Resuming a Metro Mirror relationship using DS CLI

Complete this task to resume a Metro Mirror volume pair that has been suspended (paused).

Before you begin, ensure that you have met the following conditions:

The remote mirror and copy license key is installed and enabled to allow operations to be performed. If you are using a Model 2105 ESS as part of the configuration, ensure that you have enabled the PPRC Version 2 license.
The fibre-channel paths are created between all Metro Mirror source and target LSSs. .

When you suspend (pause) volume pairs, Metro Mirror processing stops transferring data to the target volumes. Any I/O operations to the source volume are tracked during this time.

Use this task to resume a suspended (paused) Metro Mirror volume on the specified LSSs. When I/O is resumed, data is sent across to the target volumes.

Perform the following steps to resume Metro Mirror processing with DS CLI commands. 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.

Issue the resumepprc command to continue Metro Mirror processing after it has been suspended (paused). Enter the resumepprc command at the dscli command prompt with the following parameters and variables:

dscli>resumepprc -dev storage_image_ID
-remotedev storage_image_ID -type [mmir, gcp] SourceVolumeID:TargetVolumeID

Notes:

The -remotedev parameter specifies the ID of the secondary storage unit.
Specify the -type parameter when you use the resumepprc command. Otherwise, the command fails.
If you do not specify the fully qualified -dev and -remotedev parameters, you must use the fully qualified SourceVolumeID:TargetVolumeID value. For example: IBM.1750-68FA120/01:IBM.1750-68FA150/01

Example

dscli> resumempprc -dev IBM.1750-68FA120 
-remotedev IBM.1750-68FA150 -type mmir 0100:0100