Acer Altos® NAS 700 Solution Guide Basic Setup This solution guide will show you how to set up and configure the Acer Altos NAS 700 appliance.
Abstract Acer Altos NAS 700 is a Solution based on Acer Storage Center (ASC) Software Version 4.0. ASC provides vital storage services—virtualization, mirroring, capacity expansion, scalability, TimeMark/TimeView, and more--through a software-optimized solution that runs on existing industry standard hardware. The Acer Altos NAS 700 appliance offers: NAS capability for file sharing with quota management.
CONTENTS INTRODUCTION.................................................................................... 1 Who should read this Guide 1 Contents of this Guide 1 Course Goals 2 Prerequisites 2 Overview of the ACER Altos NAS 700 Appliance 2 ACER ASC EXPRESS BASICS .............................................................. 3 What is ACER ASC Express ? 3 What is an ASC Network 5 ASC Components 7 ASC Management Console 7 ASC NAS Clients 7 SYSTEM SPECIFICATION ...............................................
Server statistics Save & Restore an ASC Server configuration Save configuration Restore configuration Licensing Set Server Properties Manage Administrators accounts & Password Manage accounts Change your administrator password System Maintenance Network configuration Physical resource Prepare devices to become logical resources SCSI aliasing Rename a SCSI device Rescan adapters Import a disk SCSI device throughput Logical Resources Write caching ASC SAN Clients Change the ACSL ASC NAS Clients Console Option
Add/delete/display/rescan ASC Servers Add/delete/expand a virtual drive ASC SAN Client on Windows NT/2000/2003 ASC SAN Client Monitor Refresh the Monitor display Stop and start the client Connect/Disconnect a server Add an ASC Server Delete a Server Organize Servers Set dependent services to start after ASC services Register tape devices for use with backup software Register disks for drive priority Filter Event Viewer information and set client options ASC SAN Client on NetWare Start the client Set the cli
To use the auditing feature: NAS properties NAS file information NAS utilities Expand a NAS Resource Access Control Lists (ACLs) Using ACL attributes Requirements Back up/restore extended attributes on Linux 146 147 152 153 153 154 154 155 156
INTRODUCTION This solution guide discusses the installation, configuration, management troubleshooting and the benefits provided by the Acer Altos NAS 700 appliance. The Altos NAS 700 appliance is a highly flexible and scalable Network Attached Storage solution. It improves storage utilization compared to D.A.S (direct attached storage). It offers storage centralized management and reduces the Total cost of Ownership.
Course Goals Enable engineers and partners to fully implement an ACER Altos NAS 700 Appliance.
ACER ASC EXPRESS BASICS What is ACER ASC Express ? The explosion of data in today’s networked computing environments stresses the abilities of many Information Technology groups while the demand to store and access data doubles each year. Since information, and the storage infrastructure that holds it, are critical to a company’s success, the management of the storage becomes a serious issue, where reliability, availability and improved disaster recovery are all key factors.
ASC offers enterprises an easy way to purchase, implement, and support new or existing enterprise SANs, while containing the costs associated with the ownership and management of storage solutions. Building an ASC storage network puts enterprise class storage services at your fingertips, allowing you to do more with less. Provides total freedom in storage connectivity: Fibre Channel, IP/iSCSI, SCSI, JBOD, RAID, and tape/library.
What is an ASC Network The ASC Storage Network can be either a dedicated storage network, just like traditional Fibre Channel SANs, or it can be embedded into the existing LAN for small or low impact applications.
(depending upon specific configurations, typically up to 16 devices per bus). For maximum throughput, ASC supports multiple SCSI busses and/or adapters. For SAN/IP Clients (non-Fibre Channel Clients), ASC packages the storage requests into IP packets using Acer’s SAN/IP™ protocol. Requests made to the client’s virtual adapters are converted to SAN/IP packets. The ASC Server receives the SAN/IP packets and converts them to SCSI commands.
ASC Components The primary components of the ASC Storage Network are the ASC Server, ASC Console, ASC SAN Clients and the ASC NAS Clients. These components all sit on the same network segment, the storage network. ASC Server The ASC Server is a dedicated network storage server. The ASC Server is attached to the physical SCSI and/or Fibre Channel storage devices on one or more SCSI or Fibre Channel busses.
SYSTEM SPECIFICATION In this part, it will cover the detailed specification summary of all important components that make up the Acer Altos NAS 700 Appliance. ACER Altos NAS700 Appliance Features High density computing in a competitive world calls for a server that can keep up and still stay cool in a rack. It's your life in the business fast lane that insists on reliability, performance, and space to move.
necessary, at the Altos NAS, this centralizes and therefore simplifies the backup management. It is also cost-effective as there is no need for backup agent on each application server. • Tower or 5HE rackable chassis to slip into a rack. • 8x DIMM slots offer up to 16 GB of registered ECC DDR333 RAM. • Up to two Intel® 2.8 GHz Xeon™ Processors at 533 MHz FSB with HyperThreading technology for blistering processing power. • 1+1 redundant, hot-swappable 550 Watts power supplies.
ACER ASC Express Features • Up to 730 GB internal storage / Up to 2 TB with external storage enclosure. • Mirroring: Protects against device/cabinet/frame level failure for any Acer Altos NAS 700 managed disk • Snapshot/Timemark: Max 4 times of incremental backup scheduled through the day that provide easy data restoration without having to access tape, with limited utilization of time and space .
Qlogic 2340 (Optional Fibre Channel HBA Controller) The Qlogic QLA234x controllers bring the latest in Fibre Channel 2 (FC2) technology, doubling speeds from 1Gbps to 2Gbps. The Controller provides multipath and failover capability (when using QLA 2340 or two QLA 2342 Controllers). Each Controller provides an LC cable connector to easily connect to Fibre channel Switches or directly to the Altos S700F or S205F Storage.
INSTALLATION AND CONFIGURATION General Installation Sequence 1) Install the HBA in your ALTOS NAS 700 appliance 2) Connect your ASC NAS 700 appliance to your storage network 3) Linux 7.3 installation through a: a. Recovery image b. Manual installation 4) ASC Server installation 5) ASC Management Console installation 6) ASC SAN Client installation 7) Configure ASC SAN Resources 8) Assign a SAN Resource to one or more client.
Drive. 6. Choose the RAID Level (in this case RAID 1) and select the size of your first LUN. We recommend to create a LUN with the size of 8000 MB. You can also select the full size for your O.S mirror. Confirm the Logical Drive by using the Enter key 7. Please select now the remaining disk and create a RAID5 logical drive for your ACER altos NAS 700 Data storage. 8. After you are done do not forget to initialise the Logical Drives.
