Galaxy RAID Model GHDX2-2430S-24F4D 24 bay FC-4G to SATA-II RAID Subsystem Single Controller Model GHDX2-2430R-24F4D 24 bay FC-4G to SATA-II RAID Subsystem Dual Controller Installation and Hardware Reference Manual Version 1007 Version 1.
Galaxy Raid GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual Contact Information Americas Rorke Data Inc 7626 Golden Triangle Drive Eden Prairie, MN 55344 USA Tel: +1-800 328 8147 Fax: +1-952 829 0988 sales@rorke.com techsupport@rorke.com http://www.rorke.
Galaxy Raid Installation and Hardware Reference Manual Copyright 2007 This Edition First Published 2007 All rights reserved. This publication may not be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written consent of Rorke Data , Inc.
Galaxy Raid GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual Warnings and Certifications Restricted Access Location: This equipment is intended to be installed in a RESTRICTED ACCESS LOCATION only. Electric Shock Warning! To Prevent Electric Shock: Access to this equipment is granted only to trained operators and service personnel who have been instructed of and fully understand the possible hazardous conditions and the consequences of accessing non-field-serviceable units.
Galaxy Raid Installation and Hardware Reference Manual Use only shielded cables to connect I/O devices to this equipment. You are cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment. This device is in conformity with the EMC. CB This device is in conformity with the CB safety specifications.
Galaxy Raid GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual This device is in conformity with UL standards for safety.
Galaxy Raid Installation and Hardware Reference Manual Table of Contents CHAPTER 1 INTRODUCTION 1.1. PRODUCT OVERVIEW ................................................................................................1-1 1.1.1 Product Introduction ........................................................................................1-1 1.1.2 Enclosure Chassis ............................................................................................1-2 1.1.2.1 1.1.2.2 1.1.2.3 1.1.2.4 1.1.2.5 1.1.2.
Galaxy Raid GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual 2.7. INSTALLING THE OPTIONAL BBU ....................................................................2-6 2.7.1 BBU Installation Overview...............................................................................2-6 2.7.2 BBU Warnings and Precautions.......................................................................2-6 2.7.3 Installation Procedure................................................................................
Galaxy Raid Installation and Hardware Reference Manual 4.4.4 LCD Screen ......................................................................................................4-9 4.5 POWER OFF PROCEDURE .................................................................................4-10 CHAPTER 5 SUBSYSTEM MAINTENANCE 5.1. OVERVIEW.............................................................................................................5-1 5.1.1 Maintenance ..............................................
Galaxy Raid GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual C.2. C.3. C.4. C.5. C.6. x COM1 CABLE: DB9 AUDIO JACK PIN OUTS .......................................................... C-3 COM2 CABLE: DB9 AUDIO JACK PIN OUTS .......................................................... C-4 GAL-9011 NULL MODEM ...................................................................................... C-5 ETHERNET PORT PIN OUTS............................................................................
Galaxy Raid Installation and Hardware Reference Manual Safety Precautions Precautions and Instructions • Prior to powering on the subsystem, ensure that the correct power range is being used. • The Galaxy subsystem comes with twenty four (24) drive bays. Leaving any of these drive bays empty will greatly affect the efficiency of the airflow within the enclosure, and will consequently lead to the system overheating, which can cause irreparable damage.
Galaxy Raid GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual About This Manual This manual: • Introduces the Galaxy RAID GHDX2-2430S/R-24F4D 400mhz ASIC subsystem. • Describes all the active components in the subsystem. • Provides recommendations and details about the hardware installation process. • Briefly describes how to monitor the subsystem. • Describes how to maintain the subsystem. This manual does not: • Describe components that are not user-serviceable.
Galaxy Raid Installation and Hardware Reference Manual These two documents can be found in the product utility CD included with your subsystem package. Conventions Naming From this point on and throughout the rest of this manual, the Galaxy series is referred to as simply the “subsystem” or the “system” and Galaxy is frequently abbreviated as “Gal.” Lists Bulleted Lists: Bulleted lists are statements of non-sequential facts. They can be read in any order.
Galaxy Raid GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual equipment or result in personal injury. Warnings should be taken seriously. Software and Firmware Updates Please contact Rorke Technical Support for the latest software or firmware updates. Problems that occur during the updating process may cause unrecoverable errors and system down time. Always consult technical personnel before proceeding with any firmware upgrade.
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Chapter 1 Introduction 1.1. Product Overview This hardware manual briefly introduces the Galaxy GHDX2-2430S/R-16F4D Fibre-4G to SATA-II RAID subsystem as shown in Figure 1-1. Figure 1-1: GHDX2-2430S/R-24F4D FC-to-SATA RAID Subsystem The GHDX2-2430S-24F4D RAID subsystem is powered by a single RAID controller, the GHDX2-2430R-24F4D by dual redundant RAID controllers. Each RAID controller comes with two (2) 4Gbps Fibre host channels that are interfaced through four (4) separate SFP ports.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual A SAS expansion port comes with each RAID controller and provides easy connectivity to terabytes of expansion capacity over the 4x, wide SAS link cables. Two (2) RS-232C (audio jack) serial port connectors are located on the controller faceplate. One serial port (COM1) enables serial communication between the controller and an external PC running terminal emulation software that can be used to configure and manage the RAID subsystem.
