lvdisplay Could not query physical volume

[Norville Cole]

I was able to get my disk to boot up, but now I have another problem while booting up it complain about not being able to see the mirror disk that I had removed /dev/dsk/c0t5d0. I have tried vgreduce and it worked fine but when I went to rebuilt the lvmtab file with vgscan it coredump on me
Memory Fault:coredump

[V. Nyga · Accepted solution]

Hi,

what does 'vgdisplay -v' says?
Also you should do 'lvreduce -m 0 /dev/vgxx/lvoly' before vgreduce.
'vgxx' is your volume group, 'lvoly' the different logical volumes.

Maybe also some infos/help here:
http://forums11.itrc.hp.com/service/forums/questionanswer.do?threadId=1193862

HTH
Volkmar

[Torsten.]

I assume this is related to
http://forums12.itrc.hp.com/service/forums/questionanswer.do?threadId=1193807

If you removed the disk in a proper way, all information should be gone.
But likely you did something wrong. What actions you did?

If you still want to mirror the disk, start over.

The right procedure depends on your type of hardware (HP9000 or Integrity).
See the manual for the how-to.

http://docs.hp.com/en/5991-1236/When_Good_Disks_Go_Bad.pdf

If you have a HP9000 system, see appendix A - How to mirror the root volume (PA-RISC servers).

[Mridul Shrivastava]

Why do you want to run vgscan if you have properly reduced the disk from the VG. If it is still present in lvmtab that means u have not executed vgreduce command for that disk.

After lvreduce for all LVs vgreduce has to be executed to remove the disk from VG.