xStack Storage TM D-Link xStack Storage iSCSI SAN Arrays Managed SAN Solutions DSN-3200 & DSN-3400 User’s Guide Version 1.
© 2006-2007 D-Link Networks, Inc. All Rights Reserved D-Link Systems, Inc. makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. D-Link Systems, Inc. shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material. This document contains proprietary information, which is protected by copyright.
Safety Information There is a danger of a new battery exploding if it is incorrectly installed. Replace the battery pack only with the same or equivalent type recommended by the manufacturer. Do not dispose of the battery along with household waste. Contact your local waste disposal agency for the address of the nearest battery deposit site. This product also uses a lithium coin cell battery.
Preface This User Functional Guide is intended for storage managers and administrators responsible for configuring and maintaining the XStack Storage unit. This User Functional Guide assumes that the user: Is computer literate. Is familiar with operating Web browser software and working in a windowing environment. Has a basic understanding of storage products and concepts. Typographic Conventions The following conventions and icons are used in this User Functional Guide.
Contact Information You can find software updates and user documentation on the D-Link website. D-Link provides free technical support for customers within the United States and within Canada for the duration of the warranty period on this product. U.S. and Canadian customers can contact D-Link Technical Support through our website, or by phone. Tech Support for customers within the United States: D-Link Technical Support over the Telephone Please see our support site for current number: • http://support.
vi Preface
Contents Chapter 1 Introduction ..........................................................................................................................15 1.1 1.2 1.3 1.4 1.5 1.6 Chapter 2 Understanding Terminology and Concepts .......................................................................23 2.1 2.2 2.3 2.4 2.5 2.6 Chapter 3 Overview ..........................................................................................24 Understanding iSCSI ...............................................
4.8 4.9 4.10 4.11 Chapter 5 Configuring the XStack Storage Unit..................................................................................55 5.1 5.2 5.3 5.4 5.5 5.6 5.7 Chapter 6 Getting Started .................................................................................. 56 5.1.1 Launching the XStack Storage Management Console ............................. 56 5.1.2 Understanding the Main Screen...................................................... 58 Initial XStack Storage Setup ......
6.2 6.3 6.4 6.5 Blade A Base Pool Screens ................................................................... 133 6.2.1 Viewing Storage Pool Information ................................................. 134 6.2.2 Viewing Storage Pool Tasks ......................................................... 135 6.2.3 Viewing Information about Volumes in the Blade A Base Pool ................ 137 6.2.4 Viewing Information about Drives in the Blade A Base Pool................... 141 Network Entities Screens.........
Appendix G Acronyms and Abbreviations............................................................................................190 Index x .............................................................................................................................................
List of Figures Figure 1-1 XStack Storage System Diagram ............................................................19 Figure 2-1 Internal Structure of a Volume .............................................................26 Table 2-2 Ways to Organize Volumes...................................................................26 Figure 3-1 Front View of the XStack DSN-3000 Series Enclosure ...................................32 Table 3-1 Front Panel LED indicators on the DSN-3000 series enclosure ............
Figure 5-34. Create iSCSI Node Wizard – Volume Access Right Screen............................ 97 Figure 5-35. Set CHAP Secret Dialog Box .............................................................. 98 Figure 5-36. Discovery Tab on the iSCSI Initiator Properties Dialog Box ......................... 99 Figure 5-37. Targets Tab on the iSCSI Initiator Properties Dialog Box .......................... 100 Figure 5-38. Log on to Target Dialog Box............................................................
List of Tables Table 1-1 XStack Storage Models .......................................................................16 Table 2-1 Types of Storage Pools .......................................................................25 Table 3-2 Power and Reset Switches Function........................................................36 Table 3-3 Host Network Connection LED Indicators on the XStack DSN-3200 Enclosure .......38 Table 3-4 Management Port LED Indicators on the XStack Storage DSN-3200 Enclosure .......
xiv Contents
Chapter 1 Introduction The XStack Storage controller is an intelligent, high-performance iSCSI Gigabit Ethernet storage solution designed for businesses that want to improve the reliability, availability, serviceability, and performance of their storage systems.
1.1 Models XStack Storage is available in several models which vary according to the number, speed, and type of host network connections. Table 1-1 lists XStack Storage model details.
1.3 Benefits The XStack Storage line provides a range of benefits that stem from the ability to use familiar, proven, and widespread networking technologies like IP and Ethernet for storage solutions. One of the XStack Storage controller’s major benefits is that it is based upon the iSCSI standard that uses the same Ethernet 802.3 frame format, access control, full-duplex and flow control technologies already in place in most companies.
1.4 Features The XStack Storage DSN-3000 family has the following features: High-performance iSCSI storage system Highly integrated, reliable, multifunction ASIC Low-latency, high-performance design Fully featured, integrated storage virtualization Eight copper 1Gb (802.3ab) Ethernet network ports on the DSN-3200 One XFP-transceiver 10Gb Ethernet port on the DSN-3400. (XFP transceiver sold separately) Up to 15 hot-swappable SATA disk drives One standard RJ-45 copper 10/100 (802.3i/802.
1.5 System Overview Figure 1-1 shows a typical Storage Area Network (SAN) configuration in which XStack Storage can be used. The Storage Area Network portion of this diagram is a private high-speed Ethernet network that is dedicated to the exchange of data between the network servers and the XStack Storage unit. The high bandwidth used by the servers exchanging data with the XStack Storage unit can easily consume high bandwidth on the LAN (Local Area Network) where users PCs are attached.
1.6 Applications The XStack Storage iSCSI solution broadens the options available to organizations for addressing the availability, performance, and manageability issues caused by continual data growth. And at its lower overall cost, it creates an appealing argument for transition to networked storage.
1.6.5 Accelerated Backup Operations Using the XStack Storage, backup operations previously restricted to operating across traditional IP LANs at the file level can now operate across IP storage networks at the block level. This shift facilitates faster backup times, and provides users with the flexibility to use shared or dedicated IP networks for storage operations. This wide-area access also means that storage can be backed up from any location with an IP connection.
Chapter 1 Introduction
Chapter 2 Understanding Terminology and Concepts This chapter provides a background on managing virtual storage, and explains key terms and concepts associated with virtual storage. Topics in this chapter include: Section 2.1, Overview on page 24 Section 2.2, Understanding iSCSI on page 24 Section 2.3, Storage Pools and Drives on page 25 Section 2.4, Volumes on page 26 Section 2.5, Spare Count on page 28 Section 2.
2.1 Overview The term “storage virtualization” refers to the process of grouping together independent storage devices found across a network to create what seems to be a single large storage entity that can be centrally managed. The purpose of XStack Storage is to virtualize disk storage for use by a customer’s host computers (servers). With a SAN, servers connected to that network can access any SAN device (such as an xStack Storage unit) wherever that device is attached to the storage area network.
The iSCSI protocol defines two types of iSCSI nodes: The initiator node The target node The iSCSI initiator node consists of a name and a set of properties. The server’s operating system provides software to define and configure its iSCSI initiator node. The XStack Storage unit serves as one or more iSCSI target nodes. Section 5.3.5 describes how to use the XStack Storage management console to define and configure iSCSI target nodes.
If a volume is reduced (for example, if a physical drive fails), the firmware automatically moves a drive from the available pool to the Blade A Base Pool and starts the rebuild operation for that volume. 2.4 Volumes A volume is a set of blocks of storage that are organized and presented for use by a customer’s server (an iSCSI initiator node).
For organizations that are striped, the data distributed among multiple drives is organized in a series of “stripes.” Each stripe consists of a fixed number of blocks on each drive. The fixed number of blocks used on each drive is called a “chunk.” This can be viewed as an array where each row is a stripe and each column is a drive. The term “Member” is defined as the number of columns in this array. The XStack Storage unit can allocate the required space very flexibly (i.e.