A) Red Hat Linux 7.3 installation using the Recovery Image Introduction ACER provides on the ASC 4.0 Express cdrom, a Norton Ghost image to restore the Linux 7.3 operating systems necessary to install later ASC 4.0 server on the ACER Altos NAS 700 Appliance. ACER recommends our solution partners to use this image to install the Linux Operating system. The file can be found in the IMAGE folder of the cdrom and is called: "linux.GHO".
So just click on the REMOVE CONFIGURATION button to remove a device. Then click on the CONFIGURE button to add a newly detected device.
There’re some specific tasks to do when you add the ATI Rage XL (graphics adapter): • Select your Monitor specs (automatic if your monitor is Plug and Play) • Select the Video Memory: the ATI Rage XL has 8 MB • Select “No clockchip settings (recommended)” • Click OK to test your Graphics configuration under X Window. • If you see a message displayed on screen, just click YES. Then, select the automatic startup of X Window when asked by the system. The default password for Linux 7.
B) Red Hat Linux 7.3 manual installation This section is for information only 1. Boot from the RedHat Linux CD and hit to begin the installation. 2. On the welcome screen, click NEXT to go to the next step. 3. Select the installation language and click NEXT. 4. On this page, select your keyboard language and click NEXT. 5. Select your mouse configuration and click NEXT 6. Select CUSTOM as installation Type and click NEXT.
7. Disk Partitioning Setup: Select “Have the installer automatically partition for you” and click NEXT. 8. Disk Setup. Verify that the swap partition is smaller than 2000 MB. (Max size for Linux 2.4 kernel). If it’s larger than 2000MB, Select the Swap partition, press “EDIT” to reduce the value and then click NEXT. 9. Use GRUB as the boot loader (default setting) and click NEXT to continue.
10. The GRUB password is not mandatory. Leave the field blank if you don’t want to protect the access to your boot loader. Click NEXT to continue the installation. 11. On this page you can configure the TCPIP parameters for your 2 built-in network cards. ACER recommends to configure and activate on boot only the first network card called eth0.
On this page, select No Firewall and click NEXT. 13. Additional Language Support Selection. Here you can select an additional language support for your Linux Graphical interface. ACER recommends to use only English. Click NEXT to continue. 14. Time Zone Selection: select the proper location (instead of UTC offset). 15. Account Configuration. Setup the root password on this page and you can also add other users. 16. Authentication Configuration.
X Windows system GNOME Network Support NFS File Server Anonymous FTP Server Web Server Networked Managed Workstation Utilities Check the “Select individual packages” icon and then click NEXT. Select Flat view to have a look at the full listing of packages that will be installed on your server. In this listing, please verify that the following packages are selected: Netscape-common Netscape-communicator Netscape-navigator 18. In the Video Configuration page, select ATI Rage XL and click NEXT. 19.
20. On this screen, you can see the installation of the different packages on your system. The installer will ask you to insert the second and third CD of your Linux Red Hat distribution. 21. On the “Boot Disk Creation” mark the Skip boot creation box and click NEXT to continue the installation. 22. Select your monitor in the manufacturer list or select “Unprobeb Monitor” if not found. Then click Next.
23. Custom X configuration. On this screen, configure a standard graphic resolution such as 1024*768 * 16 bits (65536) colors. Click NEXT. 24. Congratulations Screen. When you reach this screen, the Linux installation is finished. Click on EXIT to reboot your Server and start Linux 7.
ASC Server installation 1. After the Linux installation, you must enter into the BIOS by pressing F2 and check that your boot order is configured as shown in the picture below: We recommend to have the Hard Drive selected as 1st Boot Device on your Altos NAS 700. 2. Select “Red Hat Linux (2.4.18-3smp)” to boot Linux. 3.
4. Close the START HERE window. Right-click on the desktop and select NEW TERMINAL. 5. In this Terminal window, please type the following command to mount your ASC cdrom: A Nautilus window appears listing the content of the ASC 4.0 CD. Just close it. 6. In the terminal window, type the following command to run the script that will perform the required updates to your Linux operating system and launch the ASC 4.0 installer: The script will modify the following information: 2.4.
8. The script checks to see if ASC is already installed on your machine. Press Y to continue the ASC installation. 9. Type your company name and press 10. Enter the server name eg. NAS700 and press 11. ACER recommends to install the ASC Management Console on the ASC server.
12. On this page, the cards located in the ASC Server must be selected to run the installation of the drivers. Select 2, 6 and 7. When the selection is finished, press the F key to continue the installation. 13. If Qlogic HBA is selected on the prvious step, please press 2 and F to continue the installation. If not, press 6 and F to continue the installation.
14. Linux supports multiple LUNs on the same SCSI ID. In this menu, select the number of LUNs you want to use. The default value is 32. 15. Now, you can setup the maximum number of disks you want to scan.
16. The installer offers you the possibility to install several network services such as Telnet, FTP and NTP. These components are all enabled by default. Please deselect “NTP (Network Time Protocol)” by typing 3 and F. Then press 17. The next screen shows a summary of the configuration that has been selected before. Press Y to accept the current configuration.
18. A message appears asking the user to wait for a moment during the automatic installation. No user interaction is required now until installation is complete. 19. When the script has finished updating the Linux kernel, it reboots your ASC server and a new boot option is added in your GRUB boot loader.
20. When the server boots, the Hardware discovery utility named KUDZU starts. Press to go to the next screen. 21. KUDZU has detected new installed devices in your ASC server and asks if you want to configure the new devices or simply ignore them. Here we can see it has detected a Broadcom BCM5700 network card. Click on the “CONFIGURE” button. 22. On the next screen, click on “YES” to configure the first network card. Note: Configure and setup the first network adapter called ETH0.
23. On this page, you must enter the TCPIP information for the new detected network card. You can select between a dynamic (if you already have a DHCP server running on your network) and a static IP configuration. For the latter case, you must manually enter all the information such as : • IP address of the ASC server, • Subnet Mask of the ASC server, • Network Default Gateway, • IP address of the DNS server 24.
Note: Please make sure you have the CD still in the CD-ROM Drive at this time to allow the setup process to complete. Congratulations. You have successfully completed the installation of ASC Server. You can now install the ASC Management Console on your Workstation to manage and configure the ASC server remotely. Please refer to the User Guide chapter 2 for the installation instructions for the ASC Console.
