add new disk and change disk on vg00 or vg01 need help please

[kate32]

Hello

If I want to change the disk on vg00 (system mirror) without outage but with new disks bigger size is it possible ?

I thought if we following these steps I don't know if it will work onhp-ux (11.00 / 9000/800)

1- Check the boot definition
# lvnlboot –v
# setboot

2- unmirror the volume group vg00
There is no command on hp-ux ? (on aix it is unmirrorvg vgname hdiskname …)
# lvreduce –m 0 –A n /dev/vgname/lvname pvname

Do we have to put –m 0 or -m 1? I don’t understand this if I have 2 disk on vg00 and mirrored.

3- extend vg00 with the new disks (bigger size 36GB actual size of the current disks 8GB)
(First create the new disks: # pvcreate /dev/rdsk/cntmd0 etc…)
# vgextend /dev/vg00 /dev/dsk/cntmd0
# vgextend /dev/vg00 /dev/dsk/cn’tm’d0

4- copy disk to disk the data
Let say vg00 have the 2 disks: cxtxd0 and cytzd0 and 2 new disks cntmd0 and cn’dm’d0
Do we have to do like this below?
# pvmove /dev/dsk/cxtxd0 /dev/dsk/cntmd0
# pvmove /dev/dsk/cytzd0 /dev/dsk/cn’tm’d0

5- reduce the vg of the old disks
# vgreduce vg00 /dev/dsk/cxtxd0
# vgreduce vg00 /dev/dsk/cxtxd0

6- mirror the volume group vg00
No command to mirror a volume group? On AIX we use the command mirrorvg vgname
Have to do something like this on HP-UX ?
for LV in /dev/vg00/lv*
do
lvextend -m 1 $LV
done


7- Rebuild the boot disk image
On AIX we do this:
# bosboot -ad /dev/hdisk0
the check the bootlit:
# bootlist –m normal –o

But don't know how to do it on hp-ux … if someone can help me


8 - Make a system backup (make_tape_recovery)

Did I miss a step?

Thanks in advance

Cheers
Kate