EonStor® A12U/A08U-G2421 SCSI-to-SATA RAID Subsystem Installation and Hardware Reference Manual Version 1.
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual Contact Information Asia Pacific Americas (International Headquarters) Infortrend Technology, Inc. 8F, No. 102 Chung-Shan Rd., Sec. 3 Chung-Ho City, Taipei Hsien, Taiwan Tel: +886-2-2226-0126 Fax: +886-2-2226-0020 sales@infortrend.com.tw support@infortrend.com.tw http://www.infortrend.com.tw Infortrend Corporation 3150 Coronado Dr., Unit C Santa Clara, CA 95054 USA Tel: +1-408-988-5088 Fax: +1-408-988-6288 sales@infortrend.
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual Copyright 2005 This Edition First Published 2005 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 Infortrend Technology, Inc.
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual Warnings and Certifications FCC (applies in the U.S. and Canada) FCC Class B Radio Frequency Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules (47 CFR, Part 2, Part 15 and CISPR PUB. 22 Class B).
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual Table of Contents CONTACT INFORMATION ..................................................................................................................... II WARNINGS AND CERTIFICATIONS ...................................................................................................... IV SAFETY PRECAUTIONS .....................................................................................................................
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual 2.6.2 2.7 2.7.1 2.7.2 2.8 2.8.1 2.8.2 2.9 2.9.1 2.9.2 2.10 Uninstalled Components...................................................................................................... 2-7 RACKMOUNTING .................................................................................................................. 2-7 Considerations for Installation Site and Chassis..................................................................
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual 5.4 5.5 5.5.1 5.5.2 5.6 5.6.1 5.6.2 5.7 5.7.1 5.7.2 REPLACING A FAULTY BBU................................................................................................. 5-8 REPLACING A FAILED PSU MODULE .................................................................................... 5-9 Notes on PSU Module Maintenance.................................................................................... 5-9 Replacing the PSU Module ...
EonStor A12U/A08U-G2421 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 EonStor A12U and A08U subsystems come with eight (8) or twelve (12) drive bays. Leaving any of these drive bays empty will seriously affect the efficiency of the airflow within the enclosure, and will consequently lead to the system overheating, which can cause irreparable damage.
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual About This Manual This manual: • Introduces the EonStor A12U/A08U-G2421 RAID Subsystems. • 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.
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual Important Messages Important messages appear where mishandling of components is possible or when work orders can be misunderstood. These messages also provide vital information associated with other aspects of system operation. The word “important” is written as “IMPORTANT,” both capitalized and bold and is followed by text in italics. The italicized text is the important message.
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual Software and Firmware Updates Please contact your system vendor or visit Infortrend’s FTP site (ftp.infortrend.com.tw) for the latest software or firmware updates. Note that the firmware version installed on your system should provide the complete functionality listed in the specification sheet/user’s manual. We provide special revisions for various application purposes.
Chapter 1 Introduction 1.1 Product Overview 1.1.1 Introduction This hardware manual briefly introduces the EonStor A12U and A08U serial ATA (SATA) RAID subsystem series. The SATA-based RAID subsystems come with two 320MB/second SCSI (SCSI-320) host channels and provide RAID protection to the data stored in the eight (8) or twelve (12) hot-swappable, SATA-II hard drives.
EonStor A08U/A12U-G2421 Installation and Hardware Reference Manual 1.1.2 Model Variations There are two available models in the 2U version of the EonStor SATA-II RAID subsystem series. Below is a comparison chart listing major components of the two models.
Chapter 1: Introduction Figure 1-3: Locations of Key Components in a 12-bay Model Figure 1-4: Locations of Key Components in an 8-bay Model CAUTION! When working with the subsystem, it is important to use tools with extreme care. Do not place tools or other items on top of the enclosure to help avoid damaging the outward appearance of chassis.
EonStor A08U/A12U-G2421 Installation and Hardware Reference Manual 1.1.3.
