Huawei OceanStor S2600 Manual
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Huawei OceanStor S2600 Manual

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OceanStor S2600 Storage System
V100R002
Troubleshooting
Issue
03
Date
2010-01-28
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.

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  • Page 1 OceanStor S2600 Storage System V100R002 Troubleshooting Issue Date 2010-01-28 Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 2 All other trademarks and trade names mentioned in this document are the property of their respective holders. Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope.

  • Page 3: Table Of Contents

    5.3 Invalid RAID Group............................5-7 5.4 Turning On of the Disk Alarm/Location Indicator..................5-9 5.5 Turning On of the Fan Running/Alarm Indicator..................5-10 5.6 Turning On of the Power Running/Alarm Indicator..................5-11 Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 4 6.4 Replacing a Disk Module..........................6-5 6.5 Replacing a Fan Module..........................6-8 6.6 Replacing a Power Module...........................6-10 6.7 Replacing an Expander Module........................6-12 6.8 Replacing a BBU Module..........................6-15 A Acronyms and Abbreviations....................A-1 Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 5 Figure 6-8 Install a power module........................6-12 Figure 6-9 Remove the faulty expander module....................6-14 Figure 6-10 Install a new expander module.......................6-14 Figure 6-11 Remove a BBU module........................6-17 Figure 6-12 Install a BBU module........................6-18 Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 7 Table 3-2 Documents list............................3-7 Table 5-1 Network element faults........................5-3 Table 5-2 Module faults............................5-4 Table 5-3 Network management software faults....................5-4 Table 5-4 Service faults............................5-4 Table 5-5 Network connection faults........................5-5 Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 9: About This Document

    About This Document About This Document Purpose This document describes how to troubleshoot the OceanStor S2600 storage system from the aspects of security instruction, troubleshooting preparation, troubleshooting process, principle and methods for locating faults, troubleshooting of common faults, and component replacement.
  • Page 10 Indicates a tip that may help you solve a problem or save time. Provides additional information to emphasize or supplement NOTE important points of the main text. Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 11 For example, click OK. > Multi-level menus are in boldface and separated by the ">" signs. For example, choose File > Create > Folder. Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 12 Updated the troubleshooting of "Failing to Discover Arrays on the ISM". Updates in Issue 02 (2009-11-30) This is the second release. The updated contents are as follows. Bugs revised. Updates in Issue 01 (2009-09-27) Initial commercial release. Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 13: Safety Instruction

    1.6 High-lift Operation When performing high-lift operations, such as installation and maintenance, comply with the regulations to avoid device damage or human injury. Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 14: Warning And Safety Identifier

    The electronic line is very prone to ESD damage. Wear the ESD-preventive wrist strap, ESD-preventive gloves and ESD-preventive clothes properly when handling disks, especially bare disks. Hold only the edge of the disk. Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 15: Laser

    1.4 Short Circuit When installing or maintaining the device, use and put the tools according to the regulations to avoid short circuit as a result of metallic tools. Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 16: Electrical Safety

    Pay attention to the following items during troubleshooting: Do not troubleshoot in the case of lightning. Check that the power cables are intact and effective grounding measures are taken. Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 17: High-Lift Operation

    The high-lift personnel carry the tools with themselves to avoid the falling of tools. Wear helmets and safety straps. Wear warm cloths in cold areas before performing high-lift operations. Check lifted devices involved in the high-lift operations. Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 19: Troubleshooting Preparation

    2.3 Preparing Spare Parts This section describes the spare parts that the on-site engineers should prepare. 2.4 Constructing Remote Maintenance This section describes how to set a remote modem. Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 20: List Of Tools And Instrument

    Be familiar with storage technologies, such as RAID, DAS, NAS, and SAN Be familiar with the FC, iSCSI, and SAS protocols Be familiar with Ethernet Be familiar with TCP/IP Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 21: Preparing Spare Parts

