Unmirroring of Operating System in IBM AIX and Hp_Unix

IBM AIX:

1) # lsvg -m rootvg : Check the volume group is mirrored or not.

2) # lsvg -p rootvg : Check the physical volume that belong to the volume group.

3) # lsvg rotvg : Ensure that there are no stale partitions on the volume group.

4) # unmirrorvg rootvg hdisk# : Command to un mirror the Operating System from the mentioned hdisk#.

5) # lsvg -m rootvg : Check the volume group is mirrored or not.

6) # chpv -c hdisk# : Command to clear the boot image from the physical volume.

7) # reducevg -d -f rootvg hdisk3# : Command to remove the hdisk# from the root volume group.

Hp_Unix:

1) # vgdisplay -v vg00 | grep "PV Name" : Command to view the Physical volume of the OS volume group.

2) # vgdisplay -v vg00 | grep "LV Name" : Command to view the Logical volumes on the OS volume group.

3) # lvdisplay -v <lv_name> : Command to view the logical volume distribution over the physical volume.

4) # lvreduce -m 0 <logical_volume_name> <physical_volume_name> : Command to unmirror the OS volume group.

5) # lvlnboot -R : Command to refresh the boot table.

6) # lvlnboot -v : View the updated boot list.

7) # vgreduce vg00 /dev/dsk/c#t#d# : Command to remove the disk from the OS volume group.

8) Remove the disk entry from the file "/stand/bootconf"...