Chapter 1: Introduction Figure 1-2: Galaxy 24-bay SATA RAID Subsystem Overview 1.1.1.2 Physical Dimensions The Galaxy HDX2 24bay subsystem comes in a standard 4U chassis with the following dimensions: ♦ With forearm handles: 482W x 174.4H x 514D mm (19 x 6.87 x 20.2 inches) ♦ Without forearm handles: 445W x 174.4H x 498D mm (17.5 x 6.87 x 19.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual 1.1.1.3 Front Panel Overview Figure 1-3: Galaxy HDX2 24bay RAID Subsystem Front View As shown above, the front section of the subsystem features a 4-column by 6-row layout to accommodate twenty-four (24) drive trays that are designed to house standard 3.5-inch SATA drives. The left-side forearm handle comes with a 16 characters by 2 rows LCD screen and four (4) function keys that can be used to configure and monitor the subsystem. 1.
Chapter 1: Introduction 1.1.1.5 Rear Panel Overview Figure 1-5: Galaxy GHDX2-2430R-24F4D Rear View Figure 1-6: Galaxy GHDX2-2430S-24F4D Rear View The rear panel of the Dual redundant controller version of the Galaxy HDX2 subsystem is shown in Figure 1-5. The rear panel provides access to all the components located in the rear half of the RAID subsystem enclosure. The rear panel of the single controller version of the Galaxy HDX2 subsystem is shown in Figure 1-5.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual Each RAID controller module comes with four (4) SFP host ports, two (2) RS-232C (audio jack) serial ports, one (1) RJ-45 Ethernet connector and status-indicating LEDs located on its rear-facing faceplate. 1.1.1.6 The Backplane Board An integrated backplane board receives disk drives on the front end and connects the RAID controller, cooling, and PSU modules on the other side.
Chapter 1: Introduction the subsystem model name. A different name can be assigned for the subsystem or specific logical drives. This enables ease of identification in a topology consisting of numerous arrays. 1.2.2 Drive Trays Figure 1-8: Drive Tray The subsystems’ twenty-four (24) drive trays accommodate separately purchased, standard 1-inch pitch, 3.5-inch disk drives. The drive bays are accessed through the front of the enclosure.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual contains no user-serviceable components. Only remove the controller when replacing a faulty unit or installing/ the cache memory inside. WARNING! Although the RAID controllers are hot-swappable, the only time you should handle the controller itself is to remove a failed controller, or to install and replace memory modules. Unnecessary tampering with the RAID controller can damage the controller.
Chapter 1: Introduction The dual-controller subsystem comes with a serial port Y-cable that allows you to access a surviving controller in the event of controller failure without physically changing the connection. TIPS: Connect both Ethernet ports (if you are using a dual-controller subsystem) to the Ethernet ports of your network switch. The Ethernet port on a non-dominant (secondary) controller will stay idle until the occurrence of primary controller failure. 1.2.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual Figure 1-10: BBU Module, Controller Top Cover, and the Module Slot The BBU functionality consists of two major parts. One is the charger circuitry mounted on top of the controller main board. The other is an optional BBU module that contains several battery cells. On a single-controller configuration, the BBU is an optional accessory. The BBU module is hot-swappable so it can be replaced while the subsystem is running.
Chapter 1: Introduction Figure 1-11: PSU Module Each PSU module comes with a power socket for power cord plug-in. All three power supplies are turned on and off using a single power switch on the enclosure chassis. Each PSU also comes with two (2) embedded cooling fans to provide sufficient airflow across its heat-generating components and one (1) LED to indicate the PSU status. An extraction handle makes it easier to install or remove the PSU from the subsystem.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual 2 1. Warning messages are issued. 2. The subsystem is temporarily held in an idle state. 3. The firmware forces the subsystem to stop serving host I/O requests. 4. After the failed PSUs are replaced, array administrators should manually turn the power switch off and then on. 5.
Chapter 1: Introduction Figure 1-12: Cooling Module 1.2.9 Enclosure DIP Switches Figure 1-13: Enclosure DIP Switches DIP switches are located on the upper left corner of enclosure rear panel. The first tree switches determine an enclosure ID and should always be kept at their default, “0-0-0.” The two (2) switches marked as #7 and #8 have no function. The #4 switch is for controlling the onboard hub across the host ports on partner controllers, to enable/disable the onboard bypass.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual 1.3. Subsystem Monitoring The RAID subsystem comes with several monitoring methods to give you constant updates on the status of the system and its individual components. The following monitoring features are included in the subsystem. 1.3.1 I2C bus The following subsystem elements interface to the RAID controller over a non-userserviceable I2C bus: 1.3.
Chapter 1: Introduction RAIDWatch: RAIDWatch is a premier, web-based or Java-based graphical user interface (GUI) that can be installed on an adjacent or a remote computer and accessed via standard TCP/IP. 1.3.4 Audible Alarm The RAID subsystem comes with audible alarms that are triggered when certain active components fail or when certain controller or subsystem thresholds are exceeded.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual 1.4.3 Normalized Airflow Proper subsystem cooling is referred to as “normalized” airflow. Normalized ensures the sufficient cooling of the subsystem and is only attained when components are properly installed. Therefore, a failed component should only swapped when a replacement is available. If a failed component is removed replaced, permanent damage to the subsystem can result.