    Disk module Fan module Backup Battery Unit (BBU) module FC jumper Shielded twisted-pair cable 2.4 Constructing Remote Maintenance This section describes how to set a remote modem. Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 22: Figure 2-1 Remote Maintenance Networking

    The remote modem is connected to the serial port of the controller as an answer end. Near-end modem The near-end modem is connected to the serial port of the maintenance terminal as a call end. Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 23: Figure 2-2 Connection Description Dialogue Box

    The system displays the Connect To dialogue box, as shown in Figure 2-3. In the Connect using drop-down list, choose a COM serial port that the remote modem is to use, and click Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 24: Figure 2-3 Connect To Dialogue Box

    The system displays the COM1 Properties dialogue box. In the COM1 Properties dialogue box, set parameters, as shown Figure 2-4, click OK to return to the home interface of the HyperTerminal. Figure 2-4 COM1 Properties dialogue box Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 25 Enter atdt 028XXXXXXXX and press Enter to dial up. When the remote modem and near-end modem successfully dial up to the network, the interface displays words CONNECT baud rate. (For modems from different manufacturers, the interface displays different baud rates.) Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 26: Figure 2-5 Interface After Successfully Logging In

    For security, when you enter a password, there is no local echo. Figure 2-5 Interface after successfully logging in When successfully logging in, go to the CLI mode. Now you can manage and maintain the storage devices. ----End Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 27: Troubleshooting Process

    3.4 Obtaining Technical Support This section describes how to obtain technical support. 3.5 Obtaining the Latest Technical Documents This section describes how to obtain the latest technical documents. Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 28: Process Chart

    Clear the event according to the advice Is the fault cleared? Is the fault removed after Collect the information clearing the event? about the fault Contact technical support center Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 29: Process Description

    SAS disk. disk Blinking The disk is located. No alarm is generated on the disk. Fan module Fan running/alarm Green The fan is normal. indicator Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 30 SAS expander The disk channel is abnormal. port Link indicator of the Green The connection between the FC host port storage system and the AS is normal. Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 31 Fault location finds the single cause among all the possible causes through analysis, comparison, and rule-out. For details on the methods of locating common faults, see 4.2 Common Methods. Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 32: Collecting Information And Recording Information

    3 Troubleshooting Process Troubleshooting Collecting Fault Information When meeting a fault that is difficult to solve, contact Huawei Technologies Co., Ltd. (hereinafter referred to as Huawei). When reporting the fault to Huawei engineers, collect the information about the fault. For details on the requirements on collecting faults, see 3.3 Collecting Information and...

  • Page 33: Obtaining The Latest Technical Documents

    Service E-mail:support@huawei.com 3.5 Obtaining the Latest Technical Documents This section describes how to obtain the latest technical documents. You can obtain the latest technical documents by visiting the website of Huawei. The website is: http://support.huawei.com Table 3-2 lists the document.
  • Page 34 Document Name Description OceanStor S2600 Storage System This document describes how to troubleshoot Troubleshooting the OceanStor S2600 storage system from the aspects of security instruction, troubleshooting preparation, troubleshooting process, principle and methods for locating faults, troubleshooting of common faults, and component replacement.

  • Page 35: Troubleshooting Principles And Methods

    This section describes the principles and methods for locating faults. 4.1 Basic Principles This section describes the basic principles for locating faults. 4.2 Common Methods This section describes the common methods for locating faults. Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 36: Basic Principles

    By analyzing the alarm, you can locate the fault or determine the cause for the fault, or determine the cause for the fault by collaborating with other methods. Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 37: Replacement Method

    The advantages of the replacement method is that this method can locate the fault in detailedly and does not have high requirements on maintenance personnel. Therefore, this method is practical. Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 39: Troubleshooting Of Common Faults

    5.11 Failing to Discover Arrays on the ISM This section describes how to handle the fault that no arrays are discovered on the ISM. 5.12 No Output from the CLI Serial Port Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 40 This section describes how to handle the fault that no available FC link is displayed on the ISM. 5.22 No Available iSCSI Link on the ISM This section describes how to handle the fault that no available iSCSI link is displayed on the ISM. Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 41: Types Of Faults

