If you need to access target volumes or perform maintenance on a
remote storage unit, you can pause (or suspend)
Metro Mirror volume
pairs. This task pauses a
Metro Mirror volume
pair that you specify, and data is not copied to the target volume. The source
storage unit keeps track of all changed data on the source volume, and after
you resume the connection, only changes to the source volume are copied to
the target volume.
Perform the following steps to pause 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 pausepprc command to pause Metro Mirror processing.
Enter the pausepprc command at the dscli command prompt using the following
parameters and variables: dscli> pausepprc -dev storage_image_ID_-remotedev storage_image_ID
SourceVolumeID:TargetVolumeID
Note: - The -remotedev parameter specifies the ID of the secondary storage
unit.
- If you do not specify the fully qualified -dev and -remotedev parameters,
you must use the fully qualified SourceVolumeID:TargetVolumeID value.
For example: IBM.1750-75FA120/01:IBM.1750-68FA150/01.
Example: dscli> pausepprc -dev IBM.1750-68FA120
-remotedev IBM.1750-68FA150 0100:0100
A confirmation message is
displayed that indicates that processing for the specified volume pair has
been paused.