Chapter 1: Introduction • Drive bays with drive tray canisters: The drive bays are used to house the subsystem hard drives. The A12U contains 12 drive bays while the A08U contains 8 drive bays with a blank plate covering the lower part of the front panel. 1.1.3.4 Hard Drive Numbering The subsystems are housed in an enclosure that is 4 bays wide and 3 or 2 bays high.
EonStor A08U/A12U-G2421 Installation and Hardware Reference Manual Figure 1-9: Rear View – A12U-G2421 Subsystem Figure 1-10: Rear View – A08U-G2421 Subsystem The rear panels shown above are designed to accommodate the following components: • RAID controller module: The controller module contains a controller main board and a pre-installed DDR DIMM module. • Power Supply Unit (PSU): The PSU is used to provide power to the subsystem.
Chapter 1: Introduction 1.1.3.6 Backplane Board An integrated backplane board separates the front and rear sections of the subsystems. The PCB board provides traces for logic level signal traces and low voltage power paths. It contains no user-serviceable components. 1.2 Subsystem Components All the active components on the subsystems can be accessed through either the front or rear panel. The modular design of the active components facilitates their easy installation and removal.
EonStor A08U/A12U-G2421 Installation and Hardware Reference Manual Figure 1-13: Closing the Front Handles 1.2.2 Drive Trays The subsystems come with 12 or 8 drive trays (see Figure 1-14) designed to accommodate separately purchased standard 1-inch pitch, 3.5-inch disk drives. The drive bays are accessed from the enclosure front. Two LED’s on the front of the tray are used to indicate the drive status.
Chapter 1: Introduction The controller module contains no user-serviceable components. Except when replacing a faulty unit or installing/upgrading the cache memory inside, the controller module should never be removed or opened. WARNING! Although the RAID controller can be removed, the only time you should touch the controller itself is to replace the memory module or to install the memory module. The RAID controller is built of sensitive components and unnecessary tampering can damage the controller.
EonStor A08U/A12U-G2421 Installation and Hardware Reference Manual • COM Port All controller modules come with one RS-232C (audio jack) serial port. The serial port is used for local access to the system-embedded configuration utility over the included serial port cable. DIMM Module The controller module comes with a preinstalled 256MB capacity or above DDR RAM DIMM module and can support a larger capacity up to 2GB. The DIMM module is mounted in an easily accessible location on the controller board.
Chapter 1: Introduction 1.2.5 Power Supply Units PN: IFT-9272CPSU-0011 The SATA-based EonStor subsystems are equipped with two (2) redundant, hotswappable, 2U, 350W power supply unit (PSUs) modules. The PSU is permanently mounted into a 2U high (dual-level) bracket especially designed to house both the PSU and a cooling module mounted underneath. PSUs can be found on either side of the controller module.
EonStor A08U/A12U-G2421 Installation and Hardware Reference Manual 1.2.6 Cooling Fan Modules PN: 9272CfanModE-0010 The SATA-based EonStor subsystems are equipped with two (for A08U, the 8-bay model) or three (for A12U, the 12-bay model), 1U single-fan, redundant, hotswappable cooling modules shown in Figure 1-18. One 9.7cm fan is housed in each cooling module.
Chapter 1: Introduction NOTE: There are two values set for the upper temperature thresholds. One is set for event notification and the other triggering higher fan rotation speed. The preset value for event notification can be changed using the firmware-embedded configuration utility, while the fan speed trigger is not a user’s option. Please refer to the Generic Operation Manual for the options with event notification values. 1.
EonStor A08U/A12U-G2421 Installation and Hardware Reference Manual terminal emulation program running on a management computer that is connected to the subsystem’s serial port. RAIDWatch: RAIDWatch is a premier web-based graphical user interface (GUI) that can be installed on a remote computer and is used to access the array through LAN or the Internet. The manager communicates with the array via the connection of the existing host interface or Ethernet link to the RJ-45 LAN port. 1.3.