ASC Management Console installation The ASC Management Console is the administrative tool that allows ASC administrators to create, configure, manage, and monitor the storage resources on the ASC storage network. The ASC Management Console is a Java application that can be run on many Windows, Linux, and Solaris platforms that support the Java 2 Runtime Environment (JRE). Pre-Requisite. The computer that runs the Console needs connectivity to the Storage Network segment.
Installation on Linux. For Linux, you will need to manually install the ASC Console. To install the Console software, log into your system as the root user. Mount the ASC installation CD to an available or newly created directory and copy the files from the /Console/Linux directory on the CD to a temporary directory.
ASC SAN Client installation ASC SAN Clients access their storage resources via software-emulated virtual adapters (for SAN/IP). The storage resources appear as locally attached devices to the SAN Clients’ operating systems (Windows NT, Windows 2000, Linux, etc.) even though the SCSI devices are actually located at the ASC Server.
Pre-installation checklist ASC provides client software for many platforms and protocols. Please check the following lists for the versions and the patch levels (if applicable) that are currently supported. While this information is accurate as of the date of its release, you should check the certification matrix on the Acer website for any updates. Notes: • The ASC Client should not be installed onto a networked drive.
ASC SAN Clients Supported Platform SAN/IP Client The following platforms are supported for SAN/IP clients: Platform Supported version Windows NT 4.0 Enterprise Edition with Service Pack 6a. Windows 2003 Standard Server and Enterprise Server Windows 2000 - Professional, Server, Advanced Server, and Datacenter, including Service Pack 2, 3, or 4. - Supports Windows 2000 Clustering Red Hat Linux Advanced Server v2.1 - Kernel 2.4.9-e.9smp - Kernel 2.4.9-e.12smp - Kernel 2.4.9-e.16smp - Kernel 2.4.
NetWare NetWare 5.1 with Service Pack 6. Make sure NSS is running. NetWare 6.0 with Service Pack 3. Make sure NSS is running. You must have a separate Ethernet adapter for storage that is placed on a dedicated subnet. Although it is OK to use a 10/100 NIC, it is preferable to use a gigabit NIC. iSCSI client The following platforms are supported for SAN/IP clients: Platform Supported version Windows 2003 Standard Server and Enterprise Server. Windows XP With Service Pack 1 or higher.
SAN/IP Client installation on Windows NT, 2000 and 2003. You must be an administrator or have administrator privileges in order to install the client. • Insert the ASC installation CD into your CD-ROM drive. • Select Install Products --> Install ASC SAN Client. • If the CD browser does not launch, navigate to the \Client\Windows directory and run ISinstall.exe to launch the client install program.
• Type the following command to install the client software: rpm -i /mnt/cdrom/Client/Linux/sanclient-4.00-0.883.i386.rpm • The client will be installed to the following location: /usr/local/sanclient • Log into the client machine as the root user again so that the changes in the user profile will take effect.
• ISCMD Start Server=serverIPAddress • When prompted, enter your username and password. • Type the following to scan and discover the ASC disk: • If you have not done so before, use NWCONFIG (NetWare 5.1), ConsoleOne or web portal (NetWare 6.0) to create a NetWare volume on the ASC SAN/IP device.
ASC MANAGEMENT CONSOLE The ASC Console is the administration tool for the ASC storage network. It is a Java application that can be used on a variety of platforms and allows ASC administrators to create, configure, manage, and monitor the storage resources and services on the ASC storage network as well as run/view reports, enter licensing information, and add/delete ASC administrators. Start the ASC Management Console On Windows, select Start --> Programs --> Acer ASC --> ASC Console.
ASC Management Console User interface The ASC Management Console displays the configuration for the ASC Servers on your storage network. The information is organized in a familiar Explorerlike tree view. The tree allows you to navigate the various ASC Servers and their configuration objects. You can expand or collapse the display to show only the information that you wish to view. • To expand an item that is collapsed, you can click on the • symbol next to the item.
ASC Server This display shows the configuration and status of the ASC Server. Configuration information includes the version of the ASC Server software and base operating system, the type and number of processors, amount of physical and swappable memory, supported protocols, and network adapter information. Discovery ASC Servers ASC can automatically discover all ASC Servers on your storage subnet. • Select Tools --> Discover ASC • Servers. • Enter your network criteria.
Server statistics To display memory and CPU usage for a server, select the Statistics tab. You can turn the statistics on/off by right-clicking on the server and selecting either Statistics --> Start or Stop. • Open Tools • Select prompted.
Save & Restore an ASC Server configuration ASC provides a convenient way to protect your ASC configuration. This is useful for disaster recovery purposes, such as when an ASC Server is down but you have the storage disks and want to use them to build a new ASC Server. In this case, after importing all disks from the original server, you would restore your ASC configuration, including SAN and NAS client information and the names of your resources.
Restore configuration You can restore an ASC Server configuration from a file that was created using the Save Configuration option. This is for disaster recovery purposes and should not be used in day-to-day operation of the server. Changes made since the configuration was last saved will not be included in this restored configuration. Warning: Restoring a configuration will overwrite existing virtual device and client configurations for that server. ASC partition information will not be restored.
Licensing When you first install ASC, you are given a 45-day live trial period. After that period, you must purchase ASC and its options to continue using the product. To license ASC: • Obtain your ASC keycode(s) from Acer or its representatives. • In the Console, right-click on the server and select License. • The License Summary window is informational only and displays a list of the options supported for this server. You can enter keycodes for your purchased options on the Keycode Detail window.
Set Server Properties To set properties for a specific server: • Right-click on the server and select Properties. The tabs you see will depend upon your ASC configuration. • If you have multiple NICs (network interface cards) in your server, enter the IP addresses using the Server IP Addresses tab. If the first IP address stops responding, the ASC clients will attempt to communicate with the server using the other IP addresses you have entered in the order they are listed.
- The client becomes aware of the multiple IP addresses when it initially connects to the server. Therefore, if you add additional IP addresses in the Console while the client is running, you must rescan devices (Windows clients) or restart the client (Linux/Unix clients) to make the client aware of these IP addresses. • On the Activity Database Maintenance tab, indicate how often the SAN data should be purged.
• On the SNMP Maintenance tab, indicate which types of messages should be sent as traps to your SNMP manager Five levels are available: o None – (Default) No messages will be sent. o Critical - Only critical errors that stop the system from operating properly will be sent. o Error – Errors (failure such as a resource is not available or an operation has failed) and critical errors will be sent.