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Chapter 2 Hardware Installation 2.1. Installation Overview This chapter gives detailed instructions on how to install hard disk drives and drive trays into the subsystem. Installation into a rack or cabinet should occur before hard drive installation. Please confirm that you received all of the components listed on a printed copy of Unpacking List included in the shipping package before proceeding with the installation process. 2.2. Installation Pre-requisites 1.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual 6. 2.3. Rack installation: The enclosure chassis can be installed into standard, 19-inch wide rack cabinet using self-purchased mounting rails the Galaxy slide rails. Static-free Installation Static electricity can damage the system’s electronic components. Most of the subsystems that are returned for repair result from improper installation and ESD damage.
Chapter 2 Hardware Installation Step 4. Verification of hard drive installation into the drive trays. Although SATA-II interface hard drives have been installed into drive trays for you, follow this procedure to replace individual hard drives. (See Section 2.7) Step 5. Install the drive trays into the enclosure. Note that the drive trays used in single- or redundant-controller subsystems are different. Make sure not to mix the drive trays.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual Figure 2-1: Installation Procedure Flowchart 2.5. Unpacking the Subsystem The subsystem components are packed in several boxes. WARNING! For a detailed packing list, refer to the included Unpacking List. Do not rely on the non-definitive, summarized checklist shown below - it is for reference only.
Chapter 2 Hardware Installation 2.6. One (1) LCD keypad panel on the left side foldable handle Back-end PCBs Memory Module Installation 2.6.1 Memory Module Installation Overview The subsystem comes with a pre-installed 512MB DDR RAM DIMM module on each controller. The controller supports memory modules with sizes up to 2GB. If memory modules with a different size need to be used, the pre-installed DIMM module can be removed and the new ones installed.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual WARNING! The controller board in the controller module is a sensitive item. Please ensure that all anti-static precautions stipulated above are strictly adhered to. Only qualified engineers should replace the DIMM module. Removing the DIMM module while it contains cached data and when the BBU is still attached to the controller can damage the DIMM module.
Chapter 2 Hardware Installation 3. The BBU module is hot-swappable and can be independently swapped from the controller. However, as a safety precaution and just in case your memory still holds cached data, it is recommended to flush the unfinished writes using the “Controller Shutdown” command in firmware and remove the BBU module before handling the DDR RAM module. If the BBU is supplying power to the memory when the DDR module is being removed, damage may occur. Step 1.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual Figure 2-3: Removing the Controller Module Step 4. Remove the DDR DIMM module. You can access the DIMM module from the opening on the right side of the controller canister. To remove the DIMM module, press the white, plastic ejectors (clips) on the sides of the DIMM socket. Grasp the DIMM module by its edges and pull it out of the socket without touching the electrical components nearby. Place the module in an anti-static bag.
Chapter 2 Hardware Installation Figure 2-4: Accessing a DIMM Module Step 5. Install the replacement DIMM module. Carefully remove the replacement module from its anti-static bag. Grasp the module by edges. Make sure the white, plastic ejectors on the sides of DIMM socket are open. Carefully align the DIMM module to the socket. Pressing firmly on both ends, push the module into the socket until the ejectors return to the closed position. Figure 2-5: Accessing a DIMM Module Step 6.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual 3. Use the ejector levers on the sides to secure the controller into the chassis slot. Make sure the squared notches of the ejector levers lock onto the metal grooves on the interior walls of the module slot. Once in place, pull the levers up to secure the controller. 4. Insert and fasten the retention screws underneath each ejector lever to secure the modules.
Chapter 2 Hardware Installation 2.7. Rackmounting the Subsystem 2.7.1 Package Contents The slide rail kit (32- or 36-inch versions) includes the following components. You should check to ensure that the slide rail kit you received contains the items listed below. NOTE: Except for the different length of mounting brackets, the 32- and 36-inch versions use the same mounting screws and mounting holes on rack posts. Item 32-inch/812.8mm; 36-inch/914.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual Figure 2-7: Package Contents The rackmount rails secure the Galaxy 4U chassis to standard 19-inch wide, four-post cabinets or racks that are between 23 and 36 inches deep. These heavy-duty rackmount rails provide an easy and safe access to the subsystems as well as a solid support. Prepare the tools needed to install the enclosure into rack. The following should be necessary: 2.7.2 • A medium-sized cross-head screwdriver.
Chapter 2 Hardware Installation so that the front and rear edges of the bracket fit the vertical rack posts. Figure 2-8: Fitting a Support Bracket to Rack Posts Step 3. Determine where in the rack the subsystem is going to be installed. Attach four (4) M5 flathead screws (#6 in the packing list) to secure the bracket to the front and the rear rack posts. See the drawing above. Note that the lower part of the Lshaped brackets should always face inward. Step 4.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual Figure 2-9: Attaching M5 Cage Nuts to Rack Posts CAUTION! The mounting positions on the rack posts must be carefully measured so that rails are mounted parallel to each other. Also pay attention to the clearance between the rackmounted units. Step 5. Attach a spacer (#10 in the packing list) to the back of each enclosure forearm handle using three (3) included flathead screws (#7 in the packing list).