Chapter 1: Introduction 1.4.3 Normalized Airflow Proper subsystem cooling is referred to as “normalized” airflow. Normalized airflow ensures the sufficient cooling of the subsystem and is only attained when all components are properly installed. Therefore, a failed component should only be hotswapped when a replacement is available. If a failed component is removed but not replaced, permanent damage to the subsystem can result.
Chapter 2 Hardware Installation 2.1 Introduction This chapter gives detailed instructions on how to install the subsystem. When installing the subsystem, it is necessary to mount the chassis into a rack or cabinet and to install hard drives and drive trays. Installation into a rack or cabinet should occur before the hard drives or drive trays are installed into the subsystem.
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual (2). One (1) audio-jack-to-DB9 cable is provided to facilitate the connection of the COM1 port for local terminal emulation access to the array. (3). Two (2) power cords are provided for the power connections to the power sources. (4). The RJ-45 Ethernet cable for network management connection is a usersupplied item. 5. Memory module: If you wish to change the pre-installed memory module, a separately purchased module must be installed.
Chapter 2: Installation 6. None of the covers or replaceable modules should be removed in order to maintain compliance with safety, emission, or thermal requirements. 7. Always secure every enclosure module by its retaining screws or make sure it is held in place by its latches. 8. Always make sure the subsystem has a safe electrical earth connection via power cords or chassis ground by the rack cabinet. 9.
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual • Install or replace the BBU module only with a BBU module supplied by your subsystem vendor. Use of battery cells provided by another source will void our warranty. • Always dispose of discharged or used batteries in an ecologically responsible manner. Dispose used BBUs at authorized battery disposal sites only. • Do not use nor leave the BBU near a heat source or direct sunlight.
Chapter 2: Installation 2.4.1 Step 2. Install an optional BBU: a battery backup unit is highly recommended for its protection to data integrity. It should be installed prior to operating the subsystem. (See Section 2.8) Step 3. Rack/Cabinet installation: If the subsystem is going to be installed in a rack or cabinet, it should be installed prior to installing the hard drives. Installing the subsystem into a rack or cabinet requires at least two (2) people. Step 4.
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual Figure 2-1: Installation Procedure Flowchart 2.5 Unpacking the Subsystem Use the unpacking checklist in your package to check packing contents. Carefully check the items contained in each box before proceeding with installation. Each packed box is separated into the upper and lower levels.
Chapter 2: Installation 2.6 Installation Overview 2.6.1 Pre-installed Components The following components have been pre-installed in the EonStor subsystems and therefore do not need to be installed. • 2 - PSU modules • Cooling fan modules: 3 for A12U-G2421 (12 drive bays), or 2 for A08UG2421 (8 drive bays) • 1 - RAID controller module • 1 - Memory DIMM module (mounted on the controller) • 1 - LCD keypad panel • 2 - foldable forearm handles • 1 - backplane 2.6.
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual Wrenches may be necessary, depending on the rack type • Use the included M5 or M6 screws for securing the chassis through its front mounting ears. • More details about the use of optional slide rails are given in the Installation Guide that came with the slide rail package. 2.7.2 Mounting Holes Positions • Integrators may design their own brackets or slide rails using the twenty-two (22) mounting holes on the sides of chassis.
Chapter 2: Installation 2.8 BBU Installation 2.8.1 BBU Module Installation Overview The BBU module is an optional item that can sustain cached data in the event of a power outage or in the unlikely event that both PSUs have failed. Purchasing and installing a BBU is highly recommended. The optional BBU provides additional data security and helps minimize the chance of data loss during power shutdowns.
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual Step 3. Install the BBU module. Align the BBU module with the BBU module slot and gently insert the BBU module until the back of the BBU module reaches the end of the slot. Step 4. Secure the BBU module to the chassis. Fasten the two (2) retention screws on the BBU module rear panel to secure the BBU module to the chassis.
Chapter 2: Installation 2.9 Hard Drive Installation WARNING! 1. Handle hard drives with extreme care. Hard drives are very delicate. Dropping a drive onto a hard surface (even from a short distance) and hitting or touching the circuits on the drives with your tools may all cause damage to drives. 2. Observe all ESD prevention methods when handling hard drives. 3. Only use screws supplied with the drive canisters. Longer screws may damage the drive. 2.9.