• On the iSCSI tab, iSCSI users can change the port number. The settings on this tab affect system performance during mirror resynchronization and replication. The defaults should be optimal for most configurations. You should only need to change the settings for special situations, such as if your mirror is remotely located. During mirror resynchronization: Use [2] outstanding commands of [64] KB The number of commands being processed at one time and the I/O size.
Manage Administrators accounts & Password Manage accounts To set properties for a specific server: • Only the root user can add or delete an ASC administrator or change an administrator’s password. • Right-click on the server and select Administrators. There are several types of administrators: - ASC Administrators are authorized for ASC client authentication and Console access. - ASC Clients are authorized for ASC client authentication only. They do not have Console access.
Select the appropriate option. When you add an administrator, the name must adhere to the naming convention of the operating system running on your ASC Server. Refer to your operating system’s documentation for naming restrictions. You cannot delete the root user or change the root user’s password from this screen. Use the Change Password option below. Change your administrator password This option lets you change your own ASC password if you are currently connected to a server.
System Maintenance The ASC Management Console gives you a convenient way to perform system maintenance for your ASC Server. Note: The system maintenance options are hardware-dependent. Refer to your hardware documentation for specific information. Deactivate system partition Right-click on a server and select System Maintenance --> Deactivate System Partition to deactivate the system partition. You might want to do this if your existing partition is too small and you want to recreate it.
Domain name - Internal domain name. Append suffix to DNS lookup - If a domain name is entered, it will be appended to the machine name for name resolution. DNS - IP address of your DNS server. Default gateway - IP address of your default gateway. NIC - List of Ethernet cards in the server. Enable Telnet - Enable/disable the ability to Telnet into the server. Enable FTP - Enable/disable the ability to FTP into the server. Allow root to log in to telnet session - Log in to your telnet session using root.
Jumbo Frame Definition In 1998, Alteon Networks, Inc. promoted an initiative to increase the maximum size of the MAC Client Data field from 1500-bytes to 9000-bytes. Larger frames would provide a more efficient use of the network bandwidth while reducing the number of frames that have to be processed. Software update Right-click on a server and select System Maintenance --> Software Update to locate a software package that you can update. This option is only valid for ASC embedded appliances.
Physical resource When you highlight Physical Resources, the right-hand pane displays the SCSI addresses (comprised of adapter number, channel number, SCSI ID, LUN) of your devices. The SCSI adapters tab displays the adapters attached to this server and the SCSI Devices tab displays the actual SCSI devices attached to this server. These devices can include hard disks, tape drives, device libraries, JBOD and RAID cabinets. Note that some multi-channel SCSI adapters may appear as multiple adapters.
Reserved for direct device - A SCSI device, such as a hard disk, tape drive or library that has not yet been assigned as a SAN Resource. Used in direct device - A directly mapped SCSI device, such as a hard disk, tape drive or library, that is being used as a direct device SAN Resource. Reserved for service enabled device - A hard disk with existing data that has not yet been assigned to a SAN/NAS Resource.
SCSI aliasing With ASC, you can eliminate a potential point of failure in your storage network by providing multiple paths to your storage devices using multiple Fibre Channel switches and/or multiple adapters and/or storage devices with multiple controllers. In a multiple path configuration, ASC automatically detects all paths to the storage devices. If one path fails, ASC automatically switches to another.
Rescan adapters To rescan all adapters and search for new devices, right-click on Physical Resources and select Rescan. (Linux only) If you only want to scan a specific adapter, right-click on that adapter and select Rescan. Set the range of SCSI IDs and LUNs that you want to scan. For Linux, the Sequential option works in conjunction with the LUN range. You should only use it if all of your devices are numbered sequentially, because scanning will stop once the last sequential device is found.
Import a disk You can import a ‘foreign’ disk into an ASC Server. A foreign disk is a virtualized physical device containing ASC logical resources previously set up on a different ASC server. You might need to do this if an ASC Server is damaged and you want to import the server’s disks to another ASC Server. When you right-click on a disk that ASC recognizes as ‘foreign’ and select the Import option, ASC scans the disk’s partition table.
Logical Resources Logical resources are all of the resources defined on the ASC Server, including SAN Resources, NAS Resources, Replica Resources, and Snapshot Groups. SAN and NAS logical resources consist of sets of storage blocks from one or more physical hard disk drives. This allows the creation of logical resources that contain a portion of a larger physical disk device or an aggregation of multiple physical disk devices.
In addition, when you highlight a SAN or NAS Resource, you will see a GUID field in the right-hand pane. The GUID (Global Unique Identifier) is the permanent identifier for this virtual device. The virtual ID, SANDisk-00002, is not. You should make note of the GUID, because, in the event of a disaster, this identifier will be important if you need to rebuild your system and import this disk. Replica Resources are replica disks that are being used by a remote server.
ASC SAN Clients ASC SAN Clients are the actual file and application servers that utilize the storage resources via the ASC Server. These SAN Clients access their storage resources via software-emulated virtual adapters (for SAN/IP) . The storage resources appear as locally attached devices to the SAN Clients’ operating systems (Windows NT, Windows 2000, Linux, Solaris, etc.) even though the SCSI devices are actually located at the ASC Server.
The Resources tab displays a list of SAN Resources that are allocated to this client. The adapter, SCSI ID and LUN are relative to this ASC SAN client only; other clients that may have access to the SAN Resource may have different adapter SCSI ID and LUN information. Change the ACSL You can change the ACSL (adapter, channel, SCSI, LUN) for a SAN Resource assigned to a SAN client if the device is not currently attached to the client.
ASC NAS Clients ASC NAS Clients are the users and groups that access NAS resources via the ASC Server. There are two types of NAS clients you will see: • Windows clients - These clients use the Common Internet File System (CIFS) protocol to work together and share documents. Because many operating systems support CIFS, it is possible to have clients using other operating systems listed as Windows clients.
Information on the Connection(s), Share(s), and Locked File(s) tabs is updated every few seconds. You can set the interval by right-clicking on the Windows Clients object and selecting Start Connection Status Refresh. Refer to ‘NAS Configuration’ for more information about NAS and authentication modes for Windows clients.
Console Options To set options for the Console: Select Tools --> Console Options. Make any necessary changes. Remember password for session - If the Console is already connected to a server, when you attempt to open a second, third, or subsequent server, the Console will use the credentials that were used for the last successful connection. If this option is unchecked, you will be prompted to enter a password for every server you try to open.
The options affect how information for each Console session will be maintained: Overwrite log file - Overwrite the information from the last Console session when you start a new session. Append to log file - Keep all session information. Do not write to log file - Do not maintain a Console log. Create custom menu You can create a menu in the ASC Management Console from which you can launch external applications.
