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OceanStor 9000 V300R006C10 Parts Replacement 06

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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 a System Disk Module

Replacing a System Disk Module

This section explains how to replace a system disk module for the P25.

Impact on the System

Creating RAID 1 does not affect the system. The system breaks down if RAID 1 is not created.

Prerequisites

  • The new system disk module is ready.
  • The faulty system disk module is located.

Precaution

  • The two system disks cannot be removed simultaneously. If both system disks are removed, the device cannot work correctly.
  • After a system disk is replaced by a new system disk, data on the new system disk will be reconstructed. The reconstruction takes about 4 hours. During the reconstruction, do not remove the other normal system disk. Otherwise, the device cannot work correctly.
  • To avoid damaging the system disk module or connector, use even force and take caution when removing or installing a system disk module.
  • When removing a system disk module, disconnect the connector first and wait for 30 seconds before removing it from the chassis.
  • When removing and inserting a system disk module, ensure that the interval is longer than one minute, that is, after the system disk module is removed, wait at least one minute before inserting the system disk module into the slot, or after the system disk module is inserted, wait at least one minute before removing the system disk module from the slot. In this way, the system disk module will not be damaged.
  • To avoid data loss, only replace the system disk module whose disk alarm/location indicator is steady red.
  • To prevent system failure, do not change a used hard drive into the node.

Tools and Materials

  • ESD gloves
  • ESD wrist strap
  • ESD package
  • Labels

Procedure

  1. Wear the ESD wrist strap or gloves. For details, see Wearing an ESD Wrist Strap in Replacing a Main Control Board Enclosure.
  2. As shown in step 1 and step 2 in Figure 5-4, press the button to eject the disk handle.
  3. As shown in step 2 in Figure 5-4, move the handle outward.
  4. As shown in step 3 in Figure 5-4 pull out the system disk module slowly after 30 seconds.

    Figure 5-4  Removing a system disk module

  5. Put the removed system disk module in an ESD bag.
  6. Take the system disk module to be installed out of the ESD bag.
  7. As shown in step 1 in Figure 5-5, insert the system disk module into the slot.

    NOTE:

    Move the ejectors outward completely; otherwise, the system disk module cannot be completely plugged in.

  8. As shown in step 2 in Figure 5-5, move the handle inward.

    Figure 5-5  Installing a system disk module

  9. After you have installed a system disk module, wait for three minutes and then check the disk alarm/location indicator and disk running indicator to see whether the system disk module is successfully installed.

    • If the disk running indicator is steady or blinking green, and the disk alarm/location indicator is off, the installation is successful.
    • Three reasons may cause the disk alarm/location indicator to turn red:
      • The system disk module is not firmly inserted in the slot. Plug it out and insert it in the slot again. Remove the system disk module by referring to 2 to 4. Wait for one minute and reinsert the system disk module.
      • If the disk alarm/location indicator is still red after the system disk module is removed and reinserted, the system disk module may be faulty. You need to replace the system disk module with another new one.
      • If the disk alarm/location indicator is still red after the replacement, the link of the slot may be faulty. contact the technical support engineers of your vendor.

Follow-up Procedure

Use the KVM to log in to the operating system and run cat /proc/mpt2sas/mpt2sas0-luns to check the system disk RAID status. After a while the status is going to change to active, it means the system disk RAID synchronizing is complete. It will take about 4 hours to complete the synchronizing at most.

node1:~ # cat /proc/mpt2sas/mpt2sas0-luns
LUN_ID Vol_State
0      active

After replacing the system disk module, label the removed system disk module for subsequent handling.

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Updated: 2019-02-25

Document ID: EDOC1000162172

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