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual Figure 2-4: Installing a SATA 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 supplied 6/32 flathead screws. (See Figure 2-4) WARNING! Only use screws supplied with the drive canisters. Longer screws may damage the drive. 2.
Chapter 2: Installation Figure 2-5: Front View of an Individual Drive Tray Step 2. Open the front flap on the drive tray. (See Figure 2-6). To open the flap, push the release button (shown in Figure 2-7) on the front bezel. The front flap will open in an upward direction. Figure 2-6: Opening Drive Tray Front Flap Step 3. Align the drive tray with the slot in which you wish to insert it. Make sure that it is resting on the rails inside the module slot.
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual Step 5. Lock the flap into place by turning the key-lock until the groove on its face is pointing down (vertical orientation). (See Figure 2-8) Figure 2-8: Drive Tray Key-lock Rotation Step 6. Once all drive trays are installed, the RAID subsystem will poll the drive channels and recognize the drives and scan them in automatically.
Chapter 3 System Monitoring This chapter provides information on how to monitor the A12U and A08U RAID subsystems. 3.1 Subsystem Monitoring Overview Both the EonStor A08U-G2421 and A12U-G2421 subsystems are equipped with a variety of self-monitoring features that help to keep subsystem managers informed of the subsystem operational status. These monitoring features provide vital feedback to help you maintain the operational integrity of the subsystem.
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual Configuration Client functionality are given in the RAIDWatch User’s Manual. • LEDs: Device-status-indicating LEDs are placed on all of the subsystems’ active components. These LEDs inform you of the integrity of a given component or a given link. You should become familiar with the different LEDs on the subsystem and be aware of their functions. (See Section 3.
Chapter 3: Monitoring 3.2 Status-indicating LEDs 3.2.1 Brief Overview of the LEDs The following devices come with LEDs that inform subsystem managers about the operational status of the component on which they are mounted. The EonStor subsystems feature status-indicating LEDs distributed over the active components in the following ways: Component LED(s) per Unit Total LEDs Definition Drive Trays 2 24 – A12U See Section 3.2.5 16 – A08U Controller Module 5 5 See Section 3.2.
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual LED 1 Name Color Green Controller Ready Status ON: Indicates controller is active and operating normally. FLASHING: Indicates controller initialization is taking place. OFF: Controller is not ready for operation. 2 Green Hst_Bsy OFF: No activities on the host ports.
Chapter 3: Monitoring Name Color Status Link Status Green ON: Indicates a valid connection to network LAN Activity Green BLINKING: Indicates active transmissions Table 3-3: Ethernet Port LED Definitions 3.2.4 LCD Keypad Panel The LCD panel located on the front aluminum foldable handle comes with three status LEDs. The LEDs are marked from top to bottom “PWR,” “BUSY” and “ATTEN” and are clearly seen in Figure 3-3 below. The definitions of these LEDs are shown in Table 3- 4.
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual 3.2.5 Drive Tray LEDs Two LED indicators are located on the right side of each drive tray. (See Figure 3- 4) Refer to Table 3- 5 for LED definitions. When notified by a drive failure message, you should check the drive tray indicators to find the correct location of the failed drive. Replacing the wrong drive can cause fatal failure of a logical array.
Chapter 3: Monitoring 3.2.6 BBU Module LED The BBU module has an LED on its faceplate. (See Figure 3-5) The function is the same as the fifth LED on the controller module. The LED is off when the BBU is functioning normally and is able to sustain the cache memory. The LED flashes to indicate the BBU is currently charging its battery cells. If the LED is illuminating amber, the unit may have failed. Please contact your system vendor to verify the problem. Figure 3-5: BBU Module LED 3.2.
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual Figure 3-7: Cooling Fan Module LED RED Status OFF The cooling fan module is operating normally. ON The cooling fan module has failed and must be replaced.