Chapter 2 Hardware Installation Step 6. Use the included crosshead round screws (#9 in the packing list) to secure two (2) end brackets (#3 or #4) to the back of the subsystem. Figure 2-11: Attaching End Brackets to the Rear Side of Enclosure Step 7. Gently slide the subsystem into the rack by aligning the tips of the end brackets with the support brackets. Carefully rest the tips of the end brackets onto the support brackets and slide the chassis forward. Step 8.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual list) through the holes on the left- and right-side handles to both of the front rack posts. Figure 2-13: Securing Enclosure through the Front 2.8. Hard Drive Installation 2.8.1 Hard Drive Installation Overview WARNING! 1. Handle hard drives with extreme care. Hard drives are very delicate.
Chapter 2 Hardware Installation impact during installation may damage your hard drives. Hard drives for the subsystem must be purchased separately. When purchasing the hard drives, the following factors should be considered: Capacity (MB/GB): Use drives with the same capacity. RAID arrays use a “leastcommon-denominator” approach meaning the maximum applicable capacity from each member drive in the array is the maximum capacity of the smallest drive.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual Figure 2-14: Installing a Hard Drive Step 2. Adjust the drive’s location until the mounting holes in the drive canister are aligned with those on the hard drive. Secure the drive with four (4) supplied 6/32 flathead screws. See the diagram below for the screw hole locations using a drive tray with or without a MUX board. Figure 2-15: Screw Hole Locations WARNING! Only use screws supplied with the drive canisters.
Chapter 2 Hardware Installation 2.9. Drive Tray Installation Before drive tray installation, you need to access the drive bays on the left- and right-side columns: To access drive bays hidden behind the forearm handles, first release the retention latches on the enclosure front handles, and then swing the handles to the left and right-hand sides. To close the handles, see Figure 2-16, first swing the handles towards the center to reveal the retention latch, release the latch, and then close the handles.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual Figure 2-18: Opening Front Bezel Step 3. Line up with the tray slot in which you wish to insert it. Once the drive tray is lined up with the slot, gently slide it in. This should be done smoothly and gently. Step 4. Close the front bezel. Make sure the front bezel is closed properly to ensure that the back-end connector is firmly mated with the corresponding connector on the backplane.
Chapter 2 Hardware Installation Figure 2-20: Drive Tray Bezel Lock Rotation WARNING! All the drive trays must be installed into the enclosure even if they currently do not contain a hard drive. If the drive trays are not installed, then the ventilation required for cooling will not be normalized and the subsystem will be damaged. 2.10. Power Cord Cable Clamp Installation Several cable clamp assemblies are included in the accessories boxes in the RAID shipping package.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual Figure 2-21: Cable Clamp and Cable Strap (Cable Mount) 2.10.2 Cable Clamp Installation Step 1. Connect a power cord to a subsystem power socket so that you can determine the correct position of the cable clamp along the cable strap. The diagram below shows the relative positions of a power cord, cable clamp, and cable strap. Figure 2-22: Power Cord, Cable Clamp and Cable Strap Positions Step 2.
Chapter 2 Hardware Installation and the ribbed side facing down. Press the release tab and adjust the position of the cable clamp along the strap. Figure 2-23: Inserting Cable Strap into Cable Clamp Step 3. Mount the cable strap to the chassis by inserting the push-in barb anchor into the pre-drilled hole underneath the power supply. Step 4. Secure the power cord with the cable clamp Flip open the cable clamp and wrap it around the power plug.
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Chapter 3 Subsystem Monitoring 3.1. Subsystem Monitoring Overview The Galaxy GHDX2-2430S-24F4D and GHDX2-2430R-24F4D subsystems are equipped with a variety of self-monitoring features that keep you informed of the subsystem’s operational statuses. These monitoring features provide vital feedback to help you maintain the operational integrity of the subsystem. Prompt response to warnings and component failure notifications will help ensure data integrity and the longevity of the RAID subsystem.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual Audible alarm: The audible alarm on the subsystem controller board will be triggered if any of a number of threatening events occurs. These events usually jeopardize the functional and operational integrity of the controller board and must be heeded at all times.
Chapter 3 Subsystem Monitoring thresholds is violated. BBU Link 4 5 Hst Bsy Green ON indicates BBU is present. Green FLASHING indicates there is active traffic through the host ports. OFF indicates there is no activity on the host ports. FLASHING indicates there is active traffic on the drive channels. 6 Drv Bsy Green OFF indicates there is no activity on the drive channels. Table 3-1: Controller Module LED Definitions 3.2.1.1 Fibre Port LEDs Each I/O module provides 4G FC SFP ports.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual remain intact after default restoration, configuration data such as LUN mapping and performance preferences will be erased. Before using this button, make sure you have a written record or a previously saved configuration profile (one of firmware’s functionalities, “Save NVRAM”). Please refer to Chapter 1 for the correct procedures of default restoration. 3.2.
Chapter 3 Subsystem Monitoring Figure 3-3: LCD Panel LEDs System Monitoring 3-5
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual LED Name Color Status PWR Blue ON indicates that power is supplied to the subsystem. OFF indicates that no power is supplied to the subsystem or the subsystem/RAID controller has failed. BUSY White ON indicates that there is active traffic on the host/drive channels. OFF indicates that there are no activities on the host/drive channels. ATTEN Red ON indicates that a component failure/status event has occurred.