    Failing to discover LUNs on the AS Failing to communicate between the storage system and the AS Failing to log in to the ISM Module Fault Table 5-2 lists the module faults. Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 42: Table 5-2 Module Faults

    Invalid RAID group Failing to discover LUNs on the AS Turning on of the controller alarm indicator Failing to communicate between the storage system and the AS Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 43: Degraded Raid Group

    . In Logical View, click the RAID group that is degraded. The system displays that the health status of the RAID group is Degrade, as shown in Figure 5-1. Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 44: Figure 5-1 Degraded Raid Group

    RAID group is removed. Cause 2: A member disk of the RAID group is replaced. In the navigation tree, choose the Physical View tab. Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 45: Invalid Raid Group

    . In Logical View, click the invalid RAID group. The system displays that the health status of the RAID group is Fault, as shown in Figure 5-2. Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 46: Figure 5-2 Invalid Raid Group

    In the navigation tree, choose the Physical View tab. Expand the All RAID Groups node and click the icon of the invalid RAID group. The system displays the location of the faulty logical disk. Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 47: Turning On Of The Disk Alarm/Location Indicator

    One of the following causes may arouse the turning on of the disk alarm/location indicator. The disk is badly connected to the backplane. The disk is faulty. Fault Diagnosis You can determine the cause for the fault through the following procedure: Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 48: Turning On Of The Fan Running/Alarm Indicator

    One of the following causes may arouse the turning on of the fan running/alarm indicator: The fan module is badly connected to the backplane. The fan module is faulty. 5-10 Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 49: Turning On Of The Power Running/Alarm Indicator

    The power running/alarm indicator on the power module in the storage system is on. Possible Causes One of the following causes may arouse the turning on of the power running/alarm indicator: Issue 03 (2010-01-28) Huawei Proprietary and Confidential 5-11 Copyright © Huawei Technologies Co., Ltd.

  • Page 50: Failing To Discover Luns On The As

    This section describes how to handle the fault that no LUNs are discovered on the AS. Symptom Mappings and ports are added to the host, but the mapped LUNs cannot be displayed on the AS. 5-12 Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 51: Turning On Of The Controller Alarm Indicator

    This section describes how to handle the fault when the controller alarm indicator is on. Symptom The controller alarm indicator is on and the buzzer generates an alarm. Issue 03 (2010-01-28) Huawei Proprietary and Confidential 5-13 Copyright © Huawei Technologies Co., Ltd.

  • Page 52: Failing To Format Luns

    Step 2 If no data is saved in the invalid RAID group: (1) According to the prompt on the ISM or the fault indicator of the disk module, replace the invalid disk in the RAID group. 5-14 Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 53: Failing To Communicate Between The Storage System And The As

    The fault disappears and service are recovered. Cause 2: The controller is faulty. Replace the faulty controller by a new one. The fault disappears and service are recovered. ----End Issue 03 (2010-01-28) Huawei Proprietary and Confidential 5-15 Copyright © Huawei Technologies Co., Ltd.

  • Page 54: Failing To Discover Arrays On The Ism

    IP address of the current maintenance terminal are in different network segments, then the IP address of teh NIC of the maintenance terminal is incorrect. 5-16 Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 55: No Output From The Cli Serial Port

    Log in to the ISM download interface to download and install the latest version of the ISM. For details, see the OceanStor S2600 Storage System User Guide. Rediscover the system. The arrays to be managed are discovered on the ISM.

  • Page 56: Failing To Log In To The Ism

    Step 1 Uninstall the JRE of the existing version and restart the maintenance terminal. Step 2 Redownload the program of the JRE with the version number jre1.5.0_14 from the device. Install the JRE according to the prompt. 5-18 Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 57: Failing To Dial By The Modem

    After the correct user name and password are entered, the super terminal prompts successful login. Cause 2: The PSTN is unstable. Run the dialing command for many times. Issue 03 (2010-01-28) Huawei Proprietary and Confidential 5-19 Copyright © Huawei Technologies Co., Ltd.

