topic Re: migration SO in Operating System - HP-UX

migration SO

castro_2 — Thu, 10 Apr 2003 11:55:34 GMT

I have two vg's the vg00 with one disk the 4 GB and vg01 with one disk the 8 GB. The last disk is free and the vg00 is almost full. I want to use to create a SO because the other disk (4GB) I need to another system this is the reason that I don`t do a vgextend.
What is the best way to do it?
Thanks

Re: migration SO

Pete Randall — Thu, 10 Apr 2003 11:59:38 GMT

What's an SO?

Pete

Re: migration SO

Pete Randall — Thu, 10 Apr 2003 12:01:20 GMT

If I'm understanding this correctly, you want to take the 4GB vg00 disk out of the first system and use it in another? Use Ignite-UX to take a backup of your existing vg00, then restore it onto your 8GB disk, which will become your new vg00.

Pete

Re: migration SO

Geoff Wild — Thu, 10 Apr 2003 12:08:31 GMT

What about adding the 8GB as another mirror? Then reboot - using the 8gb disk, remove the 4GB from the mirror set, shutdown system, then pull the 4GB disk out.

You need to do something like this to mirror the root:

Mirrored the root lvols:

pvcreate -B /dev/rdsk/c3t6d0
vgextend /dev/vg00 /dev/dsk/c3t6d0
mkboot -l /dev/rdsk/c3t6d0
lvextend -m 1 /dev/vg00/lvol1 /dev/dsk/c3t6d0
lvextend -m 1 /dev/vg00/lvol2 /dev/dsk/c3t6d0
lvextend -m 1 /dev/vg00/lvol3 /dev/dsk/c3t6d0
/usr/sbin/lvlnboot -b /dev/vg00/lvol1
/usr/sbin/lvlnboot -s /dev/vg00/lvol2
/usr/sbin/lvlnboot -r /dev/vg00/lvol3
lvextend -m 1 /dev/vg00/lvol4 /dev/dsk/c3t6d0
lvextend -m 1 /dev/vg00/lvol5 /dev/dsk/c3t6d0
lvextend -m 1 /dev/vg00/lvol6 /dev/dsk/c3t6d0
lvextend -m 1 /dev/vg00/lvol7 /dev/dsk/c3t6d0
lvextend -m 1 /dev/vg00/lvol8 /dev/dsk/c3t6d0
lvextend -m 1 /dev/vg00/lvol9 /dev/dsk/c3t6d0
lvextend -m 1 /dev/vg00/lvol10 /dev/dsk/c3t6d0

Rgds...Geoff

Re: migration SO

Ravi_8 — Thu, 10 Apr 2003 12:12:33 GMT

Hi,

Apart from pete's suggestion, you can also use Mirror.
(if you have mirror unix software)
remove the vg01 (vgremove /dev/vg01)

#vgscan -a -v
#lvextend -m 1 /dev/vg00/lvolx /dev/dsk/cxtxdx
(where cxtxdx is the 8Gb disk)

repeat the above for all lvol's in vg00

set the boot path to 8GB disk, after booting you can remove the 4GB disk

Re: migration SO

castro_2 — Thu, 10 Apr 2003 12:34:37 GMT

The SO is hp-ux 10.20
Tnaks

Re: migration SO

castro_2 — Thu, 10 Apr 2003 13:15:39 GMT

I want to mirror the 4 GB whith 8 GB and then break a mirror.
I can do that
Max PE per PV 2000
Thans

Re: migration SO

Ravi_8 — Thu, 10 Apr 2003 13:50:34 GMT

Hi,

yes, break the mirror and set the boot path to 8gb disk

Re: migration SO

castro_2 — Thu, 10 Apr 2003 14:00:06 GMT

How can unmirror the disk the 4 GB?
lvreduce -m /dev/vg00/lvXX
and the Boot Data.
Thans

Re: migration SO

Ravi_8 — Thu, 10 Apr 2003 14:10:21 GMT

Hi,

For example, if /dev/vg00/lvolx is on /dev/dsk/cxtxdx and you want to move it to /dev/dsk/cytydy,
you can do:

lvextend -m 1 /dev/vg00/lvolx /dev/dsk/cytydy

and then

lvreduce -m 0 /dev/vg00/lvolx /dev/dsk/cxtxdx

Re: migration SO

castro_2 — Thu, 10 Apr 2003 14:12:54 GMT

and the lvlndisk -v only show one disk?
Thanks

Re: migration SO

Ravi_8 — Thu, 10 Apr 2003 14:23:45 GMT

#lvlnboot -v

Re: migration SO

castro_2 — Thu, 10 Apr 2003 14:33:45 GMT

yes, sorry lvlnboot -v only show me one disk o 2 disks

Re: migration SO

Ravi_8 — Thu, 10 Apr 2003 14:35:59 GMT

Could you set the primary boot path to 8GB disk and boot?

Re: migration SO

castro_2 — Thu, 10 Apr 2003 15:10:39 GMT

When I do the mirror the command lvlnboot -v show me 2 disks 4 GB and 8 GB, When I unmirror
Only want to show me the 8 GB, I do the command lvlnboot -v only show me 1 disk 8 GB .
Thanks

Re: migration SO

Pete Randall — Thu, 10 Apr 2003 15:24:15 GMT

Ready to try the Ignite approach yet?

Pete

Re: migration SO

castro_2 — Thu, 10 Apr 2003 19:07:36 GMT

How you set the primary boot path to 8GB disk and boot?
Thanks

Re: migration SO

James R. Ferguson — Thu, 10 Apr 2003 19:19:28 GMT

Hi:

In answer to your question of how to set the primary boot path:

# setboot -p 10/0.6.0

...Use 'ioscan -kfnC disk' to relate the above path to the proper disk on you system.

See the man pages for 'setboot' for more information.

Regards!

...JRF...