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Parts Replacement 12

OceanStor 18500 V3 and 18800 V3 Mission Critical Storage System V300R003

This document describes the procedure for replacing the parts of storage system in terms of safety operations, preparations, and precautions.
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Replacing an Expansion Module

Replacing an Expansion Module

This section describes how to replace an expansion module.

Impact on the System

During the replacement of an expansion module, the system switches services from ports on this module to ports on a peer-end expansion module. A back-end port has no other redundant links, and disks in the loop all run with a single path, causing the system reliability to degrade. You are advised to replace an expansion module during off-peak hours.

Prerequisites

  • The replacement expansion module is ready.
  • The expansion module that you want to replace has been located.
    NOTE:
    You can locate a component in either of the following ways:
    • Log in to DeviceManager, and go to the System page. On the System page, check the device view and locate the position of the component to be replaced. If the component has a location indicator, turn on the indicator. (For details about how to turn on a location indicator, see the online help of DeviceManager.)
    • Use the alarm indicator of the component to locate its component.
  • You have confirmed that the cables of the expansion module to be replaced are properly connected using Huawei Storage Networking Assistant. (http://support.huawei.com/onlinetoolsweb/sna/?language=en)
  • The cable connection positions of the expansion module are labeled on the cables.
  • The cables have been disconnected from the expansion module that you want to replace.
    NOTE:

    Before removing a SAS cable, gently push the connector of the cable inward. Then pull the plastic ring on the connector outward and hold the plastic ring while removing the cable.

Precaution

  • When only one controller exists, all running services must be stopped before replacing the expansion module.
  • Remove and insert an expansion module with even force. Excessive force may damage the appearance or connectors of the expansion module.
  • An expansion module must be replaced within five minutes. Otherwise, the system heat dissipation is compromised.

Tools and Materials

  • ESD wrist strap
  • ESD bag
  • Label

Procedure

  1. Check system status before replacement.
    1. Perform a system status inspection.

      Start SmartKit. On the homepage, choose MyTools > Storage > Parts Replacement > Inspection. The Inspection Wizard step 5-1:Welcome page is displayed after you go to the Inspection page. On the wizard, select Routine inspection and perform the inspection as instructed by the wizard.

      For details, you can click .

      NOTE:

      If some items fail the inspection, rectify the faults by performing the recommended actions in the inspection reports. Ensure that all other parts except the parts to be replaced are working correctly.

    2. Perform a pre-replacement inspection.

      On the homepage, choose MyTools > Storage > Parts Replacement > FRU Replacement. On the FRU Replacement page, select the part that you want to replace and perform the pre-replacement inspection as prompted. For details, see Using SmartKit for Parts Replacement (Recommended).

      You can proceed to next step only when all items pass the pre-replacement check and the replacement page is displayed. If any item fails, rectify the fault by taking recommended actions in the inspection reports.

  2. Wear an ESD wrist strap.
  3. Press latches on the expansion module to release the handles and pull out the expansion module, as shown in Figure 5-1.

    Figure 5-1  Removing an expansion module

  4. Place the removed expansion module into an ESD bag.
  5. Take the replacement expansion module out of its ESD bag.
  6. Open the handles of the replacement expansion module, insert the expansion module into the empty slot, and close the handles, as shown in Figure 5-2.

    Figure 5-2  Installing an expansion module

  7. Connect the cables.
  8. Wait about two minutes and check the status of the Power and Alarm indicators on the expansion module to determine whether the expansion module is successfully installed. Figure 5-3 shows the locations of the Power and Alarm indicators.

    • If the Power indicator is steady on and the Alarm indicator is off, the expansion module is successfully installed.
    • If the Power indicator is off or the Alarm indicator is steady on, the newly installed expansion module is faulty, the expansion module slot is faulty, or the expansion module is incorrectly installed.
    Figure 5-3  Indicators on an expansion module

    1

    Alarm indicator of the expansion module

    2

    Power indicator of the expansion module

  9. Confirm the replacement.
    1. Perform a post-replacement inspection.

      After the replacement, on the SmartKit page, click Replaced. Perform the post-replacement inspection as prompted.

    2. Check the system status after the replacement.

      Check the system status again on the Inspection page after the replacement. If any inspection item fails, rectify the fault based on the suggestions.

    3. Check services on a host for any storage-related error.

Follow-up Procedure

After the expansion module is replaced, label it to facilitate subsequent operations.

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Updated: 2019-05-15

Document ID: EDOC1000084105

Views: 21375

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