Manually: The Administrator selects the organization and all other parameters described above, and specifies the drives that can be used for the volume. The XStack Storage unit then finds the storage space on the given drives to allocate and create the Volume. Disk space is assigned to a volume in extents. The extents that make up a volume can be seen on the XStack Storage Management console. The extents are organized into members.
In either case, when the XStack Storage unit finds replacement space on another drive, it performs one Rebuild task for each extent that used space on the failed drive. If replacement space is not available on the drives in the pool associated with the volume, and one or more drives exist in the available pool, a drive is obtained from the available pool and automatically moved to the volume’s pool. A Rebuild task can be suspended and resumed, but cannot be cancelled.
Chapter 2 Understanding Concepts and Terms
Chapter 3 Identifying Hardware Components This chapter describes the XStack Storage hardware components. Topics in this chapter include: Section 3.1, Front Panel Components on page 32 Section 3.
3.1 Front Panel Components The following sections describe the hardware components on the front of the XStack Storage enclosure. Figure 3-1 shows the removable front bezel along with the drive bays and major components. Figure 3-1 Front View of the XStack DSN-3000 Series Enclosure When installed, the front bezel uses pipes to pass light from the LEDs behind it to the front for viewing. The bezel itself is passive and has no active LEDs.
3.1.1 LEDs Figure 3-1 reveals several LEDs that provide useful information about the state of the XStack Storage unit. The Power LED illuminates when the system is powered. The bicolor Boot and Fault LED will remain clear during bootup and then green if booting is successful. If the boot process is unsuccessful, or a system fault occurs, then it will turn red. Each of the fifteen drive bays has two LEDs associated with it, a bicolor drive activity and fault LED and a drive power LED.
3.1.3 Drive Bays Figure 3-1 illustrates the fifteen hot-swappable drive bays and their numbering scheme from left to right (0 through 14). 3.1.3.1 Drive and Tray Removal A drive/tray assembly can be removed by pressing upwards on the green latch found on the tray and removing it with the handle as shown in Figure 3-2. Figure 3-2 Drive and Tray Removal Removal of a populated drive/tray assembly can have unforeseen effects including the loss of all data in a volume.
3.1.3.2 Drive and Tray Installation A drive/tray assembly can be installed by inserting the drive/tray assembly into the open drive bay. Push the tray at the point indicated in Step 1 of Figure 3-3 and push until it is seated firmly within the bay. As you press, you will see the tray handle begin to move inwards as the locking mechanism enters the locking slot. When you see this, then you must push the tray handle inwards as shown in Step 2 until you hear the green locking mechanism click.
3.2 Back Panel Components The following sections describe the hardware components on the rear of the XStack Storage enclosure. Figure 3-4 shows the major components. Figure 3-4 Rear View of the XStack DSN-3200 Enclosure 3.2.1 Switches The rear panel of the XStack Storage unit enclosure has two switches as shown in Figure 3-5. Table 3-2 identifies the switches and their function.
3.2.2 External Interfaces Figure 3-4 shows an area labeled “External Interfaces” where the external ports of the DSN3000 Series are found. Section 3.2.2.1, DSN-3200 external interfaces are described on page 37. Section 3.2.2.3, DSN-3400 external interfaces are described on page 39. 3.2.2.
3.2.2.2 DSN-3200 LEDs Each RJ-45 host network connection on the back of the XStack Storage DSN-3200 enclosure has two bicolor light-emitting diode (LED) indicators that show the activity and speed for that port. Table 3-3 describes the host network connection LED indicators on the back of the XStack Storage enclosures. Table 3-3 Host Network Connection LED Indicators on the XStack DSN-3200 Enclosure LED Color RJ-45 Port Activity Green Data is being transmitted on the RJ-45 port.
Host Network Connections Port 0 Port 2 Port 4 Port 6 Port 1 Port 3 Port 5 Port 7 Mg m t Ethernet Diagnostic Port Activity/Link LED Speed LED Figure 3-7 Management Port LED Locations 3.2.2.
3.2.2.4 DSN-3400 LEDs Two LEDs next to the XFP connector show transmit (Tx) and receive (Rx) activity on the host network interface. Table 3-5 describes the Tx and Rx LED indicators on the back of the XStack DSN-3400. Table 3-5 Host Network Connection LED Indicators on the XStack DSN-3400 Enclosure LED Tx Link Color OFF Blinks Green Rx Link OFF Description There is no transmit activity. There is transmit activity from the XStack DSN-3400. There is no receive activity.
XStack Storage User’s Guide 41
Chapter 4 Installing the XStack Storage Unit This chapter describes how to install the XStack Storage unit. The topics in this chapter include: Section 4.1, Site Considerations on page 43 Section 4.2, Safety Considerations on page 44 Section 4.3, Unpacking the XStack Storage Unit on page 46 Section 4.4, Items Supplied by the User on page 47 Section 4.5, Installing the XStack Storage Unit without a Rack on page 48 Section 4.6, Installing the XStack Storage Unit in a Rack on page 48 Section 4.
4.1 Site Considerations The site where you install the XStack Storage unit can affect its performance, Please observe the following guidelines when setting up the XStack Storage unit. Install the XStack Storage unit on a sturdy, level surface that can support the unit. A fully populated XStack Storage unit weighs approximately 75 lbs. (33 kg.). The power outlet should be within six feet (1.82 meters) of the XStack Storage unit.
4.2 Safety Considerations The following sections provide guidelines to ensure your safety when installing and working with the XStack Storage unit. 4.2.1 General Safety Guidelines Observe the following general guidelines to ensure safety: Keep tools away from walk areas where you and others could trip over them. Do not wear loose clothing that could get caught in the chassis mounting hardware. Fasten your tie or scarf to your sleeves.
4.2.3 ESD Safety Precautions Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. Static voltages as low as 30 volts can cause latent damage to circuitry. ESD can result in complete or intermittent failures. Therefore, observe all standard antistatic procedures (for example, wear a grounding strap) when handling electronic equipment and components.
4.3 Unpacking the XStack Storage Unit After receiving the XStack Storage unit, perform the following steps to ensure that it and other contents arrived safely. To unpack the XStack Storage unit: 1. Inspect the outer shipping container for any damage that may have occurred in shipping. Report any sign of damage to the appropriate shipping agency. 2. Remove the XStack Storage unit and cables from the shipping container. 3.
4.4 Items Supplied by the User Table 4-1 lists the additional items that you must supply to perform the XStack Storage unit installation. All users must provide the items in the first row of Table 4-1. Thereafter, the additional items required for installation depend on the user category into which you fit.
4.5 Installing the XStack Storage Unit without a Rack When installing the XStack Storage unit on a desktop or shelf, allow enough ventilation space between the XStack Storage unit and any other objects in the vicinity. In particular, be sure not to block the air vents on the front and back of the XStack Storage unit enclosure. Install the cables and power cord according to the procedures in the following sections. 4.
4.6.1 Connecting to the XStack Storage DSN-3200 Host Network Connection Ports The XStack Storage DSN-3200 host network connection ports consist of eight RJ-45 data ports. These ports connect to your SAN using either a straight-through or cross-over RJ-45 Ethernet cable (the XStack Storage unit auto-senses the type of cable used). You will need one cable for each RJ45 data port you want to connect to your SAN.
4.7 Connecting to the XStack Storage Management Port Connecting a PC to the XStack Storage management port lets you configure and manage the XStack Storage unit. This procedure requires a PC with an installed NIC and an appropriately configured Ethernet cable. To connect the PC directly to the XStack Storage management port, use a cross-over cable. To connect the PC to the XStack Storage unit using a hub or switch, use a straight-through cable.
4.8 Connecting the Battery Pack The XStack Storage unit comes equipped with a standard 6-cell battery pack to provide back up of the buffer cache contents (See Figure 4-1). Since write-back caching is always enabled on the XStack Storage unit, we recommend you have a battery installed at all times.