Chapter 3: Monitoring 3.3.1 Default Threshold Values NOTE: The threshold values listed below are used to trigger a warning event and sound the alarm. A different value set is reserved for triggering the cooling fans to operate at a high rotation speed. The fan speed value set is not user-configurable. Table 3-8 shows the default threshold values for the subsystem. If any of these values are surpassed the alarm will sound: Upper Threshold Lower Threshold +3.3V +3.6V +2.9V +5V +5.5V +4.5V +12V +13.
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual 3.4 I2C Monitoring Module presence detection and the general working status of cooling fan and other modules are monitored through an I2C serial bus. If any of these modules fails, the failure will be detected and you will be notified via the various methods described above.
Chapter 4: Connection and Operation Chapter 4 System Connection and Operation This chapter introduces sample topologies, configuration options and server connections for the EonStor subsystems and discusses both the power on and power off procedures. 4.1 SCSI Connection Overview The EonStor A12U and A08U subsystems support 2 SCSI host channels and 2 dualstack connectors featuring support for SCSI-320 protocol (also known as Ultra-320), the latest iteration of the SCSI drive interface standard.
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual Figure 4- 1: SCSI Connectors on the Controller Rear Panel 4.1.3 SCSI Termination Correct SCSI termination procedures require that the last device on the SCSI bus be terminated. If the last device is not terminated or if devices other than the last are terminated, erratic SCSI bus behavior may occur. An auto-detection, on-board terminator is built into the A08/12U-G2421.
Chapter 4: Connection and Operation 4.2 Host Connection Topology 4.2.1 Single Host Figure 4-2: Single SCSI Controller Connected to a Single Host Computer In the example shown in Figure 4-2, the SCSI ports are connected to two adapters on a host computer to provide path redundancy. If one of the host channels becomes disconnected, or if the cable connecting one of the host ports to the host computer is damaged, data flow will be routed through the second path from the subsystem to the host computer.
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual 4.2.2 Dual Hosts Figure 4- 3: Cascaded Subsystems Connected to Two Host Computers In the example shown in Figure 4- 3, the SCSI ports are connected to different host computers. This provides both path and host computer redundancy.
Chapter 4: Connection and Operation Hard drives: Hard drives have been correctly installed on the drive trays. Drive trays: ALL the drive trays, whether or not they have a hard drive, have been installed into the subsystem. Cable connections: The host ports on the subsystem have been correctly connected to host computer(s). Power cables: The power cords have been connected to the PSU modules on the subsystem and plugged into main power.
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual Figure 4- 4: Subsystem Power Switches CAUTION! Although the PSUs are redundant and a single PSU can provide sufficient power to the system, it is advisable to turn both the power switches on. If only one PSU is operating and fails, the whole system will crash. 4.3.
Chapter 4: Connection and Operation 4.3.5 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. Refer to Figure 4- 5 on how to read the screens. Model Name A12U-G2421 Ready Status/Data Transfer Indicator Figure 4- 5: The LCD Initial Screen The LCD screen startup sequence is shown and described in the sequence below: Initializing…. Please Wait...
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual 4.4 Power Off Procedure If you wish to power down the subsystem, please follow these steps: NOTE: If you wish to power down the subsystem, please ensure that no time-consuming processes, like “Regenerate Logical Drive Parity” or a “Media Scan,” are taking place. 1. Stop I/O access to the system Stop all I/O accesses from the host computers to the subsystem.
Chapter 4: Connection and Operation CHAPTER 4 SYSTEM CONNECTION AND OPERATION ...................................................... 1 4.1 SCSI CONNECTION OVERVIEW .................................................................................................1 4.1.1 SCSI Cables .............................................................................................................................1 4.1.2 SCSI Port on the controller rear panel...........................................................
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual 4.3.5 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. Refer to Figure 4- 11 on how to read the screens.
