Replacing drives (Cloud)

Virtual Storage Platform One SDS Block Storage Administrator Guide
Version
1.17.x
Audience
anonymous
Part Number
MK-24VSP1SDS002-04

Replace the faulty drive.

  • Required role: Storage

  1. Perform step 2 to step 17 in Replacing drives (Cloud) in the VSP One SDS Block System Administrator Operation Guide.
  2. Perform step 4 to step 6 in Adding drives.
    CAUTION:

    Before going to step 3, verity that a faulty drive to be removed exists. If a faulty drive to be removed does not exist, perform only step 10, and end the procedure.

    If you replace multiple drives at the same time, perform the operation for each drive. When step 2 is completed for all the drives, continue the procedure from step 3.

    Verify that the drive to be added is a new drive, not the faulty drive detached in step 1.

  3. Click the information icon on the navigation bar, and then select Storage Cluster Information.

    Obtain information about the storage cluster to verify the state of the write back mode with cache protection.

    Take the following action according to the state of the write back mode with cache protection (WRITE BACK MODE WITH CACHE PROTECTION).

    State of the write back mode with cache protection

    Action to be taken

    Enabled

    Go to the next step.

    Disabled

    Go to step 5.

    Enabling

    Enable the write back mode with cache protection according to Enabling the write back mode with cache protection in the VSP One SDS Block System Administrator Operation Guide, and then go to the next step.

    Or, cancel the enabling the write back mode with cache protection, and then go to step 5.

    Disabling

    Disable the write back mode with cache protection according to Disabling the write back mode with cache protection in the VSP One SDS Block System Administrator Operation Guide, and then go step 5.

    Or, cancel the disabling the write back mode with cache protection, and then go to the next step.
  4. In the Storage Cluster Information dialog, verify the summary of metadata redundancy for cache protection in write back mode with cache protection.

    Confirm the user data protection type (REDUNDANT POLICY) in the Storage Pool window.

    Verify whether the summary of metadata redundancy for cache protection in the write back mode with cache protection (METADATA REDUNDANCY SUMMARY) meets the conditions shown in the following table.

    User data protection type

    (REDUNDANT POLICY)

    Condition

    4D+2P

    The value of METADATA REDUNDANCY SUMMARY is 2.

    Duplication

    The value of METADATA REDUNDANCY SUMMARY is 1.
    • If the conditions are met, go to the next step.
    • If the conditions are not met, take action as follows. Then, go to the next step.
      • If the VSP One SDS Block Administrator displays "Alerting" for "Health Status" of a storage node, take action as described in If a health status error is detected in the VSP One SDS Block Administrator in the VSP One SDS Block Troubleshooting Guide.
      • If there are storage nodes whose STATUS is MaintenanceBlockage in the Storage Nodes list tab (in the Storage Nodes window), perform maintenance recovery for the nodes according to the procedure in Performing maintenance recovery for storage nodes.
      • If the KARS06596-E event log is output, take action according to the instruction, and then wait until the metadata redundancy for cache protection is recovered.
    CAUTION:

    If the storage node is blocked, the metadata redundancy for cache protection is not recovered unless the storage node is recovered by maintenance operation. Recover the blocked storage node first by performing maintenance operation.

  5. Determine whether Rebuild operation is being performed or whether an error has occurred during Rebuild operation by confirming the Protection Domain window.

    If Rebuild operation is not being performed and no error has occurred, go to the next step.

    If Rebuild operation is being performed or an error has occurred during the Rebuild operation, confirm the following status, and then take appropriate action.

    • REBUILD STATUS

      • Stopped: Status in which Rebuild operation is not being performed.

      • Running: Status in which Rebuild operation is being performed. The Rebuild operation cannot be stopped. Wait until the Rebuild operation is completed, and then verify the Rebuild status in the Protection Domain window again.

      • Error: Status in which Rebuild processing cannot be performed due to an error. Verify the event logs and perform troubleshooting.

    • REBUILD PROGRESS RATE

      Shows the progress rate (%) of Rebuild operation. The progress rate is updated when it fluctuates by 1 point or more. (When progress is made in a short period of time, such as when Fast Rebuild is performed, the progress rate might be updated by several points rather than by 1 point.)

  6. Remove the drive in the Drives list window or Drive detailed information window by either of the following means.

    A drive can be removed when STATUS of the drive to be removed is "Blockage."

    • In the Drives list window, select the drive to be edited (1 to 25 drives), click the preceding icon to the right of the Monitor link icon, and then select Remove Drives.

    • Click the preceding icon displayed for the drive to be edited in the Drives list window (displayed as inventory view), and then select Remove Drives.

    • Click the preceding icon in the Drive detailed information window for the drive to be edited, and then select Remove Drives.

    The drive removal dialog is displayed.

  7. Verify the displayed information, and then click Submit.

    The drive removal dialog is closed and drive removal is performed.

  8. When the following "Completed" message is displayed, processing is completed.
    • Successfully removed drives.
  9. In the Drives window, verify that STATUS of the faulty drive to be removed is "Offline."