Menu Label - The application title that will be displayed in the Custom menu. Command - The file (usually an.exe) that launches this application. Command Argument - An argument that will be passed to the application. If you are launching an Internet browser, this could be a URL. Menu Icon - The graphics file that contains the icon for this application. This will be displayed in the Custom menu.
CONFIGURE ASC SAN RESOURCES Once you have physically attached your physical SCSI/Fibre Channel devices to your ASC Server you are ready to create SAN Resources to be used by your ASC SAN Clients. This configuration can be done entirely from the ASC Console. Understanding how to create and manage SAN Resources is critical to a successful ASC storage network. Please read this section carefully before creating and assigning SAN Resources.
When a virtual device is allocated to an application server, the server thinks that an actual SCSI storage device has been physically plugged into it. Virtual devices are assigned to virtual adapter 0 (zero) when mapped to a client. If there are more than 15 virtual devices, a new adapter will be defined. Note: We do not recommend storing system files, page files, swap files, etc. on ASC virtual devices.
This example shows a single physical disk split into two virtual devices. This is useful when a single large device exists, such as a RAID, which could be shared among multiple client application servers. Virtual devices can be created using various combining and splitting methods, although you will probably not create them in this manner in the beginning. You may end up with devices like this after growing virtual devices over time. Direct devices Direct devices are directly mapped SCSI devices.
Service enabled devices Service enabled devices are hard drives with existing data that can be accessed by ASC to make use of all key ASC storage services (mirroring, snapshot, etc.), without any migration/copying, without any modification of data, and with minimal downtime. Service enabled devices are used to migrate existing drives into the SAN. Because service enabled devices are preserved intact, and existing data is not moved, the devices are not virtualized and cannot be expanded.
Procedure to create SAN resources SAN Resources are created in the ASC Console. Note: After you make any configuration changes, you must restart the client in order for the changes to take effect. For Windows clients, if you add or delete SAN Resources you can use the Rescan option in the SAN Client Monitor instead. For other changes, you will still need to restart the client.
Create a virtual device SAN Resources Note: Each ASC Server supports a maximum of 1024 SAN Resources. Right-click on SAN Resources and select New. Select Virtual Device.
Select how you want to create this virtual device. Custom lets you select which physical device(s) to use and lets you designate how much space to allocate from each. Express lets you designate how much space to allocate and then automatically creates a virtual device using all available devices. Batch lets you create multiple SAN Resources at one time. These SAN Resources will all be the same size.
If you select Custom, you will see the following windows: Select either an entirely unallocated or partially unallocated device. Only one device can be selected at a time from this dialog. To create a virtual device SAN Resource from multiple physical devices, you will need to add the devices one at a time. After selecting the parameters for the first device, you will have the option to add more devices. Indicate how much space to allocate from this device.
If you select Batch, you will see the following window: Select either an entirely unallocated or partially unallocated device. Indicate how to name each resource. The SAN Resource Prefix is combined with the starting number to form the name of each SAN Resource. You can uncheck the Use default ID for Starting Number option to restart numbering from one. In the Resource Size field, indicate how much space to allocate for each resource.
Confirm that all information is correct and then click Finish to create the virtual device SAN Resource. (Express and Custom only) Indicate if you would like to assign the new SAN Resource to a client. If you select Yes, the Assign a SAN Resource Wizard will be launched. Note: After you assign the SAN Resource to a client, you will need to restart the client (for Windows clients, you can rescan devices from the SAN Client Monitor instead).
the original physical disk instead of treating it as a Acer device. This can be useful for vendors who only recognize their own storage devices. Select how you want to create this device. Custom lets you select one physical device(s) to use. Batch lets you create multiple SAN Resources at one time. Select the device that you want to make into a direct/service enabled device. A list of the physical resources that have been reserved for this purpose are displayed.
Even though service enabled devices are used as is, a virtual header is created on another physical device to allow ASC’s storage services to be supported. Enter a name for the new SAN Resource. Note: The name is not case sensitive.
Confirm that all of the information is correct and then click Finish to create the SAN Resource. Indicate if you would like to assign the new SAN Resource to a client. If you select Yes, the Assign a SAN Resource Wizard will be launched. Assign resources to one or more clients Notes: The wizard can also be launched from the Create SAN Resource wizard. If this server has multiple protocols enabled, select the type of client to which you will be assigning this SAN Resource.
Select the SAN Resource to be assigned. Read/Write - Only one client can access this SAN Resource at a time. All others (including Read Only) will be denied access. This is the default. Read/Write Non-Exclusive - Two clients can connect at the same time with both read and write access. You should be careful with this option because if you have multiple clients writing to a device at the same time, you have the potential to corrupt data.
For SAN/IP clients, you will see the following screen: If the SAN/IP client that you want to assign to the SAN Resource does not appear on the list, click the Add button. You can add any application server, even if it is currently offline or has not yet had ASC Client software installed. However, in order for the server to use the ASC storage resources, you must install the ASC SAN Client software on the server and “authorize” the client’s access to the ASC SAN resources.
For iSCSI clients, you will see the following screen: Acer Altos® NAS 700 Solution Guide 88
Assign a client to one or more SAN Resources Notes: Right-click on a SAN Client and select Assign. Select the SAN Resource to be assigned. Read/Write - Only one client can access this SAN Resource at a time. All others (including Read Only) will be denied access by default. Read/Write Non-Exclusive - Two clients can connect at the same time with both read and write access.
Expand a virtual device Once owner and fail back timing. Since virtual devices do not represent actual physical resources, they can be expanded as more storage is needed. The virtual device can be increased in size by adding more blocks of storage from any unallocated space from the same server. Note that you will still need to repartition the virtual devices and adjust/create/resize any file-systems on the partition after the virtual device is expanded.
Right-click on a virtual device (SAN or NAS) and select Expand. Select how you want to expand the virtual device. Custom lets you select which physical device(s) to use and lets you designate how much space to allocate from each. Express lets you designate how much space to allocate and then automatically creates a virtual device using all available devices. The Size to Allocate is the maximum space available on all available devices.
If you select Custom, you will see the following windows: Confirm that all information is correct and then click Finish to expand the virtual device.
Windows 2000 Dynamic disks Expansion of dynamic disks using the Expand SAN Resource Wizard is not supported for clients using either SAN/IP. Due to the nature of dynamic disks, it is not safe to alter the size of the virtual device. However, dynamic disks do provide an alternative method to extend the dynamic volume. To extend a dynamic volume using SAN Resources, use the following steps: • Create a new SAN Resource and assign it to the ASC Client.