4.9 Connecting the Power Cords The receptacles for connecting the XStack Storage unit’s three power cords appears on the back of the unit as seen in Figure 4-2. To connect a power cord for each of the power supplies three redundant power modules, use the following procedure. 1. Plug the female end of the power cord into one of the three 3-pronged power connectors on the back of the XStack Storage unit. 2. Plug the other end of the power cord into a working AC outlet that is not controlled by a wall outlet.
4.10 Booting the XStack Storage Unit To power on the XStack Storage unit, press the power switch on the rear panel as seen in Figure 4-3. When you power-on the XStack Storage unit, the following actions occur: The front panel Power OK LED goes ON. The XStack Storage unit runs its startup process, which takes from 4 to 5 minutes to complete. The front panel Link Status LEDs for the SATA drive LEDs may flash.
Chapter 4 Installing the XStack Storage
Chapter 5 Configuring the XStack Storage Unit After you install the XStack Storage unit, you can perform the procedures in this chapter to configure the unit. The XStack Storage unit provides an intuitive graphical Web Manager interface that allows users to manage the XStack Storage unit in a visual environment. This chapter describes how to use the Web manager interface to configure and manage the XStack Storage unit. The topics in this chapter include: Section 5.1, Getting Started on page 56 Section 5.
5.1 Getting Started The following sections provide instructions for getting started with the XStack Storage Web Manager. 5.1.1 Launching the XStack Storage Management Console The following procedure describes how to launch the XStack Storage Management Console. The XStack Storage Web Manager requires Java v1.4.2. If the management console does not have this Java version installed, you can download it using the XStack Storage Login screen.
The IP address on your PC's NIC must be on the same IP subnetwork (192.168.1.x) as the management port. All subnets must be unique between all ports, including the management port. 3. Enter your username and password in the appropriate text boxes. The first time you log in, you must use the default username (admin) and password (admin). If you create another account with admin and add/edit user privileges and then delete the default admin account, write the new username and password on a piece of paper.
5.1.2 Understanding the Main Screen Figure 5-3 shows the areas of the XStack Storage management console main screen. The following section describes the areas indicated in Figure 5-3.
5.1.2.1 Menu / Tool Bar Area The Menu/Tool Bar Area appears at the top of the XStack Storage management console window. This area contains the following components (see Figure 5-4): Title bar. The title bar shows the name of the application. On the right side of the title bar are the standard Windows buttons for minimizing, maximizing, and closing the XStack Storage management console application. Menu bar. The menu bar is located below the title bar.
5.1.2.2 Resources Panel The resources pane appears along the left side of the XStack Storage management console window (see Figure 5-5). This pane can show either physical resources (such as drives and Ethernet connections) or logical resources (such as iSCSI initiator, iSCSI target, and LAG resources), depending on whether the Physical Resources tab or Logical Resources tab is selected. These tabs work the same way Windows Explorer works.
5.1.2.2.1 Physical Resources Tab The Physical Resources tab contains the following entities: The XStack Storage unit ( ). The physical drives attached to the XStack Storage ( ). The Ethernet ports on the XStack Storage ( ). To enhance viewing, the port icons are color coded (black = link is down, green = link is up). 5.1.2.2.2 Logical Resources Tab The Logical Resources tab contains the following entities: Unusable Collection ( ). Shows drives that have been pulled out of the XStack Storage unit.
Figure 5-6 Main Display Area Figure 5-7 Example of the Main Display Area Showing Blade A Base Pool Information 62 Chapter 5 Configuring the XStack Storage
5.1.2.4 Footer The footer appears at the bottom of the XStack Storage management console window. The footer shows status information when appropriate. If you select Blade A Base Pool in the Logical Resources tab, for example, the words Blade A Base Pool appear in the footer (see Figure 5-8).
5.2 Initial XStack Storage Setup Once a network connection has been established with the XStack Storage unit and an instance of the Web Manager is open, the following basic configuration tasks are recommended: Configuring the management interface – described below. Verifying the XStack Storage’s date and time settings – see Section 5.2.2. Configuring for email alerts – see Section 5.2.3. 5.2.
Either step displays the Configure Out of Band Port dialog box, with the current settings shown (see Figure 5-9). Figure 5-9 Configure Out of Band Port Dialog Box 3. Complete the fields in the dialog box: – IP address after restart. Enter an available IP address that will take effect after the XStack Storage unit restarts. – Subnet Mask after restart. Enter the subnet mask that will take effect after the XStack Storage unit restarts. – Host name after restart.
For convenience, the current settings appear below the fields where you enter the new settings. It is important for you to remember the new IP address, as you will need it for subsequent logins to the XStack Storage management console. We recommend that you write the IP address on a piece of paper and store it in a safe place in case you need to refer to it in the future. 4. On the File menu, click Restart. When the confirmation prompt “Do you want to restart the system?” appears, click Yes. 5.
Figure 5-10 XStack Storage Date and Time Dialog Box 3. Complete the fields in the dialog box: – Timezone. Select the appropriate timezone from the drop-down list. – System Date. Either use the controls to the right of this field to select the appropriate system date or click the calendar icon and select a date from the popup calendar. – System Time. Use the controls to the right of this field to select the appropriate system time. 4. Click OK. 5.2.
Figure 5-11 Configure Email Notification Dialog Box 3. Complete the fields in the dialog box: – Enable Email Notification Support. Click this option to enable email notifications from the XStack Storage. – From Address. Enter an IP address, email address, or other meaningful entry that identifies the XStack Storage as the source of the email. – To Address. Enter the email address where notifications are to be sent. This can be an individual email address or a distribution list. – SMTP Server.
5.3 Managing the XStack Storage Unit The following steps summarize the procedures for configuring and managing storage on the XStack Storage unit. For more information about a step, refer to the section show in the step. 1. Create one or more volumes on the disks attached to the XStack Storage unit. Refer to Section 5.3.1. 2. Create one or more iSCSI initiator nodes. Refer to Section 5.3.2. 3. Modify the LAG settings, if desired. Refer to Section 5.3.3 4. Create one or more network portals.
5.3.1.1.1 Creating Volumes Automatically To create volumes automatically with the Create Volume Wizard, use the following procedure. As you create volumes, record the information in Table D-1 on page 162. 1. In the Logical Resources tab, click Blade A Base Pool. 2. Perform one of the following steps in the Logical Resources tab: – Click the Create Volume button on the toolbar: – On the Storage menu, click Create Volume.
3. Complete the fields in the screen: – Name. Enter the name of the volume you are creating. – Size. Enter the size of the volume you are creating. Do not type a decimal point. Use the drop-down box to select the volume capacity: B = bytes KB = kilobytes MB = megabytes GB = gigabytes TB = terabytes All volumes must be at least 1 MB in size. – Data Redundancy. Select whether the volume will have no data redundancy or parity or mirror redundancy.
5. Use the slider bars to select the access bandwidth and storage efficiency (if displayed) desired for this volume. The values allowed for each ranges from 0-10. Their meaning, and usage is as follows: – Access Bandwidth Weight: This setting is a measure of how much bandwidth the volume will use (i.e., how much initiator I/O activity can be expected for the volume). A large number indicates more I/O.
If you selected None or Mirror for Data Redundancy, the Access and Efficiency Settings screen contains only the Access Bandwidth Weight setting. 6. Click the Finish button. The main screen reappears and the volume you created appears under Blade A Base Pool in the Logical Resources tab. A plus sign appears next to Blade A Base Pool. Click it to see the volume you created. 5.3.1.1.2 Creating Volumes Manually You use the Manual Create Volume Wizard to create volumes manually.
Figure 5-14 Manual Create Volume Wizard - Select Volume Type to Create Screen 6. Complete the fields in the screen: – Name. Enter the name of the volume you are creating. – Size. Enter the size of the volume you are creating. Do not type a decimal point. Use the drop-down box to select the volume capacity: – 74 B = bytes KB = kilobytes MB = megabytes GB = gigabytes TB = terabytes Configuration.
Table 2-2 defines the volume organizations. – Chunk Size. Select the size of each chunk from one of the commonly used chunk sizes shown: If you selected JBOD or Mirror as your configuration setting, the Chunk Size setting is gray and unavailable. 7. Click the Next button. The Select the Drives screen appears (see Figure 5-15).
