Complete this task to convert Global Copy volume
pairs to synchronous (Metro Mirror volume
pairs).
Before you begin, ensure that the license for the remote mirror and
copy feature is activated. Paths are required between the source and the target
LSS storage units for the volume pairs.
There are two common situations where you would convert a
Global Copy volume pair to a
Metro Mirror volume
pair:
- You have used the Global Copy function
to complete the bulk transfer of data in the creation of many copy pairs,
and you now want to convert some or all of those pairs to Metro Mirror mode.
- You have Global Copy pairs
for which you want to make FlashCopy backups on the remote site. You convert
the pairs temporarily to synchronous mode to obtain a point-in-time consistent
copy.
If you created a Global Copy volume
pair where the source volume was associated with a 1750 and
the target volume was associated with an ESS 2105 Model 800 or 750, you can
convert that volume pair to synchronous.
Perform the following step
to convert Global Copy volume
pairs to synchronous (Metro Mirror volume
pairs). 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 mkpprc command to convert Global Copy volume
pairs to synchronous (Metro Mirror volume
pairs). Enter the mkpprc command with the -type mmir parameter
at the dscli command
prompt with the following parameters and variables: dscli>mkpprc -dev storage_image_ID -remotedev storage_image_ID -type mmir SourceVolumeID:TargetVolumeID
Example
dscli>mkpprc -dev IBM.1750-68FA120 -remotedev IBM.1750-68FA150
0100:0100 -type mmir 0101:0101 0102:0102 0103:0103