Delete a SAN Resource If the ASC device is removed while logical volumes exist, you will not be able to remove the logical volumes and the system will display error messages. • Detach the SAN Resource from any client that is using it. • For Windows clients, launch the ASC SAN Client Monitor and click the Stop Client button. • For other clients, type ./sanclient • In the Console, highlight the SAN Resource, right-click and select Delete.
MANAGE ASC SAN CLIENTS ASC SAN Clients are the file and application servers that access ASC SAN Resources. Since SAN Resources appear as locally attached SCSI devices, the applications, such as file services, databases, web and email servers, do not need to be modified to utilize the storage. On the other hand, since the storage is not locally attached, there is some configuration needed to locate and mount the required storage.
ASC SAN Client on Linux All configuration of the Client is done through the ASC Console. Once configured, the ASC SAN Client software connects to the appropriate ASC Servers and gets its assigned resources. Note: If you assign additional resources to the Client from a new Server after you have installed the Client, you will need to add that Server to the Client. You will also need to restart the Client in order for the changes to take effect.
• If you are adding a Server, enter the ASC Server name, login name (hostname or root user name), and password. • If you are deleting a Server, you should back up /usr/local/sanclient/etc/ipstorclntd.conf before proceeding. After you have done that, enter the Server name that you want to delete. • If you want to view the Client’s configuration, enter the login ID and password for the Client. The Client must be started to view the configuration.
Add/delete/expand a virtual drive You can add a virtual device to an existing adapter, delete a virtual device, or expand a virtual device without having to restart your Linux or Solaris 8 Client. You can also expand a virtual device without having to restart your Solaris 6 or 7 Client (add or delete requires a restart). • With the Client running, make sure that the virtual device to be expanded or deleted is NOT in use. • The disk cannot be mounted or have any files open.
ASC SAN Client on Windows NT/2000/2003 Once installed, the ASC SAN Client software runs as a Windows NT/2000 service. The service is configured to start automatically when Windows starts. The configuration of the storage resources used by the Client is done through the ASC Console. Once configured, the ASC SAN Client software connects to the appropriate ASC Servers and gets the assigned resources.
In order to see information about a Server and its devices, you must be connected to the Server. When you start the Monitor, it attempts to connect to each Server. If it cannot connect to a Server, you will see a red X on the Server. Refresh the Monitor display The statistics in the right-hand pane are refreshed automatically, based on the time interval you set under Options . If you have formatted any devices, click the Refresh button partition, file system, and size information.
Stop and start the client Stop the Client Stopping the Client services will detach the virtual devices and direct devices in use by the Client, allowing the ASC administrator to manage or modify the SAN Resources safely. Note: Before stopping the Client, make sure all read/write operations are complete. Start the Client Starting the Client services re-establishes the connection to all of the ASC Servers and attaches to the SAN Resources assigned to this Client.
Add an ASC Server Click the Add Server button. This starts a wizard that will guide you through the process. Enter the name of the ASC Server. Enter the IP address.
The IP address and port are used for configuration and system maintenance commands. The communication takes place over TCP and is used to connect to the Server. Enter the Client’s hostname or root user name and password. When you click Finish, the Client connects to the Server, verifies the user name and password, and authorizes the Client to use Resources from that Server.
Delete a Server You can delete one or more Servers. If you delete a Server, the Client will no longer be able to access storage through that Server. Click the Delete Server button . Select one or more ASC Servers and click OK.
Organize Servers This option lets you add and delete Servers as well as edit the address and login information for each Server. You can also rearrange the order of Servers listed in the Monitor. You may also want to use this option if the Client is not currently connected but you want to see the list of Servers to which it normally connects. Click the Organize Servers button . Select the function you would like to perform. Add - Add a new ASC Server. Remove - Remove an ASC Server from the Client.
Set dependent services to start after ASC services If you have applications running on your Client Machine (such as Microsoft IIS, Exchange, or SQL Server) that access your SAN storage resources, you must make sure that the ASC services are started before these application’s services start. To do this: Click the Dependent Services button . Add the services that should only start after ASC starts.
Register tape devices for use with backup software You must register your tape drives and libraries if your backup software requires the drivers for these devices be loaded prior to loading the backup software. Once you register a device and reboot, ASC loads the device drivers when ASC starts. To register a device: • Right-click on the tape drive or library and select Register. • Reboot your computer.
Filter Event Viewer information and set client options You can configure the amount of detail about the ASC Client’s activity and performance that will be written to the Windows Event Viewer. You can also enter domain information and enable a system tracer. You can also determine if you want the Client to automatically start when this computer starts and how often to refresh information in the Monitor. Click the Options button Select the Domain tab, and if applicable, enter information about your domain.
Select the Log tab. To filter the events being written to the Event Viewer, select one of the levels in the Log Level field. Note that regardless of which level you choose, there are several events that will always be written to the Event Viewer (driver not loaded, service failed to start, service started, service stopped). Five levels are available for use: Off – No activity will be recorded. Errors only – Only errors will be recorded. Brief – Errors and warnings will be recorded.
ASC SAN Client on NetWare Start the client You can start the client by typing the following command from the NetWare console screen to start the client: Sanon ISCMD Start Server=serverIPAddress When prompted, enter your username and password. Type the following to mount your volumes: Mount all If you change a LUN or add a device, you will need to restart the Client in order for the changes to take effect.
Type the following: ISCMD Remove server=serverIPAddress In the ASC Console, right-click on the SAN/IP client, unassign the device, and then delete the client. To uninstall the client, refer to the sanon.ncf file in the sys:\system directory to find the files that need to be removed. Disk copies If you mirror, copy, or replicate a virtual device you cannot assign the copy to the same client to which the primary is assigned unless you first rename the Novell volume to a different name.
Uninstall a SAN client Do the following to uninstall SAN Client software: Operating System Command/Instructions Windows NT / Windows 2000 You can use Add/Remove Programs from the Control Panel or: 1. Insert the ASC installation CD in to your CD-ROM drive. 2. Select Install Products --> Install ASC SAN Client and follow the on-screen instructions to uninstall the Client. If you will be installing a newer version of the Client software, you will have to reboot the machine during the un-install process.
MANAGE THE ASC SERVER The ASC Server is a storage server designed to require little or no maintenance. All day-to-day ASC administrative functions can be performed through the ASC Console. However, there may be situations when direct access to the Server is required, particularly during initial setup and configuring of physical storage devices attached to the Server or for troubleshooting purposes.