8. In the left box, select the drives from which the volume will be allocated, then click the Add button. Observe the following guidelines when selecting drives: – JBOD volumes support a minimum of 1 drive and can span across additional drives if the capacity required exceeds that which a single drive can provide. – Stripe Mirror volumes support an even number of drives, from 4 to 16. – Parity volumes support 3 to 16 drives. – Mirror and striped volumes support 2 to 16 drives.
5.3.1.2 Reconfiguring Volumes There may be times when you need to reconfigure a volume. For example, you may want to expand a volume to add capacity or delete volumes that are no longer used. To reconfigure a volume, use the following procedure. 1. In the Logical Resources tab, click the volume you want to reconfigure. 2. Perform one of the following steps: – On the Storage menu, click Reconfig Volume. – Press the right mouse button and click Reconfig Volume.
Figure 5-17 Expand Volume Message 5. Click OK to remove the message. If the selected volume cannot support the size you specified, an error message appears. If this occurs, specify a smaller size. 5.3.1.4 Deleting Volumes If you no longer need a volume, use the following procedure to delete it. You cannot delete a volume on a target node that has an active iSCSI connection.
Either step displays the message in Figure 5-18. Figure 5-18 Delete Volume Confirmation Message 3. Click Yes to delete the volume. (Or click No to keep the volume.) If you clicked Yes, the message in Figure 5-19 appears. Figure 5-19 Successful Volume Deletion Message 4. Click OK to remove the message.
5.3.1.5 Performing a Parity Scan on a Volume Using the XStack Storage management console, you can scan a parity volume for errors. This task reads every block in the volume to ensure that parity is correct. If parity errors are found, this task corrects the errors. To perform a parity scan on a volume, use the following procedure. 1. Click the volume on which you want to perform the parity scan. 2. Perform one of the following steps: – On the Storage menu, click Parity Scan.
5.3.1.6 Performing a Media Scan on a Volume Using the XStack Storage management console, you can scan a JBOD, stripe, stripe mirror, or stripe mirror media volume for errors. This task reads every block in the volume looking for errors as described for Media Scan to ensure that the media is correct. If media errors are found, this task corrects the errors. To perform a media scan on a volume, use the following procedure. 1. Click the volume on which you want to perform the media scan. 2.
5.3.2 Adding iSCSI Initiators The following procedure describes how to add iSCSI initiators. Adding initiators defines what initiators have access to the target. You add iSCSI initiators by running the Add Initiator Wizard. 1. Perform one of the following steps in the Logical Resources tab: – Click Initiator Resources. Then, on the iSCSI menu, click Add Initiator. – Right-click Initiator Resources and click Add Initiator.
After you add initiators, you can monitor their status using the Initiator Access Info screen (refer to Section 6.3.3), Initiator Information screen (refer to Section 6.4.1), and LUN Map Information screen (refer to Section 6.4.2). 5.3.3 Working with LAGS and VLANS The XStack Storage unit manages the data ports on the enclosure's back panel using the concept of LAG ports. In a simple configuration, a LAG port associates a single Ethernet port (i.e.
Figure 5-23 Example of Link Aggregation between the XStack Storage and a Gigabit Ethernet Switch 5.3.3.1 Creating LAGS and VLANs By default, each physical data port on the XStack Storage corresponds to a LAG. For example: The default number of LAGs for the XStack Storage DSN-3200 is eight. The default number of LAGs for the XStack Storage DSN-3400 is one. By default, each data port corresponds to the LAG port of the same number.
Either step starts the Create Link Aggregation Group Wizard and displays the LAG Parameters screen (see Figure 5-29). Figure 5-24 Create Link Aggregation Group Wizard - LAG Parameters Screen 5. Complete the fields in the screen: – MTU Size. This is a read-only field. – Ethernet Encapsulation. Select the Ethernet frame type to be used for fetching packets from upper-layer protocols, and placing header and footer information around the data before it traverses the network.
Figure 5-25 Create Link Aggregation Group Wizard - Add/Delete Ethernet Ports Screen 7. To add Ethernet ports, select one or more ports in the left box and click Add to move them to the right box. 8. To remove one or more Ethernet ports, select them in the right box and click Remove to move it to the left box. 9. When you finish adding Ethernet ports, click the Finish button. After you create LAGs, you can monitor their status using the LAG Port Info screen (refer to Section 6.3.4).
5.3.3.2 Modifying LAG Parameters There may be times when you need to modify LAG parameters. Using the XStack Storage management console, you can view the Maximum Transmission Unit (MTU) size and requested speed. As you modify LAG parameters, record the information in Table D-3 on page 166. To modify LAG parameters, use the following procedure. 1. In the Logical Resources tab, click the LAG whose parameters you want to change. 2.
5.3.3.3 Adding or Deleting Physical Ports in a LAG There may be times when you want to add physical ports to or delete physical ports from a LAG. The following steps describe this procedure. As you add or remove physical ports, record the information in Table D-3 on page 166. 1. In the Logical Resources tab, click a LAG whose physical port you want to configure. 2. On the Network menu, click Config Physical Port.
5.3.3.4 Deleting LAGs If you no longer need a LAG, use the following procedure to delete it. A warning message does not appear before you delete a LAG. Therefore, be sure you do not need the LAG before you delete it. 1. In the Logical Resources tab, click the LAG you want to delete. 2. Perform one of the following steps: – On the Storage menu, click Delete LAG. – Right-click and click Delete LAG. Either step deletes the selected LAG.
5.3.4 Working with Network Portals This section describes how to work with network portals. The network portal is the physical Ethernet port attached to the host. Before you create a network portal, ascertain the IP address of the iSCSI initiator because the initiator and network portal must have different IP addresses, yet reside on the same subnet. For more information about IP addresses and subnets, refer to Appendix E. 5.3.4.
Either step starts the Create Network Portal Wizard and displays the Set the IP Address screen (see Figure 5-28). Figure 5-28 Create Network Portal Wizard – Set the IP Address Screen 3. Complete the fields in the screen: – IP Address. Enter the IP address for the network portal. The IP address must be a unique address that is different than the management port and on the same subnet as the iSCSI initiator. For more information, refer to Appendix E. – Subnet mask.
After you create network portals, you can monitor their status using the Portals Information screen (refer to Section 6.3.5). 5.3.4.3 Modifying Network Portal Parameters There may be times when you need to change the IP address or subnet mask for a network portal. To modify a network portal’s configuration settings, use the following procedure. 1. Delete the network portal following the steps outlined in section 5.3.4.4 2.
5.3.5 Creating iSCSI Target Nodes After you create one or more volumes, iSCSI initiators, and LAGs, you have all the prerequisites to create an iSCSI target node. As you create iSCSI target nodes, record the information in Table D-5 on page 170. To create an iSCSI target node, use the following procedure. 1. In the Logical Resources tab, click Target Resources or Network Entities. 2. Perform one of the following steps: – On the iSCSI menu, click Create iSCSI Target Node.
The CHAP secret is case sensitive. For security, each typed character in the CHAP secret appears as an asterisk (*). If you decide not to specify a CHAP secret now, you can do so in the future using the Set CHAP Secret command in the iSCSI menu (refer to Section 5.3.5.1). Figure 5-30 Create iSCSI Node Wizard - Enter iSCSI Node Information Screen with CHAP Secret Field Shown 4. Click Next. The Configure iSCSI Node Parameters screen appears (see Figure 5-31).
5. Accept the default settings in the Session Settings and Connection Settings tabs and click Next. The Modify iSCSI Network Portal screen appears (see Figure 5-32). Figure 5-32 Create iSCSI Node Wizard – iSCSI Network Portal Screen 6. The left box lists all of the iSCSI network portals that you created. Click the iSCSI network portal(s) in this list that are allowed to access the volumes through the iSCSI initiator that you will select. 7.
