Forcibly deleting pairs

You need to forcibly delete a pair for the following reasons:

  • A currently unpaired volume that was previously in a pair is unusable because previous pair information is still in the volume.
  • The pair cannot be connected to the secondary storage system due to a communication error. In this case, you need to delete the pair forcibly in both the primary storage system and the secondary storage system.
CautionThe following data is discarded:
  • Data which is not sent to the secondary storage system when a pair in the primary storage system is deleted forcibly
  • Data which is not restored when a pair is deleted forcibly in the secondary storage system

In addition, if a pair is deleted forcibly when a journal contains a pair in the PAIR/COPY status, host I/Os to the pair might time out.

Before you begin

  • The volume must be unpaired.

Procedure

  1. In the Explorer pane, expand the Storage Systems tree.

  2. Expand the target storage system tree, and click Logical Devices.

  3. In the LDEVs tab, select the LDEV belonging to the pair that you want to delete forcibly, and then click More Actions Force Delete Pairs (UR Pairs).

  4. In the Force Delete Pairs (UR Pairs) window, ensure that the volume you want to forcibly delete is in the Selected LDEV table.

  5. Enter a name in the Task Name box.

  6. Click Apply to save your settings to the system.

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