Suspending ShadowImage pairs

Suspending pairs changes the ShadowImage pair status to Suspend/SUSPER. At this time, write I/Os to the P-VOL continue and all tracks of the P-VOL are saved as differential data. When the pair is resynchronized, the pair status changes to Resync/PENDING, and the entire P-VOL is copied to the S-VOL. For a split pair, resynchronization is completed in a short time. But it takes the same period of time for a suspended pair to be resynchronized as the initial copy operation.

The storage system suspends a pair when:

  • it detects an error condition related to an update copy operation
  • it cannot keep the pair mirrored

Procedure

  1. In the Explorer pane, click Storage Systems, expand the storage system tree, and then click Replication Local Replication.

  2. In the Local Replication window, select the SI Pairs tab.

  3. On the SI Pairs tab, select the pair that you do not want to create, click More Actions Suspend Pairs, and confirm the settings.

  4. Accept the default task name or enter a unique name.

    You can enter up to 32 letters, numbers, and symbols, except the following:

    \ / : , ; * ? " < > |

  5. If you want to monitor the task after submitting it, select Go to tasks window for status.

  6. Click Apply to submit the task.

    The pair is suspended (PSUE status).
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