Figure 5-33 Create iSCSI Node Wizard – Initiator List Screen 9. The left box lists all the iSCSI initiators you have defined. Click the iSCSI initiator(s) in this list that are allowed to access the volumes through the target network portals whose IP addresses you selected in the previous screen. 10. Click Add to move the selected iSCSI initiator(s) to the right box.
Figure 5-34. Create iSCSI Node Wizard – Volume Access Right Screen 12. The left box lists all the volumes you have created. Click a volume in this list, then click Add to move the selected volume to the right box. You can select more than one volume in the left box: To select contiguous volumes in the left box, click the first volume; then hold down the Shift key and click the last volume. All volumes between the first and last volumes are selected.
5.3.5.1 Changing the CHAP Secret When you created an iSCSI target node, you could specify an optional CHAP secret. If desired, you can change the CHAP secret using the following procedure. If you change the CHAP secret, record the information in Table D-5 on page 170. 1. Click a network entity (prefaced by naa) in the Logical Resources tab. 2. On the iSCSI menu, click Change CHAP Secret. The Set CHAP Secret dialog box appears (see Figure 5-35). Figure 5-35. Set CHAP Secret Dialog Box 3.
5.3.6 Logging on to the iSCSI Initiator Computer After you create a volume (Section 5.2.3), an iSCSI initiator (Section 5.3.2), a network portal (Section 5.3.4), and an iSCSI target nodes (Section 5.3.3), use the following procedure to log on to the Microsoft iSCSI initiator. 1. Connect the appropriate XStack Storage Ethernet port to the NIC in the iSCSI initiator computer using an Ethernet RJ-45 cable. 2.
6. Click the Targets tab (see Figure 5-37). Notice that the iSCSI initiator software lists the target node name. It found this name after you entered the IP address or DNS name of the iSCSI target node. Figure 5-37. Targets Tab on the iSCSI Initiator Properties Dialog Box 7. Click Log On to display the Log On To Target dialog box (see Figure 5-38). Figure 5-38. Log on to Target Dialog Box 8. To connect to the iSCSI target node, click OK.
Figure 5-40.
5.3.7 Changing the iSCSI Port Number The iSCSI port number is the TCP/IP port number on which the iSCSI target is listening. The standard port number for iSCSI is 3260, but some targets may allow the port number to be customized. To change the iSCSI port number, use the following procedure. 1. Click the XStack Storage icon at the top of the Physical Resources tab. 2. Perform one of the following steps: – On the File menu, click Change iSCSI Port Number. Right-click and click Change iSCSI Port Number.
5.3.8 Setting the Default Task Priority You can set the default task priority to specify whether background tasks receive a high or low priority. By default, the default task priority provides for minimum impact on the foreground applications performed by the XStack Storage unit. However, you can change this setting if desired. For example, you may want to specify a higher default task priority for time-critical tasks such as backups.
5.3.9 Adding, Viewing, and Deleting IP Route Tables Routing is the process of deciding the disposition of each incoming and outbound packet that the XStack Storage handles. Using the XStack Storage management console, you can view the XStack Storage’s routing table. If a route being used encounters problems, you can use the XStack Storage management console to add route tables. Adding a route is also useful if you discover a quick alternative route to the destination.
– Metric. Specifies an integer cost metric (from 1 to 9999) for the route, which is used when choosing among multiple routes in the routing table that most closely match the destination address of a packet being forwarded. The route with the lowest metric is chosen. The metric can reflect the number of hops, the speed of the path, path reliability, path throughput, or administrative properties. Figure 5-42. Adding a Route Table 3.
5.3.10 Modifying System TCP/IP Settings You can use the XStack Storage management console to view and change the system’s TCP/IP settings. To modify the system TCP/IP settings, use the following procedure. 1. Click the XStack Storage icon at the top of the Physical Resources tab. 2. Perform one of the following steps: – On the File menu, click Modify System TCP/IP Settings. Right-click and click Modify System TCP/IP Settings.
3. Complete the fields in the dialog box: – Max Segment Size. This option indicates the maximum size TCP segment that can be accepted on a TCP/IP connection when the connection is established. – Window Scale. This option lets you use large windows during TCP/IP connections. On fast, high-bandwidth networks, a large TCP window provides greater efficiency by allowing for a greater amount of unacknowledged data. – TCP Timestamp Enabled.
5.3.11 Setting the Spare Count You can specify the number of spares available to the XStack Storage unit. A spare is a drive that is present in the system but normally unused until another drive fails, at which time the drive is automatically substituted for the failed drive. For more information about the spare count, refer to Section 2.5. To set the spare count, use the following procedure. 1. Click the XStack Storage icon at the top of the Physical Resources tab. 2.
5.3.12 Creating Scheduled Tasks You can use the XStack Storage management console to set up tasks that you want the Storage Controller to perform, such as performing parity or media scans. When you create a task, you can specify the day and time when the task is to be performed and whether the task will repeat (recur). As you create scheduled tasks, record the information in Table D-7 on page 174. To create scheduled tasks, use the following procedure. 1. On the View menu, click Create Task.
Figure 5-46. Scheduled Task Wizard – Select Date and Time Screen 4. Complete the fields in the screen: – Start time. Use the controls to specify the time when the scheduled task is to start. – Start date. Use the calendar to select the date when the scheduled task is to start. You can use the controls below the calendar to move to the previous year, previous month, next month, or next year. 5. Click Finish.
5.3.13 Setting the System Battery Policy The XStack Storage unit can accommodate an optional battery pack (refer to Section 0). Using the XStack Storage management console, you can specify a battery policy that defines the action that the XStack Storage unit is to perform if the battery fails. To set the system battery policy, use the following procedure. 1. Click the XStack Storage icon at the top of the Physical Resources tab. 2.
Figure 5-47. Battery Policy Dialog Box 3. Select the appropriate setting that the XStack Storage unit should use if the battery fails. The choices are: – Ignore the status of the battery and do nothing. Use this setting if you will be operating the XStack Storage from AC power with an uninterruptible power supply. – Stop buffering I/O in cache, and directly write data to disk. Use this setting if you want to write to disk all I/O buffered in cache memory in the event of a battery failure.
5.3.14 Saving the Event Log The event log tracks the XStack Storage informational, warning, and error messages (refer to Section 6.1.2). Using the XStack Storage management console, you can save the event log as an unformatted text file to a user-specified folder. To save the event log, use the following procedure. 1. Be sure the Physical Resources tab is the active tab. 2. On the View menu, click Save Event Log Messages. The Open dialog box appears (see Figure 5-48). Figure 5-48. Open Dialog Box 3.
5.4 Managing User Accounts Before a user can access the XStack Storage management console, a user account must be set up for the user. When you set up a user account, you can specify whether the user can manage storage and/or add users and define their permissions. For more information, refer to Section 5.4.1. A user account must be set up for each user who wants to access the XStack Storage management console. The user account consists of the following: A unique user name and password.
5.4.1 Setting Up User Accounts To set up user accounts, use the following procedure. 1. Be sure the Physical Resources tab is the active tab. 2. On the View menu, click User Accounts. The User Accounts screen appears, with a list of the user accounts that have been defined (see Figure 5-49). Figure 5-49. User Accounts Screen 3. Click the Add User button. The Add New User dialog box appears (see Figure 5-50). Figure 5-50. Add New User Dialog Box 3. Complete the fields in the dialog box: – Username.
For security, each typed character in Password and Confirm password appears as an asterisk (*). – Allow to manage storage. Check this option if you want this user to be able to manage storage on the XStack Storage. – Allow to manage user accounts. Check this option if you want this user to be able to define and modify user accounts.
5.5 Performing Cache Activities The XStack Storage unit contains cache memory for storing I/O activity and data. The File menu provides options for setting the cache mode and flushing cache contents. 5.5.1 Setting Cache Mode The XStack Storage unit is capable of caching write operations. Write-back caching saves the system from performing many unnecessary write cycles to the system RAM, which can lead to noticeably faster execution.