Chapter 4: Connection and Operation 4.4 Power Off Procedure If you wish to power down the subsystem, please follow these steps: NOTE: If you wish to power down the subsystem, please ensure that no time-consuming processes, like “Regenerate Logical Drive Parity” or a “Media Scan,” are taking place. 1. Stop I/O access to the system Stop all I/O accesses from the host computers to the subsystem. Please refer to the related documentation of your host applications and operating system. 2.
Chapter 5 System Maintenance 5.1 Overview 5.1.1 About Subsystem Maintenance Constant monitoring and maintenance of your SATA-based subsystems will minimize the chance of system downtime and preserve the working integrity of the system for a longer period of time. If any of the subsystem plug-in modules fails, 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.
EonStor A08U/A12U-G2421 Installation and Hardware Reference Manual • Qualified engineers who are familiar with the subsystem should be the only ones who make component replacements. If you are not familiar with the subsystems and not familiar with RAID subsystem maintenance in general, it is strongly advised that you refer subsystem maintenance to a suitably qualified maintenance engineer. • Normalized airflow is directly dependent upon the presence of all subsystem components.
Chapter 5: System Maintenance 5.2.2 Notes on Controller Module Maintenance • The controller module contains a DIMM module. It is not recommended to reuse the DIMM module extracted from a failed controller unless you have a similar RAID subsystem that can be used to test the module. You can contact your vendor for sending the failed controller in for repair. • When replacing the controller module, it must be remembered that the controller board is one of the most sensitive components in the subsystem.
EonStor A08U/A12U-G2421 Installation and Hardware Reference Manual Figure 5- 1: Loosen Controller Module Retention Screws Step 5. Pull the controller module out: Once the retention screws have been removed; gently pull the controller module out of the subsystem chassis. 5.2.4 Replacing the Controller Module Step 1. Remove the failed controller module. (See Section 5.2.3 above) Step 2. Install a DIMM module on the new controller module. (See Section 5.5) Step 3. Insert the replacement controller.
Chapter 5: System Maintenance 5.3 Replacing or Upgrading Memory Modules 5.3.1 Memory Module Installation Overview The subsystems come with a pre-installed 256MB (or above) DDR RAM DIMM module on the controller. The controller supports one memory module for the capacity up to 1GB. If a DDR RAM DIMM modules with a different size is preferred or the original memory module has failed in some way, the preinstalled module must be removed and replaced by a new one.
EonStor A08U/A12U-G2421 Installation and Hardware Reference Manual 5.3.3 DIMM Module Installation WARNING! The pre-installed modules must be removed prior to installing new memory modules. Do this with care. Sensitive components can be damaged during the process. If a DIMM module fails or a DIMM module with a higher memory capacity is required, the DIMM module must be replaced. Step 1. Remove the controller module. See Section 5.2.3. Step 2.
Chapter 5: System Maintenance Figure -3: Insert the DIMM Module 5 Step 5. Reinstall the controller module. After the DIMM module has been properly installed, the controller module must be reinstalled. To do this, align the controller module with the controller module bay. Then gently push the controller module in the controller bay. Carefully push the controller until you feel the contact when the board edge connectors are mated to the backplane. Do not use force.
EonStor A08U/A12U-G2421 Installation and Hardware Reference Manual 5.4 Replacing a Faulty BBU IMPORTANT! The BBU is hot-swappable, can be replaced while the subsystem is running. However, a new module will only be recognized after a subsystem reset. Carefully select the time when the reset will be made in order to minimize the overall disruption to service. To replace a faulty BBU, please follow these steps: Step 1. Remove the faulty BBU module from the chassis.
Chapter 5: System Maintenance Step 4. Once the new BBU module is correctly installed into the subsystem, the LED should start flashing, indicates the BBU is being charged. When the BBU is fully charged, the LED will go off. 5.5 Replacing a Failed PSU Module 5.5.1 Notes on PSU Module Maintenance • Two redundant PSU modules: The subsystem comes with two 350W, fully redundant, hot-swappable PSU modules. These modules are accessed from the rear of the subsystem.
