Thursday 24 November 2011

Adding mirroring to the root vg - HP Unix

1. pvcreate -B /dev/rdisk/c2t2d0
Create the PV on the second disk so that LVM can manage it
-B makes it a bootable volume

2. mkboot /dev/rdsk/c2t2d0
Installs the boot files on the second disk

3. mkboot -a "hpux-lq (;0)/stand/vmunix" /dev/rdsk/c2t2d0
Creates an autoboot file on the disk, with information on how to boot

4. vgextend /dev/vg00 /dev/dsk/c2t2d0
extends the volume group to include this second disk.

5. vgdisplay -v vg00
To verify that the second disk is now part of the volume group

6. lvlnboot -v
To verify that the system thinks this disk can boot

7. lvextend -m 1 /dev/vg00/lvol1 /dev/dsk/c2t2d0
This extends the logical volume to the mirrored disk, effectively creating the mirrored copy.
This command needs to be run for each logical volume in the volume group

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