5.6 Managing XStack Storage Configurations The XStack Storage management console provides options for saving and restoring the XStack Storage configuration. You can also return the XStack Storage unit to its factory-default settings. 5.6.1 Saving the XStack Storage Configuration To save the current XStack Storage configuration, use the following procedure. 1. On the File menu, click Save XStack Storage Configuration. The Save XStack Storage Configuration dialog box appears (see Figure 5-51).
5.6.2 Restoring the XStack Storage Configuration If you used the procedure in Section 5.6.1 to save the XStack Storage configuration, you can use the following procedure to restore the saved configuration. 1. On the File menu, click Restore XStack Storage Configuration. The Restore XStack Storage Configuration dialog box appears (see Figure 5-52). Figure 5-52. Restore XStack Storage Configuration Dialog Box 2.
5.6.3 Restoring Factory Defaults To return the XStack Storage to its factory-default settings, use the following procedure. When you return to the factory-default settings, the XStack Storage IP port reverts to 192.168.1.1. 1. On the File menu, click Restore Factory Defaults. The message in Figure 5-54 appears. Figure 5-54. Restore Factory Defaults Message 2. Click Yes to restore the factory-default settings. (Or click No to keep the current configuration.
5.7 5.7.1 Restarting and Shutting down the XStack Storage Restarting the XStack Storage To restart the XStack Storage, use the following procedure. 1. Log off from all iSCSI initiators. 2. Click the XStack Storage icon at the top of the Physical Resources tab. 3. Perform one of the following steps: – On the File menu, click Restart System. – Right-click and click Restart System. Either step displays a message that asks whether you are sure you want to restart the system. 4.
5.7.2 Shutting Down the XStack Storage Management Console To shut down the XStack Storage management console, use the following procedure. 1. Click the Physical Resources tab. 2. Perform one of the following steps: 5.7.3 – On the File menu, click Exit. – Click the Close control on the title bar. Shutting Down the XStack Storage At the end of your session, use the following procedure to shut down the XStack Storage management console.
Chapter 6 Monitoring the XStack Storage The XStack Storage management console can display a number of screens in the main area for viewing system and storage information. This chapter shows and describes the screens. Some screens are available from either the Logical Resources or Physical Resources tab. Other screens are available from both tabs. XStack Storage Screens (Physical Resources tabs) – Viewing enclosure information — refer to Section 6.1.1. – Viewing log messages — refer to Section 6.1.2.
6.1 XStack Storage Screens When the top XStack Storage icon is selected in the Physical Resources tab, the main display area can show the following screens with information about: The XStack Storage enclosure. Refer to Section 6.1.1. Log messages. Refer to Section 6.1.2. Tasks information. Refer to Section 6.1.3. CIM Server information. Refer to Section 6.1.4. Firmware image information. Refer to Section 6.1.5. 6.1.
Figure 6-1.
6.1.2 Viewing Log Messages When the top XStack Storage icon is selected in the Physical Resources tab, you can use the Log Messages screen to view the entries in the event log (see Figure 6-2). Figure 6-2. Log Messages Screen The messages are color coded, making it easy to differentiate among informational, warning, and error messages. The messages are time- and date-stamped, with the most recent entry appearing at the top of the screen.
Figure 6-3.
6.1.3 Viewing XStack Storage Tasks When the top XStack Storage icon is selected in the Physical Resources tab, you can use the Tasks Info screen to view the XStack Storage tasks (see Figure 6-4). Examples of tasks include bad block scan and volume initialization activities. Each row of the Tasks Info screen corresponds to a task. The last column, Recurring, shows whether the task is recurring and will repeat again in the future. Figure 6-4.
Figure 6-5. Example of a Task Message Details Box If you right-click a task in the Tasks Info screen, a popup similar to the one in Figure 6-6 appears. Depending on the options that are available, you can: Set a priority for the selected task. Suspend or resume the task. Cancel the task to stop the current task from being performed. If the task is recurring, it will start again automatically when scheduled. Delete the task.
Figure 6-6.
6.1.4 Viewing Server CIM Information When the top XStack Storage icon is selected in the Physical Resources tab, you can use the CIM Server Info screen to view Storage Management Initiative (SMI) server and profile information (see Figure 6-7). The SMI Server Information area has an Edit button you can click to change the SMI server information if necessary. Figure 6-7.
6.1.5 Viewing Firmware Image Information When the top XStack Storage icon is selected in the Physical Resources tab, you can use the Firmware Image Info screen to view the currently active firmware image being used by the XStack Storage (see Figure 6-8). This screen also shows other valid firmware images that have been used with the XStack Storage. For information about upgrading the XStack Storage firmware, refer to Appendix B. Figure 6-8.
6.2 Blade A Base Pool Screens When Blade A Base Pool is selected in the Logical Resources tab, the main display area can show the following screens with information about the storage pool: Storage group information. Refer to Section 6.2.1. Tasks information. Refer to Section 6.2.2. You can also display the following screens by clicking the appropriate entity below Blade A Base Pool: Volumes. Lets you view information about the volumes that make up the storage pool. Refer to Section 6.2.3. Drives.
6.2.1 Viewing Storage Pool Information When Blade A Base Pool is selected in the Logical Resources tab, you can use the Storage Group Information screen to view information about the storage pool (see Figure 6-9). The top-left side of the screen shows the storage pool type, amount of free space, total capacity, and number of drives. To the right of this information is a pie chart that provides a graphical representation of the amount of used and unused (free) space in the storage pool.
6.2.2 Viewing Storage Pool Tasks When Blade A Base Pool is selected in the Logical Resources tab, you can use the Tasks Info screen to view tasks scheduled for the storage pool (see Figure 6-10). Examples of tasks include media scan and drive initialization activities. Each row of the Tasks Info screen corresponds to a task. The last column, Recurring, shows whether the task is recurring and will repeat again in the future. Figure 6-10.
To obtain additional information about a task shown in the Tasks Info screen, double-click the task. A Task Message Details box appears, with detailed information about the task (see Figure 6-13). Figure 6-11.
6.2.3 Viewing Information about Volumes in the Blade A Base Pool When a volume is selected under Blade A Base Pool in the Logical Resources tab, two screens are available in the main display: Volume information screen. Refer to Section 6.2.3.1. Tasks Info screen. Refer to Section 6.2.3.2.
6.2.3.1 Viewing Volume Information When you click a volume under Blade A Base Pool, you can use the Volume Information screen to view information about the selected volume. The name of the volume appears in the tab. Figure 6-12, for example, shows information for a volume named “SANVOL1.” The Volume Information screen shows the following information (see Figure 6-12): The volume’s durable name and size, volume status and cache status, volume type, storage efficiency and storage bandwidth, and chunk size.
6.2.3.2 Viewing Volume Tasks When you click a volume under Blade A Base Pool, you can use the Task Info screen to view tasks assigned to the selected volume. Each row of the Tasks Info screen corresponds to a task assigned to the volume.
To obtain additional information about a task shown in the Tasks Info screen, double-click the task. A Task Message Details box appears, with detailed information about the task (see Figure 6-14) Figure 6-14.
6.2.4 Viewing Information about Drives in the Blade A Base Pool When a drive is selected under Blade A Base Pool in the Logical Resources or when a drive is selected on the Physical Resources tab, you can view information about the selected drive (see Figure 6-15). This screen shows the following information about the selected drive: Drive number Vendor model Physical capacity State (for example, online or offline) Microcode level Figure 6-15.
6.3 Network Entities Screens When a network entity is selected in the Logical Resources tab, the main display area can show the following screens with information about the selected network entity: Type Node Info. Refer to Section 6.3.1. Volume Access Info. Refer to Section 6.3.2. Initiator Access Info. Refer to Section 6.3.3. Portals Info. Refer to Section 6.3.5. 6.3.
6.3.2 Viewing Volume Access Information When a network entity is selected in the Logical Resources tab, you can use the Volume Access Info screen to view LUN Map information for the volume associated with the selected network entity. Figure 6-17.
