Mirroring rootvg in aix

Mirroring the root volume group should be done very carefully. Because If we don’t do it properly then the server will not boot properly. Do the following steps which will be useful for mirroring the root volume group.

Step 1:
For mirroring the rootvg, the vg should contain an empty hard disk i.e an empty physical volume. This can be done by the following command
#extendvg rootvg hdisk1

Step 2:
Then use the command: #mirrorvg rootvg hdisk1

Step 3:
If we don’t need to backup all the logical volume, then we can use the following command.
#mklvcopy hdisk1

Step 4:
When we use mklvcopy command, we need to issue the command #syncvg.

Step 5:
Initialize all the boot records by issuing the command #bosboot –a

Step 6:
Initialize the bootlist
#bootlist -m normal hdisk01 hdisk11