EonStor A08U/A12U-G2421 Installation and Hardware Reference Manual Step 3. Remove the retention screw: After the power cable has been removed from the power connector, remove the retention screw at the upper right side of the PSU rear-end panel. (See Figure 5- 7) The screw is located below the extraction lever, beside the LED indicator, and can be hidden from sight. Figure -6: PSU Parts Identification 5 Figure 5- 7: Removing the PSU Retention Screw Step 4.
Chapter 5: System Maintenance Figure 5- 8: Dislodging the PSU Step 5. Remove the cooling module: To do this, push the clips on either side of the module rear panel together. Then gently pull the cooling module out of the lower level of the PSU bracket. (See Figure 511) Figure 5-9: Remove the Cooling Module Step 6. Reinstall the cooling module into the new PSU module: To do this, align the cooling module with the lower level of the PSU bracket and gently slide the cooling module in. Step 7.
EonStor A08U/A12U-G2421 Installation and Hardware Reference Manual enclosure’s rear panel. To firmly secure the PSUs into place, reinsert the retention screw. Step 9. Reconnect the power cord and turn the power on: Plug the power cord into the socket on the PSU module and turn the PSU module power switch on. 5.6 Replacing a Failed Cooling Fan Module 5.6.
Chapter 5: System Maintenance Step 1. To remove the cooling fan module: Squeeze both side latches towards the center of the cooling fan module and gently withdraw the cooling fan module from the subsystem by gently pulling on the silver handle at the bottom. (See Figure 5- 10). Release the module using the latches Figure 5- 10: Removing the Cooling Fan Module WARNING! Forcing or slamming a module into place can damage the connector pins on the module itself or that on the subsystem backplane. Step 2.
EonStor A08U/A12U-G2421 Installation and Hardware Reference Manual Figure 5- 11: Forearm Handle Locking Mechanism Front flap mechanism: Do not leave a drive tray’s front flap open. The front flap and its key-lock secure a drive tray to chassis slot. A disk drive operating with the half-open front bezel may result in signal glitches and Data Compare Errors might ensue.
Chapter 5: System Maintenance 5.7.2 Replacing a Failed Hard Drive To replace a hard drive, please follow these steps: WARNING! Hard drives are fragile. Please always handle hard drives with extreme care. Do not drop the hard drives; always be slow, gentle and careful when handling a hard drive. Only handle the hard drives by the edges, avoid touching any components or connector pins. Step 1. Identify the drive tray that contains the hard drive that needs to be replaced.
EonStor A08U/A12U-G2421 Installation and Hardware Reference Manual Figure 5-13: Drive Tray Key-Lock Rotation Step 4. Remove the drive tray along with the hard drive in it. Once the drive tray is dislodged from the chassis, gently and carefully withdraw the drive tray from the chassis. Step 5. Remove the hard drive from the drive tray: Loosen the four retention screws (two on each side) to remove the hard drive from the drive tray. Step 6.
Appendix A Subsystem Specifications A.
EonStor A08U/A12U-G2421 Installation and Hardware Reference Manual System Weight Net weight: 23.5kg Gross weight: 25.0kg (without disk drives) EMI/EMC • • FCC Class-B CE Safety Requirements • UL • CB Shock Half-sine Operating: 5G peak, 11ms duration Non-operating: 15G, 11ms, half-sine Vibration Operating 0.5oct/min Non-operating 0.
Appendix A: Subsystem Features A.2 Controller Specifications A.2.
EonStor A08U/A12U-G2421 Installation and Hardware Reference Manual A.3 Drive Tray Specifications Specification Height Width Depth Key Lock 28mm 110mm 218.92mm Yes A.4 Power Supply Specifications Specification Nominal Power DC Output Input Frequency AC Input Power Factor Correction Hold-up Time Over-temperature Protection Cooling Fans 350W 12.0V: 25A 5.0V: 25A 3.
Appendix A: Subsystem Features A.