6.3.3 Viewing Initiator Access Information When a network entity is selected in the Logical Resources tab, you can use the Initiator Access Info screen to view iSCSI initiator and access information associated with the selected network entity. Figure 6-18.
6.3.4 Viewing LAG Port Information When a LAG is selected in the Logical Resources tab, the main display shows the LAG Port Info tab (see Figure 6-19). This tab is divided into the following sections: LAG port information. This section shows the following information: – LAG MAC port address – Requested per-port speed – Aggregate LAG speed – Link status – Admin status – Ethernet encapsulation – VLAN support – Auto negotiation – MTU Ethernet Port.
6.3.5 Viewing Network Portal Information When a network entity is selected in the Logical Resources tab, you can use the Portals Info screen to view the IP address and port number associated with the selected network entity. Figure 6-20.
6.3.6 Viewing Connection Information If you select an iSCSI session in the Logical Resources tab, the main display shows the connection parameters and session information for the selected connection (see Figure 6-21). Figure 6-21.
6.4 Initiator Resource Screens When a network entity is selected in the Logical Resources tab, the main display area can show the following tabs with information about the selected iSCSI initiator: Initiator Info. Refer to Section 6.4.1. LUN Access Info. Refer to Section 6.4.2. 6.4.
6.4.2 Viewing LUN Map Information When an iSCSI initiator is selected in the Logical Resources tab, you can use the LUN Map Information screen to view LUN Map information associated with the selected iSCSI initiator (see Figure 6-23). Figure 6-23.
6.5 Viewing Ethernet Port Information When an Ethernet port is selected in the Physical Resources tab, the main display area shows the physical port information for the selected Ethernet port (see Figure 6-24). Figure 6-24.
Appendix A Summary of Menus and Commands This appendix summarizes the menus and commands available in the XStack Storage management console. A.1 File Menu The File menu contains the following commands. Command Description Shutdown System Lets you shut down the XStack Storage management console and Storage Controller. Restart System Lets you reboot the XStack Storage management console and Storage Controller. Attempt to Bind Reserved for future use.
Exit A.2 Lets you exit the XStack Storage management console. View Menu The View menu contains the following commands. Command 152 Description User Accounts Lets you set up, modify, and delete user accounts. Create Task Lets you define tasks that the XStack Storage is to perform. Tasks defined here can be viewed on the Tasks Info screen. Firmware Upgrade Lets you upgrade the XStack Storage firmware. View Manual Route Lets you view the manual route.
A.3 Storage Menu The Storage menu contains the following commands. Command Description Create Volume Lets you create a new volume. Reconfig Volume Lets you change the settings for a selected volume. Delete Volume Lets you delete a volume. Parity Scan Lets you perform a party scan on the selected drives. Expand Volume Lets you increase the capacity of a selected volume. Rebuild Volume Reserved for future use. Initialize Drive Lets you initialize a selected drive.
A.4 Network Menu The Network menu contains the following commands. Command A.5 Description Create Network Portal Lets you create a network portal. Delete Network Portal Lets you delete a network portal. Create LAG Lets you create a LAG. Delete LAG Lets you delete a LAG, Modify LAG Parameters Lets you change the settings for a selected LAG. Reset Statistics Reserved for future use. Modify Network Portal IP Address Lets you modify a network portal IP address.
A.6 Help Menu The Help menu contains the following commands. Command Description Help Reserved for future use. About Shows the XStack Storage management console version number. A System Properties tab lets you view system properties.
Appendix A Summary of Menus and Commands
Appendix B Upgrading Firmware D-Link periodically updates the firmware for the XStack Storage. The latest firmware releases are available at the D-Link Support Web site. 1. Go to the D-Link Support Web site (support.dlink.com). 2. Select your product model number from the pull-down menus. 3. Select the firmware topic. 4. Download the firmware. 5. When prompted to save the firmware file, click Save and save the file to a desired location.
Figure 6-26. Example of the Open Dialog Box 9. Navigate to the location where the firmware file you downloaded resides. 10. Click the firmware file, then click the Open button. (Or as a shortcut, double-click the firmware file). The new firmware is installed. A progress bar shows the status of the installation. 11. After the firmware is installed, a message prompts you to press OK to restart the XStack Storage to have the new firmware take effect. 12. Click OK to restart the XStack Storage.
Appendix C, Factory Default Settings This appendix lists the factory-default settings for the XStack Storage unit. Table C-1. Configure Out of Band Port Default Settings Parameter Default Value IP Address After Restart 192.168.1.1 Subnet Mask After Restart 255.255.255.0 Hostname After Restart hn0000003055100002 Gateway After Restart 0.0.0.0. Table C-2.
Table C-6. Set Default Task Priority Default Setting Parameter Default Value Default Priority 5 Table C-7. Set Spare Count Default Setting Parameter Default Value Number of Spare Counts 0 Table C-8. Modify iSCSI Port Default Setting Parameter New SCSI Port Default Value 3260 Table C-9. Email Notification Support Default Setting Parameter 160 Default Value Enable Email Notification Support Disabled SMTP Server 0.0.0.
Appendix D, Recording Your Configuration Settings This appendix contains tables you can use to record the configuration settings for your XStack Storage. Use Table D-1 to record the volumes you configure using the XStack Storage. Use Table D-2 to record the iSCSI initiators you configure using the XStack Storage. Use Table D-3 to record the LAGs you configure using the XStack Storage. Use Table D-4 to record the network portals you configure using the XStack Storage.
D.1 Recording Volumes Use Table D-1 to record information about the volumes you create. Table D-1.
Volume Name Volume Size Data Redundancy (None, Parity, Mirror) Chunk Size Configuration (JBOD, Stripe, Mirror, Stripe Mirror, Parity) Allocated Drives XStack Storage User’s Guide 163
D.2 Recording iSCSI Initiators Use Table D-2 to record information about the iSCSI initiators you create. Table D-2.
Initiator Name Initiator Password XStack Storage User’s Guide 165
D.3 Recording LAGs Use Table D-3 to record information about the LAGs you create. Table D-3.
LAG Number (1, 2,…) MTU Size Ethernet Encapsulation VLAN Supported (Yes or No) Physical Ethernet Ports in This LAG Requested Speed XStack Storage User’s Guide 167
D.4 Recording Network Portals Use Table D-4 to record information about the network portals you create. Table D-4.
LAG Number (1, 2,…) MTU Size Ethernet Encapsulation VLAN Supported (Yes or No) Physical Ethernet Ports in This LAG Requested Speed XStack Storage User’s Guide 169
D.5 Recording iSCSI Target Nodes Use Table D-5 to record information about the iSCSI target nodes you create. Table D-5.
iSCSI Node Alias Enable CHAP Secret (Yes/No) CHAP Secret (if Enabled) Initiators Selected LUN Number and Access Mode XStack Storage User’s Guide 171
D.6 Recording IP Routing Tables Use Table D-6 to record information about the IP routing tables you create. Table D-6.
Network Destination Netmask Gateway Interface Metric XStack Storage User’s Guide 173
D.7 Recording Scheduled Tasks Use Table D-7 to record information about the scheduled tasks you create. Table D-7.
Operation Name Object Operation Task Frequency (Daily, Weekly, Monthly, Once) Start Time XStack Storage User’s Guide Start Date 175
Appendix D Recording Your Configuration Settings
Appendix E Understanding IP Addresses and Subnet Masking When you configure the TCP/IP settings on the XStack Storage unit, an IP address, subnet mask, and default gateway are required. To configure these settings correctly, it is necessary to understand how TCP/IP networks are addressed and divided into networks and subnetworks. This appendix provides a brief tutorial about IP addresses and subnetworks. E.
The following example shows an octet conversion when not all of the bits are set to 1: 0 1 0 0 0 0 0 1 0 64 0 0 0 0 0 1 (0+64+0+0+0+0+0+1=65) The following example shows an IP address represented in both binary and decimal notations: decimal 192. 168. 1. 1 binary 11000000 10101000 00000001 00000001 An IP address consists of two components, the network address and the host address. The network address always contains the first octet.