Chapter 3 Subsystem Monitoring LED Name Color Status Drive Busy Blue/Amber FLASHING blue indicates there is read/write activity on the drive from Controller A. FLASHING amber indicates there is read/write activity on the drive from Controller B (in a redundant-controller mode). OFF indicates there is no read/write activity on the drive. Power Status Green/Red GREEN indicates that power is supplied to the hard disk drive and the disk drive is present.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual FLASHING indicates the batteries are being charged. Table 3-6: BBU LED Definitions IMPORTANT! In addition to BBU failure itself and the charger failure, the subsystem may also light the BBU fault LED when the following occur: 1. The temperature sensor embedded with the charger circuit reports a temperature reading exceeding 45 degree Celsius. 2. The BBU (battery backup unit) has been charged for over 12 hours.
Chapter 3 Subsystem Monitoring Figure 3-6: PSU Module LED Color Status Static Green The PSU is operating normally and experiencing no problems Static Red The PSU has failed and is unable to continue providing power to the subsystem. Blinking Green The PSU is not turned on. This LED blinks when the power cord is connected but the power switch is not turned on. OFF The PSU is not turned on, no power is supplied to the PSU or the power plug is not connected. Table 3-7: PSU Module LED Definitions 3.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual LED Status OFF The respective cooling fan is operating normally. ON The respective cooling fan has failed and the module must be replaced. Table 3-8: Cooling Fan Module LED Definitions 3.3. Audible Alarm Different controller environmental and operational parameters (such as temperature, etc.) have been assigned a range of values between which they can fluctuate.
Chapter 3 Subsystem Monitoring CPU Temperature 90ºC 5ºC Board Temperature 80ºC 5ºC Table 3-9: Default Threshold Values The thresholds in Table 3-9 are the default threshold values. To see how to change these values, please refer to the firmware Operation Manual that came with your system. 3.3.2 Failed Devices If any of the following devices fail, the audible alarm will be triggered: 3.4.
Chapter 4 Connection and Operation This chapter outlines some basic rules you should follow when configuring a storage system and introduces basic information about how to connect the cabling and design a topology for the Galaxy 24bay RAID subsystems. You can follow these sample topologies or use them as a guide for developing your own unique topologies. A complete description of the power on and power off procedures is also given in this chapter. 4.1 FC Host Connection Prerequisites 4.1.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual 4.1.2 FC Lasers CAUTION! Lasers can be hazardous and may cause permanent eye damage, and therefore must be treated with respect and used with caution. Never look at lasers without knowing that they are turned off. Wavelengths: The lasers on fiber optic cables emit either short wave (SW) beams (770nm-860nm) or long wave (LW) (1270nm-1355nm) beams. Cables using either of these wavelengths can be used.
Chapter 4: Subsystem Connection and Operation NOTE: LC connectors are small form-factor, fiber-optic connectors based on a 1.25-mm ceramic ferrule with the familiar latching mechanism of the RJ45 modular plug and jack. Other beneficial features of a typical SFP transceiver include a single power supply, low power dissipation, and hot-swap capability. It is also important that any transceiver you use meets the FC performance and reliability specifications.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual Figure 4-1: Drive Mechanical Speed and Logical Drive Speed There are other considerations. For example, a spare drive carries no data stripes and will not contribute to disk-level performance. Refer to the documentation that came with your hard drives for performance data. 4-4 • Follow all the Fibre Channel specifications when cabling. Pay attention to signal quality and avoid electronic noise from adjacent interfaces.
Chapter 4: Subsystem Connection and Operation 4.2.2 Fibre Channel Topologies The Fibre Channel standard supports three (3) separate topologies: point-topoint, Fibre Channel Arbitrated Loop (FC-AL), and fabric switch. 4.2.3 • Point-to-Point: Point-to-point topology is the simplest topology that can be used. It is a direct connection between two (2) Fibre Channel devices. System firmware has a related configuration option, and when set to “Point-to-Point,” only one target ID is available on each channel.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual controllers to synchronize cached data and configuration profile. When the onboard hub is enabled by the enclosure DIP switches, the two (2) host channels on individual RAID controllers are connected internally via bypass. This mechanism provides access routes to a surviving controller in the event of a single controller failure. • 4.2.
Chapter 4: Subsystem Connection and Operation 4.3 Fibre Channels 4.3.1 Onboard Hub Settings The subsystem comes with embedded hub on their host channels. Channel bus and access routes configurations with different DIP switch settings are diagrammed below. 4.3.2 Jumper Assignments Figure 4-2: Location of the DIP Switches • Pin #4: CH0 and CH1 onboard hub en/disable The onboard hub enabled on CH0 and CH1. The onboard hub disabled on CH0 and CH1.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual DIP Switch Configurations and Host Port Connectivity: • Pin #4: The host channels of the partner controllers are connected together across the backplane signal paths. Host ports are combined into host loops; for example, the CH0 ports on Controller A and Controller B form a 4-port host loop. Every host I/O port connects to both of the RAID controllers. Figure 4-3: Hub Enabled: Controller A and B ports Combined into Host Loops.
Chapter 4: Subsystem Connection and Operation Figure 4-4: Host Port Bandwidth when the Onboard Hub is Enabled or Disabled IMPORTANT: 1. One drawback of using the hub function is that the host ports hubbed together may not be connected to the N_ports on a fabric switch. When host ports are hubbed together, they are ideal for connecting other RAID enclosures and direct-attached servers with path redundancy without the costs on expensive FC switches. 2.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual on two controllers. If host ports are hubbed together, all four “Channel 1” host ports on bother controllers share a 4Gb/s bandwidth. Figure 4-5: Channel Bus Connection and Cascaded Subsystems o Usage: 4-10 The onboard hub applies when an additional RAID enclosure is needed and when you run short of the available switch ports, HBA ports, or installation space.