EonStor A08U/A12U-G2421 Installation and Hardware Reference Manual Concurrent rebuild on Multiple Drives in a RAID (0 + 1) Logical Drive Salvage the 2nd Temporarily Failed Drive in a RAID 1, 3 or 5 Logical Drive Salvage the 1st Temporarily Failed Drive in a RAID 0 Logical Drive A-6 Yes Yes Yes Fault Tolerance Management
Appendix B Spare Parts and Accessories B.1 Spare Parts B.1.1 Spare Parts Overview Except the RAID controller module, all the active components in the subsystems can be replaced while the system is running. If any of these components fails then it can, if configured in a fully redundant mode, be hot-swapped. Spare parts for the subsystems can be ordered separately. This section lists the model names for the different spare parts. B.1.
EonStor A12U/A08U-G2421 Installation and Hardware Reference Manual B.1.3 Controller Modules Model Name Description IFT-82AU24GD08 SCSI-to-SATA RAID controller module, 2 x SCSI-320 host channels, 8 x SATA II drive channels. IFT-82AU24GD08-M2 SCSI-to-SATA RAID controller module, 2 x SCSI-320 host channels, 8 x SATA II drive channels, 256MB DDR RAM. IFT-82AU24GD12 SCSI-to-SATA RAID controller module, 2 x SCSI-320 host channels, 12 x SATA II drive channels.
Appendix B: Spare Parts and Accessories B.2 Accessories and Optional Items B.2.1 Accessories Overview A number of accessory items are available for the EonStor A08U/A12U-G2421 subsystem. Some of these accessory items come with the subsystem; but if damaged or if more accessory items are needed, they can be ordered separately. Available accessory items are listed below: B.2.
Appendix C Pinouts C.1. SCSI Port: VHDCI Connector Pinouts The SCSI port connector pinouts comply with specifications in T10 Working Draft, Project 1365D, SCSI Parallel Interface-4.
EonStor A08U/A12U-G2421 Installation and Hardware Reference Manual 27 28 29 30 31 32 33 34 SSEL+ SC_D+ SREQ+ SI_O+ SD8+ SD9+ SD10+ SD11+ 61 62 63 64 65 66 67 68 SSELSC_DSREQSI_OSD8SD9SD10SD11- C.2.
Appendix C Pinouts NOTE: A null modem is used for wire-swap and is necessary for connecting in between COM1CN2 and a PC serial port. C.3. IFT-9011 Null Modem Swap Pin 2 and Pin 3 Swap Pin 4 and Pin 6 Swap Pin 7 and Pin 8 Table -2: Null Modem Pinouts C.4. Ethernet Port Pinouts Figure -2: LAN Port Pinouts 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 -3: Ethernet Port Pinouts C.5. Main Power IEC-type receptacle.
Index -Aaccessory items, 2-6 Air Flow, A-4 Airflow, 2-2 airflow clearance, 2-2 Ambient Temperature, 4-8 array identification, 1-7 audible alarm, 1-14, 3-8, 3-9 Audible Alarm, 3-2 Audio Jack, C-2 authorized battery disposal sites, 2-4 -BBackplane, 1-7 BBU, 1-6, 1-8, 2-9, 4-7, 5-3 BBU module, 1-10, 3-7 BBU Module LED, 3-7 BBU Warnings, 2-3 blower, 1-12 -C- Drive Trays, 3-3 dummy plate, 2-9 -Eejection handle, 5-10 electrostatic discharge, 2-1 Ethernet link, 1-14 ethernet port, 1-9 Ethernet Port, C-3 Ethern
EonStor A08U-C2411 Installation and Hardware Reference Manual lower level, 2-6 -Mmedia scan, 4-11 memory module, 4-7 mini-SCSI connector, 1-9 Model Variations, 1-2 -Nnormalized airflow, 1-15, 5-2 Null modem, C-3 -PPackage dimensions, A-1 PATA drives, 2-11 path redundancy, 4-6, 4-7 Phillips-head screwdriver, 2-9 power cable, 4-8 power cord, 1-11, 2-6 power down, 4-11 power on, 4-7 Power On, 4-7 power socket, 1-11 Power Supply Specifications, A-4 power switch, 1-11 pre-installed components, 2-6 PSU, 1-2,