Stop the ASC Server Warning: Stopping the ASC Server processes will shut down all access to the storage resources managed by the Server. This can halt processing on your application servers, or even cause them to crash, depending upon how they behave if a disk is unexpectedly shut off or removed. It is recommended that you make sure your application servers are not accessing the storage resources when you stop the ASC Server processes.
Log into the ASC Server You can log in directly from a keyboard/display connected directly to the Server. There is no graphical user interface (GUI) shell required. By default, the root user is the only user that has login privileges to the operating system. Other ASC administrators do not. To log in, enter the username and the password for the root user. Warning: You should not allow login access to your ASC Server to anyone except your most trusted system or storage administrators.
Check the ASC Server processes You can type the following command from the shell prompt to check the ASC Server processes: cd /usr/local/asc/bin .
Check physical resources When adding physical resources or testing to see if the physical resources are present, the cat /proc/scsi/scsi command can be executed from the shell prompt in Linux: These commands display the SCSI devices attached to the ASC Server.
NAS CONFIGURATION Network Attached Storage, or NAS, is another piece of the storage management picture. NAS refers to storage and data that can be accessed directly from the storage network and represents a quick and easy way to add general purpose, shareable, storage space for users and groups. With NAS, users can access data and storage via a network interface using protocols including NFS (Network File System) and CIFS (Common Internet File System).
All NAS configuration is done through the ASC Console and can be found under the NAS Resources and NAS Clients objects in the tree. Note: If you do not see the NAS objects, the NAS option is not loaded on your ASC Server. To enable it, you will need to start the Console, connect to this server, right-click on the server and select Options --> Enable NAS. When you highlight the NAS Resources object, a list of current NAS Resources is displayed in the right pane.
Information on the Connection(s), Share(s), and Locked File(s) tabs is updated every few seconds. You can set the interval by right-clicking on the Windows Clients object and selecting Start Connection Status Refresh. General NAS configuration sequence The configuration of NAS requires several steps that are outlined below: 1. Prepare for authentication.
Prepare for authentication There are three security modes that you can use to authenticate users/groups trying to access NAS shares. Share mode - Authentication is done by a set of passwords (one full access password and one read only password) that are set from the Console. This mode does not use an authentication server.
The authentication modes are summarized in the following table: Domain Mode Server Mode Share Mode Requires an Yes. Authentication server Yes. Any server, authentication must be a PDC/Domain including a Domain No server. Controller. Controller. Requires ASC Yes No No Yes Retrieves user No Server & NAS clients to belong to the domain. ASC Server retrieves user and information. Will group accounts retrieve group from information if authentication authentication server is server.
Active Directory If your Domain controller is running Windows 2000 Server, the ASC Server can be configured to utilize Microsoft’s Active Directory to obtain users and groups. Both Domain and Server security modes can make use of Active Directory. If you will be using Active Directory, you will need the following: • Account for ASC - This account should have minimal security, similar to that of the guest account (do not use an Administrator account or User with administrator rights).
Network Information Service (NIS) The ASC Server can be configured to utilize the Network Information Service (NIS) to obtain a list of users and groups. If you will be using NIS, you will need to install and configure the NIS client on the ASC Server. On Linux Red Hat v7.3 1. From the ASC Server, type: domainname X where X is the domain name (Example: acer.com) 2. Edit the /etc/hosts file and add the following information: NIS_server_IP NIS_server_name For example: NIS_server_IP NIS_server_name 3.
command: getent passwd This command should return a user list from the ASC Server and the NIS server. Notes: • If the NIS client is rebooted, you need to repeat steps 1 and 5 to start the NIS client. • To stop using the NIS client type: killall ypbind.
Enable NAS 1. In the Console, right-click on the server and select Options --> Enable NAS. 2. Select which security mode you will use to authenticate users/groups. There are three security modes that you can use to authenticate users/groups trying to access NAS shares. Share mode - (Default) Authentication is done by a set of passwords (one full access password and one read only password) that are set from the Console. This mode does not use an authentication server.
share assignments. For more information about authentication modes, refer to Prepare for authentication. 3. (Domain and Server modes) Enter your authentication servers and domain information. Primary Authentication Server - Enter the name of the server (not an IP address) from which the ASC Server will get the user account information. The ASC Server will use this server to authenticate users when they try to share a NAS resource. The server's name must be resolvable.
4. (Domain and Server modes with Active Directory) Enter information about the account ASC will use to log into Active Directory. User - Enter the account ASC will use to log into Active Directory. Password - Enter a valid password for this account. Confirm Password - Re-enter the password for this account. Bind Point - You can use the Bind Point to mark where in the OU tree ASC will start browsing from. This is useful if ASC’s user account does not have root access to the entire OU tree.
5. Click in the checkbox next to the OUs to which you want to offer NAS shares. If you select the checkbox next to the root (/), it will select all OUs.
6. (Share mode) Enter the workgroup that the ASC Server must join. Enter the existing workgroup of your ASC Server or you can group all of your ASC Servers in a new workgroup. This can be useful for locating your ASC Servers in your Windows Explorer. 7. (All authentication modes) Enter a comment and the applicable client code page.
Comment - Enter a description of the ASC Server. This description will be displayed in the Comment field of Windows Explorer, such as when you see a list of computers under My Network Places. Client Code Page - Specify the DOS code page that clients accessing Samba are using. To determine what code page a Windows client is using, open a DOS command prompt and type the command chcp. This will output the code page. (All authentication modes) Select how you want to reserve User IDs.
UIDs are associated with users on your system (such as administrators). Auto Selection lets you set the maximum number of UIDs that ASC should use for authentication of your NAS users and then automatically reserves an unused range. Manual Selection lets you select exactly which range(s) to use. If you select this, you will need to select an available UID range and designate a starting and ending UID. 8. (Server or Domain Mode only) Select how you want to reserve Group IDs (GIDs).
Add NFS clients 1. Right-click on the NFS Clients object and select Add. 2. Enter information as applicable. Display Name - This is the name displayed in the Console for this group of one or more NFS clients. For example, you may want to enter Finance Department to indicate where these clients are located. Machine(s) - Linux:These are the machines that will become NFS clients. You can enter an abbreviated name that can be resolved, a fully qualified domain name, or an IP address for a machine.
In above example, the "/16" indicates that the first 16 bits in the address are to be used as the mask. For more information, refer to the Solaris share_nfs(1M) man page. Comment - You can optionally enter a description or explanation in this field. This information will be displayed in the right pane of the Console for this client. Create a NAS Resource The maximum number of NAS Resources that can be created is 64.