Chapter 4: Subsystem Connection and Operation o Concern: • One major concern for this topology is to avoid ID conflicts on the host channels. When cascaded, logical drives from different RAID subsystems should be associated with different host channel IDs. o Hub Disabled: When the onboard hub is disabled, SFP ports are specific to each RAID controller. If you connect application servers through FC switches, disable the onboard hub.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual NOTE: To answer questions related to firmware configuration such as the channel speed selection, please refer to the FC to SATA RAID Subsystem Operation Manual that came with the Product Utility CD in your subsystem package.
Chapter 4: Subsystem Connection and Operation 4.4 Host Connection Sample Topologies 4.4.1 Simple, Direct Connection to Host Computers The subsystem is directly connected to two application servers. Each server is equipped with two HBA cards. Figure 4-6: Direct-attached Clustered Servers Connections – Hub Disabled Note that if a logical drive is associated with both an AID and a BID, logical drive’s performance may not be as good as those associated with two AIDs or two BIDs.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual Shown below is an example showing logical drives each managed by a single RAID controller, host ports hubbed together, and access routes forming faulttolerant pairs. Multiple IDs will appear through the host ports; namely, multiple RAID volumes will appear through a host data link. Host management software will be necessary to manage access contention and provide failover capability.
Chapter 4: Subsystem Connection and Operation Drive Via system bus, through the backplane 4th DIP Switch Hub enabled/disabled Configuration Information 4.4.2 RAID Controllers 2 Application Servers 2 Data path Connection Fault-tolerant paths Host Channel Bandwidth 800 MBps Max. Number of Drives 24 • This is a direct-attached configuration showing two (2) host computers sharing the storage volume of one (1) RAID subsystem.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual Figure 4-8: Clustered Servers with Redundant Paths Channel Settings Host CH0 and CH1 Drive Via system bus, through the backplane 4th DIP Switch Hub disabled Configuration Information 4-16 RAID Controllers 2 Application Servers 4 Data Path Connection Fault-tolerant data paths Host Channel Bandwidth 1600 MB/s Max.
Chapter 4: Subsystem Connection and Operation • This is a direct-attached configuration showing four (4) host computers sharing the capacity in one (1) RAID subsystem. Disk drives in the enclosure can be configured into one or more arrays, and made available through individual host ports. • Each configured array (logical drive) is separately mapped (or associated) with more than one host ID/LUN.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual 4.4.3 Hub Disabled and Switched Fabric Connection With disabled hub, the individual host channels from individual RAID controllers are connected to two separate switched fabric networks. This can apply to applications using the RAID subsystem as a common storage pool where component and path redundancy is also important. For simplicity reason, only two servers are shown in the diagram.
Chapter 4: Subsystem Connection and Operation Data Path Connection Fault-tolerant data paths Host Channel Bandwidth 1600 MB/s Max. Number of Drives 24 The onboard hub can be disabled so that individual host ports provide access to individual RAID controllers. • This is a SAN storage application using two (2) host channels through four (4) separate FC links from individual RAID controllers. • Path bypass redundancy is provided externally by a fabric switch.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual 4-20 Subsystem Connection and Operation
Chapter 4: Subsystem Connection and Operation 4.4.4 Expansion Links A redundant-controller RAID enclosure connects to a maximum of two (2) 16 drive SAS expansion enclosures which house either SAS or SATA disk drives. SAS link cables are provided with the expansion enclosures. A unique enclosure ID should be individually configured for each expansion enclosure using the rotary ID switch on its LED panel.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual A single-controller RAID enclosure connects to a maximum of four (4) 16 bay SAS expansion enclosures which house either SAS or SATA disk drives. SAS link cables are provided with the expansion enclosures. The single-controller configuration provides no data link redundancy. Figure 4-12: Expansion: Single Controller Configuration 4.
Chapter 4: Subsystem Connection and Operation 4.5.2 BBU: If used, make sure the optional BBU has been installed correctly in the single-controller enclosure. Hard drives: Hard drives have been correctly installed in the drive trays. Drive trays: All the drive trays, whether or not they contain a hard drive, have been installed into the subsystem. DIP switch settings: All the appropriate DIP switch settings have been made.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual Figure 4-13: Power Switch CAUTION! Although the PSUs are redundant and the subsystem can withstand a single PSU failure, it is advisable to replace a failed PSU immediately. The subsystem will be held in an idle state if two PSUs have already failed in the subsystem. Step 4. Power on the host computers. The host computers are the last devices that are turned on.
Chapter 4: Subsystem Connection and Operation Audible alarm – If any errors occur during the initialization process, the onboard alarm will sound in a hastily repeated manner. Drive tray LEDs should normally start flashing, indicating the RAID controller units are attempting to access the hard drives. System firmware can be configured to support a delayed sequence for starting drives. Please consult your interface-specific Operation Manual for more details.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual 4.5.4 LCD Screen When powering on the subsystem, the following messages should appear on the front panel LCD screen. Wait for the front panel LCD to show “READY” or “No Host LUN” before the host boots up. Model Name GHDX2-24 Ready Status/Data Transfer Indicator Figure 4-14: The LCD Initial Screen The LCD screen startup sequence is shown and described in the sequence below. 4-26 Initializing…. Please Wait...
