Performing a failback recovery operation

Complete this task to perform Global Copy failback processing for the A volumes. This process resynchronizes the volumes at Site A with volumes at Site B and restarts mirroring from site A (local site) to site B (remote site).

You must first create a remote mirror and copy volume pair. Before you run the failback operation, the volumes must be full duplex.

The failbackpprc command copies the required data from the source volume to the target volume in order to resume mirroring. The failover process converted the full-duplex target volumes at site A to suspended source volumes. The volumes at site A started the change recording process while in failover mode.

The failback processing that is described in this task can be issued against any remote mirror and copy volume that is in a primary suspended state. The failback processing copies the required data from the source volume to the target volume in order to resume mirroring.

Perform the following step to perform a failback recovery operation. The example commands in this task are shown in two formats. The first format shows the type of information that the command requires. The second format provides the command with declared values for the variables.

  1. Issue the failbackpprc command to perform a failback recovery operation. Enter the failbackpprc command at the dscli command prompt with the following parameters and variables:

    dscli>failbackpprc -dev storage_image_ID -remotedev storage_image_ID SourceVolumeID:TargetVolumeID

    Example

    dscli>failbackpprc -dev IBM.1750-68FA120 -remotedev IBM.1750-68FA150
     0100-0103:0100-0103 
  2. Issue the lspprc command to check the status information of each Metro Mirror relationship in the list. Enter the lspprc command at the dscli command prompt with the following parameters and variables:

    dscli>lspprc -dev storage_image_ID -remotedev storage_image_ID -s
    SourceVolumeID:TargetVolumeID

    Example

    dscli>lspprc -dev IBM.1750-68FA120 -remotedev IBM.1750-68FA150
     -s 0100:0100 0200:0200 0300:0300 
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