If you select Custom, you will see the following windows: Acer Altos® NAS 700 Solution Guide 135
If you select Batch, you will see the following windows: Acer Altos® NAS 700 Solution Guide 136
3. (Express and Custom only) Enter a name for the new NAS Resource. You cannot use blanks or the following characters in the resource name such as <>"&$/\'()%#:;|*`? 4. Enter information about your file system.
File System - ASC automatically detects the file systems supported by the system. If the server has the required ACL rpms installed, XFS will appear in the list; otherwise only EXT3 and EXT2 will appear. Block Size - The minimum amount of space to use for each file. For example, if you keep the default of 4, each file will minimally be 4k in size. Synchronous File I/O - Provides file system caching. If selected, there will be no file system caching.
Limit the amount of storage each Windows user can have. 1. Right-click on the NAS Resource and select Quota Manager. You can also right-click on the Users object (under Windows Clients) or on a specific Windows Client and select Set Quota. The default is zero, which means there is no limit. 2. Select one or more clients and click the Set Selected Quota button. When a Windows Client's usage hits the Soft Limit, they will be warned.
Restore quota data If you lose the quota information due to filesystem corruption or user error, you can re-apply the quota settings by right-clicking on the NAS Resource and selecting Resync Quota. Add/share a folder and assign clients You do not need to create each user’s home directory if [homes] is enabled on your ASC server. Refer to Homes for more information. 1. Right-click on a NAS Resource or a folder and select New Share. You can also select New Folder.
3. Enter a share name and indicate if you want Windows clients to have access to this share.
4. (Windows clients) Enter permissions for the Windows clients who will access the share.
If you add new Windows users/groups to your server at a later time, you can assign shared folders to them in two ways: 5. • You can right-click on the new user in the tree and select Assign Share. • You can right-click on the shared folder, select Sharing, click on the Permission button, and click on the Assign Windows Clients button. (NFS clients) Enter permissions for the NFS clients who will access the share.
If you use ASC’s Failover option, we recommend you use the Sync and No_wdelay options. If you add new NFS clients at a later time, you can assign shared folders to them in two ways: • You can right-click on the new client in the tree and select Assign Share. • You can right-click on the shared folder, select Sharing, select the NFS tab, and click the Assign NFS Client button. Map/mount the share Windows clients You should map a share for each Windows client so that they have access to the share.
NFS clients You must mount a share for each NFS client so that they have access to the share. Do the following on each NFS client’s computer: 1. Create a directory. (For example: /mnt/share) 2. Locally, mount the share. mount hostname:/nas/nasresourcename/foldername /mnt/share Note: In the path above, /nas/ is not a variable and must be included in the path. You can use the following Unix utility to list all of the shares: showmount -e 3.
Audit NAS shares You can set ASC to audit the activity in Windows NAS shares. This feature tracks when users do any of the following: • Connect/disconnect to/from a share • Create and delete directories • Open a file • Rename a file • Delete a file • Change permissions To use the auditing feature: 1. Create a NAS Resource. The audit log is a text file that contains the NAS activity.
NAS properties You can set NAS properties or update your NAS configuration settings by rightclicking on Windows Clients and selecting Properties. The tabs you will see depend upon your authentication mode. General On the General tab, you can change your comment and/or client code page and set the interval that determines how often ASC should poll the domain controller for the latest users/groups. Reserved UID/GID On the Reserved UID/GID tabs, you can select available UID/GID range(s).
Homes (Server and Domain modes only) On the Homes tab, you can set [homes] properties and select to audit all NAS shares. [homes] is a Samba feature that permits users to map to a NAS share based on their username. When you enable [homes], you do not need to create shares for each user. Instead, when the user maps to [homes] on the ASC server, a directory will be created for them based on their username.
Select the NAS resource on which the [homes] share will be located - Users will map a share on this NAS resource in one of the following ways: \\servername\homes (the system uses the username from their current login) or \\servername\username Sub-directory on which [homes] share will be mapped - This sub-directory is a folder that must already exist on a NAS resource. It becomes the root folder for the [homes] share. Shares for users are created beneath, and relative to, this folder.
TimeView should remain mounted. The TimeView will be deleted when this length of time is reached. Note: If the user is mapped to the TimeView when the length of time expires, the TimeView will be deleted and recreated. This will cause the client to lose its connection and the client will have to remap to the new TimeView. Advanced On the Advanced tab, you can change ASC’s default global Samba options.
NAS directory permissions You can set basic Unix permissions for NAS directories by right-clicking on a NAS folder and selecting Directory Properties.
NAS file information NAS clients use the shares assigned to them and, depending upon their access rights, can create, share, read, and write files/folders as necessary, keeping the following limitations/suggestions in mind: • The maximum size of each NAS Resource is dependent upon the operating system of the ASC Server. For RedHat v7.3, each NAS Resource can be up to 2 TB in size. For RedHat v7.2, each NAS Resource can be up to 1 TB in size. For Solaris UFS, each NAS Resource can be up to 1 TB in size.
NAS utilities ASC provides several utilities you can use to manage your NAS Resources. They are accessible by right-clicking on a NAS Resource and selecting the appropriate option: • Remove/Add Journal - (Linux only) For backwards compatibility purposes, Remove Journal turns an EXT3 filesystem into an EXT2 filesystem. • Format - Formats the NAS Resource and deleting all information on it.
Access Control Lists (ACLs) ACLs allow administrators to define more fine-grained access to files and directories. Instead of assigning Windows clients permissions at the share level, ACLs allow the permissions to be applied to the files and directories beneath the share. ASC currently supports POSIX ACL. If you are running ASC NAS in Server/Domain mode, you can assign a share to several users. By default, all assigned users will have full or read-only access to the entire share.
For the "UserBDirectory" directory, give UserB Full Control. For the "Everybody" directory, give both UserA and UserB Full Control. As a result, when UserA or UserB maps to the "Data" share, each user will have both read and write access to his/her own directory and the "Everybody" directory, but only read access to each other’s directory. Requirements In order to use ACLs with NAS: • The ASC Server must be running Red Hat 7.3 with 2.4.21-ipstor kernel (XFS filesystem).
Back up/restore extended attributes on Linux When you perform a file-by-file backup or restore of your NAS shares you will also want to back up/restore the extended attributes (ACL attributes and quota information). There are no special steps needed for a raw device (image/block level) backup/restore. 1. For backup: Use “getfacl -R” and “getfattr ACLs/attributes.
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