Chapter 4: Subsystem Connection and Operation 4.6 Power Off Procedure To power off the subsystem, please follow these steps: NOTE: When powering off the subsystem, please ensure that no time-consuming processes, like a “logical drive parity” check or a “Media Scan,” are running. Step 1. Stop I/O access to the system. Use the software provided on the host computer to stop all I/O accesses to the subsystem. Please refer to the documentation that came with your application servers and operating systems.
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Chapter 5 Subsystem Maintenance 5.1. Introducing Subsystem Maintenance and Upgrading 5.1.1 Maintenance Constant monitoring and maintenance of your subsystem will minimize subsystem downtime and preserve the working integrity of the system for a longer period of time. If any of the subsystem components fail, they must be replaced as soon as possible. WARNING! Do not remove a failed component from the subsystem until you have a replacement on hand.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual 5-2 Subsystem Maintenance
Chapter 5: Subsystem Maintenance 5.1.2 General Notes on Component Replacement All of the components on the subsystem, including the RAID controllers, PSU modules, cooling modules, and drive trays, are hot-swappable and can be changed while the subsystem is still in operation. Qualified engineers who are familiar with the subsystem should be the only ones who make component replacements.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual 5.2.2 5.2.3 BBU Module The BBU can be installed after the initial installation procedure or replaced if a previously installed BBU module is faulty or fails to hold its charge. Main Board If the controller module in a single controller model fails, it is necessary to power the system down and replace the controller. Notes on Controller Module Maintenance The controller module contains a DIMM module and a BBU module.
Chapter 5: Subsystem Maintenance Step 2. If working on the dual-controller Galaxy HDX2, the workload should have been taken over by the surviving RAID controller in the event of single controller failure. Step 3. Remove the BBU module if one has been installed. Loosen the BBU module’s retention screw and then simply retrieve it from the chassis. Figure 5-1: Removing the BBU Module Step 4. Disconnect all cables that are connected to the controller module you wish to replace.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual positions, the controller module will automatically be eased out of the controller module bay in the subsystem. Figure 5-3: Removing the Controller Module Step 7. 5.2.4 Carefully pull the controller module out of the subsystem chassis keeping one hand underneath to support the weight of the module.
Chapter 5: Subsystem Maintenance Step 2. Install the BBU module onto the replacement controller. You may need to install a DIMM module to your replacement controller if it comes without a pre-installed module. Step 3. Install the replacement controller into the subsystem by pushing it into the module slot. Carefully push it in until you feel the contact resistance.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual Step 6. Power up the system. Please follow the correct power up sequence that is described below. 5.3. Replacing a Failed BBU Component 5.3.1 Replacing the BBU Module NOTE: When replacing a BBU in a single controller model, the whole subsystem needs to be powered down. Therefore, when replacing a failed BBU, you should carefully select the time at which the replacement will be made to minimize the overall disruption to the service.
Chapter 5: Subsystem Maintenance BBU failure can result from the following: 1. A BBU (Battery Backup Unit) has lost its ability to hold electrical charge. This may be the case after the battery cells have been recharged for many times regardless of how long the module has been used. Therefore, a stable power source is important for system operation. 2. The charger circuitry mounted underneath the controller top cover has failed.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual NOTE: 1. The chance of BBU charger failure is comparatively low. If the cause of a failure cannot be determined even after a BBU module is replaced, contact your system vendor for a replacement controller and return the controller module through the standard RMA procedure. Details of the RMA procedure can be found on the Galaxy website. 2.
Chapter 5: Subsystem Maintenance Figure 5-6: Removing the Power Cord Step 2. Remove the retention screw underneath the PSU’s extraction handle. Figure 5-7: Removing the PSU Retention Screw Step 3. Subsystem Maintenance Remove the failed module by pressing the extraction handle down until the PSU is released from the enclosure chassis.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual Figure 5-8: Dislodging the PSU Step 4. Gently pull the PSU module out of the chassis using the retention handle. Step 5. Insert the replacement PSU module into the slot with the retention handle at its lowest position. Push the PSU in until you feel the contact resistance with its back-end connectors. Do not use force or slam the module into place. Doing so can damage the back-end connectors or enclosure backplane.
Chapter 5: Subsystem Maintenance Step 6. Insert and fasten the retention screw underneath the extraction handle to secure the module. Step 7. Install the cable clamp assembly (if used). 5.5. Cooling Module Maintenance 5.5.1 Notes on Cooling Module Maintenance Two redundant cooling modules: The subsystem is equipped with two redundant, hot swappable, dual-fan cooling modules located above the PSU modules.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual Replacing a cooling module: When you are notified that a cooling module has failed, it should be replaced as soon as possible. A failed cooling module should only be removed from the subsystem when you have a replacement module that can be installed as soon as the failed cooling module has been removed. WARNING! It is not advisable to run the subsystem with a single cooling module for a long period of time.
