missing vg

[mit_3]

I use an rp3440 attached to MSA30 Disk array of 8 Disks, mirrored 4-4. After a power failure on the MSA, the machine can boot normaly but can not mount the volumegroups vg01 and vg02 which reside on the Disk array. Physiscaly the disks are fine and i can see them with ioscan command. I have oracle database on them and i don't want to lose any of the data. How can I reattach these vg's?

[Rick Garland]

Are these VGs not activated? If you run the 'vgdisplay -v' command do these VGs show in the output?

[mit_3]

When I do vgdisplay -v they do not show for both vg's. The message is:
Vgdisplay: volume group not activated
Can not display volume group /dev/vg01

[Geoff Wild]

vgchange -a y vg01
vgchange -a y vg02

Then

mount -a

Your server may have come up before the array did.

Rgds...Geoff

[Peter Nikitka]

Hi,

to activate a VG, use

vgchange -a y /dev/vgXX

mfG Peter

[Rick Garland]

If the VGs are not active, you will need to activate with the commands listed above.

Then you can mount them.

[mit_3]

Trying to activate i get this
# vgchange -a y /dev/vg01
vgchange: Warning: Couldn't attach to the volume group physical volume "/dev/dsk
/c4t0d0":
Unknown error
vgchange: Warning: couldn't query physical volume "/dev/dsk/c4t0d0":
The specified path does not correspond to physical volume attached to
this volume group
vgchange: Warning: couldn't query all of the physical volumes.
vgchange: Couldn't activate volume group "/dev/vg01":
Quorum not present, or some physical volume(s) are missing.

[Torsten.]

Hi,

try

vgchange -a y -q n vg01

to activate the VG. Investigate the missing disk - could be broken.

[Rick Garland]

Missing disks? Incorrect device names?

Further investigation is needed.

Did the device names change for the disks on the reboot?

[mit_3]

hi
followin the instructions I entered:

# vgchange -a y -q n vg01
vgchange: Warning: Couldn't attach to the volume group physical volume "/dev/dsk
/c4t0d0":
Unknown error
vgchange: Warning: couldn't query physical volume "/dev/dsk/c4t0d0":
The specified path does not correspond to physical volume attached to
this volume group
vgchange: Warning: couldn't query all of the physical volumes.
vgchange: Couldn't activate volume group "vg01":
Quorum not present, or some physical volume(s) are missing.