The steps for configuring mirror pools for LVM split-site
mirroring for an existing volume group depend on the properties of
the volume group and the locations of the disks in the volume group.
About this task
To configure mirror pools for LVM split-site mirroring for
an existing volume group, complete the following steps:
Procedure
- Verify that the disks are visible at all locations by running
the cfgmgr command and the chdev command.
- Identify the type of the volume group.
- If the volume group is not a scalable volume group, go to step 3.
- If the volume group is a scalable volume group, go to step 7.
- From the command line, enter
smit cl_vg.
- From the SMIT interface, select .
- Select the volume group, and press Enter.
- Change the Mirror Pool Strictness field
to Superstrict, and press Enter.
Note: You
can specify other volume group parameters in any of the available
fields.
- Identify the disks at each location and place
them in location-specific mirror pools.
- If you want to add disks to the volume group, continue
to step 9; otherwise, the configuration is
complete.
- Navigate to the Volume Group panel, and select Set
Characteristics of a Volume Group.
- Select Add a Volume to a Volume Group.
- Select the volume group for which you want to configure
mirror pools for LVM split-site mirroring.
- Select all disks at the other location that will be in
the volume group.
- Specify a name for the mirror pool at this location and
press Enter.
Note: If you have a third location for LVM
split-site mirroring, repeat step
9-13.