Figure E-1. IP Address Classes Table E-1 displays the range of dotted-decimal values that can be assigned to each of the three principle address classes. The “nnn” represents the host-number field of the address that is assigned by the local network administrator. Table E-1. Dotted-Decimal Ranges for Each Address Class Address Class Dotted-Decimal Notation Ranges Class A (/8 prefixes) 1.nnn.nnn.nnn through 126.nnn.nnn.nnn Class B (/16 prefixes) 128.0.nnn.nnn through 191.255.nnn.
E.2.1 Class A Network Addresses Class A network addresses are used for very large networks, such as those in major international companies. Every Class A network address has an 8-bit network prefix, with the highest order bit set to 0, followed by a seven-bit network number and a 24-bit host-number that identifies each host. IP addresses with a first octet from 1 to 126 are part of this class. Class A networks are also referred to as “/8s” since they have an 8-bit network prefix.
E.2.3 Class C Network Addresses Class C network addresses are used for small to mid-size businesses. IP addresses with a first octet from 192 to 223 are part of this class. Every Class C network address has a 24-bit network prefix, with the three highest order bits set to 1-1-0, followed by a 21-bit network number and an 8-bit host-number that identifies each host.
8.20.15.1 = 00001000. 00010100. 00001111. 00000001 255.0.0.0 = 11111111. 00000000. 00000000. 00000000 Network ID Host ID The network address = 00001000 = 8 The host address = 00010100.00001111.00000001 = 20.15.1 E.4 Understanding Subnets A subnetwork (or “subnet” for short) allows a single Class A, B, or C network to be divided (or “subnetted”) into smaller pieces.
An example of valid host addresses for a subnet called subnet #1 is shown below. In this example: The italicized part of each address identifies the extended network prefix. The bold digits identify the 5-bit host-number field: Subnet #1: 11000001.00000001.00000001.010 00000 = 193.1.1.64/27 Host #1: 11000001.00000001.00000001.010 00001 = 193.1.1.65/27 Host #2: 11000001.00000001.00000001.010 00010 = 193.1.1.66/27 Host #3: 11000001.00000001.00000001.010 00011 = 193.1.1.67/27 Host #4: 11000001.00000001.
The subnet structure of a network cannot be seen outside an organization's private network. The route from the Internet to any subnet of a given IP address is the same, no matter which subnet the destination host is on. This is because all subnets of a given network number use the same network prefix, but different subnet numbers. Devices like the XStack Storage, switches, and routers within an organization need to differentiate between the individual subnets.
Base Network: 10001100.00011001.00000000.00000000 = 140.25.0.0/16 Subnet #0: 10001100.00011001.0000 0000.00000000 = 140.25.0.0/20 Subnet #1: 10001100.00011001.0001 0000.00000000 = 140.25.16.0/20 Subnet #2: 10001100.00011001.0010 0000.00000000 = 140.25.32.0/20 Subnet #3: 10001100.00011001.0011 0000.00000000 = 140.25.48.0/20 Subnet #4: 10001100.00011001.0100 0000.00000000 = 140.25.64.0/20 : : Subnet #13: 10001100.00011001.1101 0000.00000000 = 140.25.208.0/20 Subnet #14: 10001100.00011001.1110 0000.
4. Define Host Addresses for Subnet #14-3 (140.25.227.0/24) Examine the host addresses that can be assigned to subnet #14-3 (140.25.227.0/24). Each subnet of subnet #14-3 has 8 bits in the host-number field. This means that each subnet represents a block of 254 valid host addresses (28 -2). The hosts are numbered 1 through 254. The valid host addresses for subnet #14-3 are shown below.
6. Define Host Addresses for Subnet #14-14-2 (140.25.238.64/27) Examine the host addresses that can be assigned to subnet #14-14-2 (140.25.238.64/27). Each subnet of subnet #14-14 has 5 bits in the host-number field. This means that each subnet represents a block of 30 valid host addresses (25 -2). The hosts will be numbered 1 through 30. The valid host addresses for subnet #14-14-2 are shown below.
Appendix E Understanding IP Addresses and Subnet Masking
Appendix F Hardware Enclosures This appendix shows samples of hardware enclosures for the XStack Storage. F.1 Front View Figure F- 1 Front View of Enclosure F.
Appendix G Acronyms and Abbreviations Administrator The person responsible for managing storage operations. The administrator is the user who will use the storage management console provided with the XStack Storage. CHAP Challenge Handshake Authentication Protocol. CHAP is a protocol for authenticating the peer of a connection and is based upon the peers sharing a secret (a security key similar to a password). CSMA/CD Carrier Sense Multiple Access/Collision Detection.
LAG Link Aggregation Group. The combining of physical network links into a single logical link for increased bandwidth. A LAG increases capacity and availability of the communications channel between devices using existing Fast Ethernet and Gigabit Ethernet technology. LAGs also provide load balancing, where processing and communications activity is distributed across several links in a trunk, so that no single link is overwhelmed. LAN Local Area Network.
SAN Storage Area Network. A high-speed subnetwork of shared storage devices that makes all storage devices available to all servers on a LAN or WAN. As storage devices are added to a SAN, they will be accessible from any server in the larger network. In this case, the server merely acts as a pathway between the end user and the stored data. Because stored data does not reside directly on any network servers, server power is used for business applications, and network capacity is released to the end user.
Index A Accelerated Backup Operations, 21 Accounts, 115 Acronyms and Abbreviations, 195 Adding iSCSI Initiators, 83 Physical Ports to LAGs, 89 Adding, Viewing, and Deleting IP Route Tables, 105 Applications, 20 Automatically Creating Volumes, 71 B Back Panel Components, 36 Benefits, 17 Blade A Base Pool Information on Drives, 144 Screens, 135 Booting the XStack Storage Unit, 53 C Cache Setting, 118 Changing Date and Time, 66 the CHAP Secret, 99 the iSCSI Port Number, 103 CHAP Secret Changing, 99 CIM Infor
F Factory Defaults Restoring, 121 Settings, 163 Fast Nearline Backup and Recovery, 20 Features, 18 Files Menu, 155 Firmware Upgrading, 161 Firmware Image Information, 134 Front Panel Components, 32 LED indicators, 33 Front Vents, 35 Front View DSN-3000 Series, 32 G General Safety Guidelines, 44 GigaStor screens LUN Map Information, 153 Portals Info, 150 Growing a Volume, 29 H Hardware Enclosure Description, 16 Illustrations, 193 Help Menu, 159 Host Network Connection LEDs DSN-3200, 38 LEDs DSN-3400, 40 I
Volumes, 70 Management Interface Changing the Default IP Address, 64 Management Port LED Locations DSN-3200, 39 Management Port LEDs DSN-3200, 38 Management Port LEDs DSN-3400, 40 Managing Configurations, 119 Managing User Accounts, 115 Managing XStack Storage Configurations, 119 Manually Creating Volumes, 74 Media Scan, 29 Menus File, 155 Help, 159 iSCSI, 158 Network, 158 Storage, 157 View, 156 Mirror, 26 Models, 16 Modifying LAG Parameters, 88 Modifying Newtork Portal Parameters, 93 Modifying System TCP/I
Stripe mirror, 26 Subnets, 186 Switches, 36 System Diagram, 19 System Overview, 19 System TCP/IP Settings Modifying, 107 Systems Settings, 126 T Target Node Info Screen, 145 Task Message Details Screen Volumes, 143 TAsk Message Details Screen Storage Pools, 139 Task Message Details Screen Tasks, 131 Tasks Creating, 110 Tasks Info Screen, 130 Storage Pools, 138 Volumes, 142 Tasks Overview, 28 TCP/IP Default Parameters, 126 Time and Date, 66 Types of Storage Pools, 25 Typographic Conventions, iv U Understan
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