Chapter 5: Subsystem Maintenance 5.6. Drive Tray Maintenance 5.6.1 Notes on Hard Drive Maintenance Hot-swappable drive trays: The drive trays are all hot-swappable. If a hard drive fails, it can be replaced while the subsystem is still running. Remove drives slowly: When removing a drive tray, withdraw it from the enclosure slowly. Open the front flap: Once the front flap on the drive tray has been opened, the drive tray must be removed from the subsystem.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual 5-16 Step 5. Remove the retention screws on the sides of the drive tray and then remove the hard drive from the drive tray. Step 6. Install the replacement drive. Please refer to the complete hard drive installation procedure in Chapter 2.
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Appendix A Subsystem Specifications A.1.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual Certifications • • • • • FCC Class-A CE CB UL60950 / IEC 60950 BSMI Shock Half-sine Operating: 5G peak, 11ms duration Non-operating: 10G peak, 11ms duration Vibration Operating 5 to 500Hz, 0.2G, 0.5oct/min Non-operating 5 to 500Hz, 1.0G, 0.
Appendix A: Subsystem Specifications A.2. Controller Functional Specifications Specification RAID Levels Host O/S Compatibility Host Interface Host Channels Drive Interface Drive Channels Cache Mode Cache Memory Number of LUNs RCC channels Multiple Target IDs/Host Channel Aliases for Target IDs Firmware on Flash Memory Drive Hotswapping Controller Hotswapping A.3.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual A.4. Power Supply Specifications Specification Nominal Power DC Output Input Frequency AC Input Power Factor Correction Hold-up Time I2C A.5. 405W +3.3V: 3.20V to 3.465V; max. 20A +5V: 4.80V to 5.25V; max. 36A +12V: 11.52V to 12.60V; max. 24A +5V SB: 4.85V to 5.25V; max. 0.5A +3.3V & +5V combined power; max.
Appendix A: Subsystem Specifications A.6. RAID Management Specification • • Configuration • • Performance Monitoring Remote Control and Monitoring Event Notification Management Connection Configuration on Disk Failure Indicator A.7.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual Salvage the 2nd Temporary Failed Drive in a Yes RAID 1, 3, 5, or 6 Logical Drive Salvage the 1st Temporary Failed Drive in a Yes RAID 0 Logical Drive * For more firmware details, please refer to your interface-specific firmware Operation Manual.
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Appendix B Spare Parts and Accessories B.1. Spare Parts Spare parts that come with the subsystem are listed in Table B-1.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual GHDX29274HANDLLCD Left-side forearm handle, for Galaxy 24-bay GHDX22430S/R-24F4D subsystems LCD keypad panel GHDX2-9274CHANDR Right-side forearm handle, for Galaxy 24-bay GHDX22430S/R-24F4D subsystems GALHDX-9274CBTC Battery cell pack, Li-Ion, for Galaxy 24-bay GHDX22430S/R-24F4D subsystems Table B-1: Spare Parts Shipped with the Subsystem B.2.
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Appendix C Pinouts C.1. SFP Connector Pinouts Each of the SFP host or expansion ports is comprised of a case bottom, an EMI case, and a 20-pin host connector. These port sockets receive Small-FormFactor Pluggable (SFP) fiber optic and copper-based transceivers.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual Pin C-2 Pin Name Pin Description 1 VEET Transmitter ground (common with receiver ground) 2 TFAULT Transmitter fault; not supported 3 TDIS Transmitter disable; laser output disabled on high or open 4 MOD_DEF(2) Module definition 2; data line for serial ID 5 MOD_DEF(1) Module definition 1; clock line for serial ID 6 MOD_DEF(0) Module definition 0; grounded within the module 7 Rate Select No connection required 8 L
Appendix C Pinouts Table C-1: SFP Pin Out Definitions C.2. COM1 Serial Port Cable COM1 Cable: This cable connects between COM1 serial port on the controller module to the serial port of a management computer. The serial port’s defaults and requirements are: 1. Set at 38400 baud, 8 bit, 1 stop bit, and no parity. 2. In most cases, connecting RXD, TXD, and GND is enough to establish communications with a terminal.
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual C.3. COM1 Cable: DB9 Audio Jack Y-Cable Pinouts The 2-audio jacks to DB9 Y-cable connects the COM1 serial ports on the redundant RAID controllers for maintenance-free terminal emulation connection during controller failover/failback.
Appendix C Pinouts Figure C-4: Connector Pinouts - Adapter Cable for COM2 Pinouts C-5
Galaxy GHDX2-2430S/R-24F4D Installation and Hardware Reference Manual CN1 Pin Number 1 2 3 CN2 Pin Number 1 2 3 4 5 6 7 8 9 Pin Name Ground TXD RXD Pin Name TXD RXD NA NA NA NA NA NA Ground Table C-4: COM2 Adapter Cable CN1 and CN2 Pinout Definitions C.5. Null Modem A null modem is used for wire-swap and is necessary for connecting COM1 CN2 to a PC serial port.
Appendix C Pinouts Figure C-5: Null Modem Swap pin 2 and pin 3 Swap pin 4 and pin 6 Swap pin 7 and pin 8 Table C-5: Null Modem Pinouts C.6. Ethernet Port Pinouts Figure C-6: Ethernet Port Connector Pin Pin Name Pin Pin Name 1 LAN_TXP 5 N2 2 LAN_TXN 6 LAN_RXN 3 LAN_RXP 7 N1 4 N2 8 N1 Table C-6: Ethernet Port Pinouts C.7. Power Socket IEC-type receptacle.