  • Page 58: Invalid Extend Luns

    Step 1 Switch the affected services to another AS. Step 2 Keep the faulty storage system untouched. Step 3 Contact technical support engineers. For how to contact technical support engineers, see Obtaining Technical Support. 5-20 Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 59: Resource Lun Fault

    RAID group where the resource LUN is located is invalid. Procedure Cause 1: The disk enclosure where the resource LUN is located is powered off abnormally. Issue 03 (2010-01-28) Huawei Proprietary and Confidential 5-21 Copyright © Huawei Technologies Co., Ltd.

  • Page 60: Hyperimage Fault

    If the status of the RAID group that owns the HyperImage is Fault, you can determine that the RAID group where the source LUN is located is invalid. 5-22 Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 61: Automatic Termination Of Hyperimages

    Add resource LUNs to the resource pool to expand the capacity of the resource pool, so that enough resource LUNs are available. Delete the faulty HyperImage and recreate a new one. Issue 03 (2010-01-28) Huawei Proprietary and Confidential 5-23 Copyright © Huawei Technologies Co., Ltd.

  • Page 62: Hypercopy Fault

    Cause 3: The RAID group that owns the source LUN or the target LUN is invalid. Log in to the ISM to check whether the RAID group that owns the source LUN or the target LUN is normal. 5-24 Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 63: Failing To Discover The Connected Disk Enclosure

    5.18 Automatic Termination of HyperImages. Delete the faulty HyperCopy and create a new HyperCopy. For details, see the OceanStor S2600 Storage System Online Help. ----End 5.20 Failing to Discover the Connected Disk Enclosure This section describes how to handle the fault that the connected disk enclosure fails to be discovered.

  • Page 64: No Available Fc Link On The Ism

    The FC host port is physically connected to the AS through an optical fiber, but no available link is displayed on the ISM. Possible Causes One of the following causes may arouse the failure of displaying available FC link on the ISM: 5-26 Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 65: No Available Iscsi Link On The Ism

    This section describes how to handle the fault that no available iSCSI link is displayed on the ISM. Symptom The iSCSI host port is physically connected to the AS through a network cable, but no available link is displayed on the ISM. Issue 03 (2010-01-28) Huawei Proprietary and Confidential 5-27 Copyright © Huawei Technologies Co., Ltd.
  • Page 66 According to the correct linear sequence, make a new connector or replace the network cable by a new one. The corresponding iSCSI host port is connected on the ISM or the link indicator is on. ----End 5-28 Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 67: Replacing Parts

    6.7 Replacing an Expander Module This section describes how to replace an expander module. 6.8 Replacing a BBU Module This section describes how to replace a BBU module. Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 68: Getting Prepared

    Confirm the feasibility of the operation. − Ensure that the spare parts are available in the warehouse. When the spare parts are – in short supply, contact Huawei for help. For how to obtain help from Huawei , see Obtaining Technical Support.

  • Page 69: Replacing A Controller

    Before replacing a controller, prepare the following tools: ESD-preventive gloves ESD-preventive wrist strap ESD-preventive clothes ESD-preventive bag Precaution When replacing a controller, pay attention to the following: Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 70: Figure 6-1 Remove A Controller

    Step 6 As shown in Figure 6-2, insert the controller to be installed in the empty slot, and close the spring leafs of the controller. Figure 6-2 Install a controller Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 71: Replacing A Disk Module

    The disk module to be replaced is located. The configuration data is backed up. Tools and Materials Before replacing the disk module, prepare the following tools: ESD-preventive gloves ESD-preventive wrist strap ESD-preventive clothes Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 72: Figure 6-3 Remove A Disk Module

