topic Re: remove volume group with Secure Path in Operating System - HP-UX

remove volume group with Secure Path

Rainer von Bongartz — Wed, 23 Jan 2008 11:57:49 GMT

does anybody have kind of a cook book how to
best remove a volume group which is under control of secure path.

Regards
Rainer

Re: remove volume group with Secure Path

Armin Kunaschik — Thu, 24 Jan 2008 10:15:13 GMT

Volume groups ARE NOT under control of secure path, disks ARE!

Remove the volume group as usual:
1. lvremove any volume
2. vgreduce
3. vgremove
4. rm -r /dev/

Step 3 is necessary to remove any vg headers from all disks. This might be useful if you present the disk to another system.

Remove disk devices with rmsf and unpresent/remove the disk.
I'm not sure, if an /sbin/spmgr delete is necessary instead of the rmsf. Your should give it a try :-)

My 2 cents,
Armin

Re: remove volume group with Secure Path

LucianoCarvalho — Fri, 25 Jan 2008 15:49:10 GMT

You can also run vgexport to remove the vg.

#umount all lvol's from this vg
#vgchange -a n /dev/vgxx
#vgexport /dev/vgxx

Regards

Re: remove volume group with Secure Path

Armin Kunaschik — Wed, 30 Jan 2008 15:19:15 GMT

Use vgexport only, if you want to vgimport later (or you want to throw away the disks)!
If you want to re-use the disks, clean up before you leave! :-)
This may seem cosmetic, but is sometime very anoying.
You present the disks to another host and want to create a new volume group on it...
pvcreate will refuse to work because of a (still) present VG header on the disks.
You're forced to use pvcreate -f.
You do this a few times, start to always use -f and have your first really bad "Oooops, wrong disk"-experience.

My 2 cents,
Armin

Re: remove volume group with Secure Path

Dave Hutton — Wed, 30 Jan 2008 15:25:02 GMT

I basically go with how Armin suggests. But I do use spmgr delete wwn. I find it cleaner, it does remove the special files and spmgr display shows everything correctly.

I think if you don't spmgr delete, it shows it still in spmgr displayed as a failed disk. I guess I've never gone down that route, like I said I use spmgr delete.