    Management… to go to the Alarm Management interface. Confirm that the disk module is removed on the Current Alarm tab. Step 7 Take the disk module to be installed from the ESD-preventive bag. Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 73: Figure 6-4 Install A Disk Module

    Yes: The installation is complete. On the menu bar, choose Alarm > Alarm Management… to go to the Alarm Management interface. On the Current Alarm tab, choose Recovery Time. The time for recovering the alarm is displayed. Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 74: Replacing A Fan Module

    When replacing a fan module, you must remove the fan module and install a new fan module within one and a half minutes. Do not remove the two fan modules at the same time. Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 75: Figure 6-5 Remove A Fan Module

    Step 4 Take the fan module to be installed from the ESD-preventive bag. Step 5 As shown in Figure 6-6, insert the fan module to be installed in the empty slot. Figure 6-6 Install a fan module Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

  • Page 76: Replacing A Power Module

    The configuration data is backed up. To power module to be replaced is located. Tools and Materials Before replacing a power module, prepare the following tools: ESD-preventive gloves ESD-preventive wrist strap 6-10 Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 77: Figure 6-7 Remove A Power Module

    Figure 6-7 Remove a power module Step 4 Put the removed power module into the ESD-preventive bag. Issue 03 (2010-01-28) Huawei Proprietary and Confidential 6-11 Copyright © Huawei Technologies Co., Ltd.

  • Page 78: Replacing An Expander Module

    After replacing the power module, mark the removed power module for later handling. 6.7 Replacing an Expander Module This section describes how to replace an expander module. 6-12 Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.
  • Page 79 Step 2 Pull the connectors of the mini SAS cable out of the expander module. Step 3 As shown in Figure 6-9, fully open the spring leafs of the expander module in the arrow direction and remove the controller. Issue 03 (2010-01-28) Huawei Proprietary and Confidential 6-13 Copyright © Huawei Technologies Co., Ltd.

  • Page 80: Figure 6-9 Remove The Faulty Expander Module

    Step 8 According to the status of the power indicator and the alarm indicator on the expander module, judge whether the expander module is successfully installed. 6-14 Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 81: Replacing A Bbu Module

    For the S2600 controller enclosure with one controller, services on the controller are migrated. Tools and Materials Before replacing a controller, prepare the following tools: ESD-preventive gloves ESD-preventive wrist strap ESD-preventive clothes ESD-preventive bag Issue 03 (2010-01-28) Huawei Proprietary and Confidential 6-15 Copyright © Huawei Technologies Co., Ltd.
  • Page 82 Step 2 Loosen the screws on the controller enclosures in the anticlockwise direction by using the screwdriver and open the panel, as shown in step ① in Figure 6-11. 6-16 Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 83: Figure 6-11 Remove A Bbu Module

    Step 8 Insert the three cards on one side of the BBU module into the three slots slowly, as shown in step ① to step ② in Figure 6-12. Issue 03 (2010-01-28) Huawei Proprietary and Confidential 6-17 Copyright © Huawei Technologies Co., Ltd.

  • Page 84: Figure 6-12 Install A Bbu Module

    Step 11 Cover the panel and tighten the screws, as shown in the step ⑤ in Figure 6-12. ----End Postrequisite After replacing the BBU module, mark the removed BBU module for later handling. 6-18 Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

  • Page 85: A Acronyms And Abbreviations

    Electromagnetic Compatibility Fiber Channel Internet Explorer International Electrotechnical Commission Internet Protocol OceanStor ISM Integrated Storage Management Logical Unit Number MTTP Mean Time To Repair Network Interface Card Issue 03 (2010-01-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.
  • Page 86 Troubleshooting RAID Redundant Array of Independent Disks Relative Humidity Serial Attached SCSI SATA Serial ATA SCSI Small Computer Systems Interface SNMP Simple Network Management Protocol Underwriters' Laboratories Huawei Proprietary and Confidential Issue 03 (2010-01-28) Copyright © Huawei Technologies Co., Ltd.

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