volume group can not actived

[Anh-Thu Tran]

The output of vgdisplay gave me this:
=> vgdisplay vg01
vgdisplay: Volume group not activated.
vgdisplay: Cannot display volume group "vg01".

The /etc/lvmstat shows those disks assigned to vg01:
/dev/vg01
/dev/dsk/c4t0d0
/dev/dsk/c4t1d0
/dev/dsk/c4t3d0
/dev/dsk/c4t4d0
/dev/dsk/c4t5d0
However, the ioscan -fn shows nothing for all 5 disks. The diskinfo command shows:=> diskinfo /dev/dsk/c4t0d0
diskinfo: can't open /dev/dsk/c4t0d0: No such device or address
and same for other disks.
The pvdisplay shows:
=> pvdisplay -v /dev/dsk/c4t0d0
pvdisplay: Warning: couldn't query physical volume "/dev/dsk/c4t0d0":
The specified path does not correspond to physical volume attached to
this volume group
pvdisplay: Warning: couldn't query physical volume "/dev/dsk/c4t1d0":
The specified path does not correspond to physical volume attached to
this volume group
pvdisplay: Warning: couldn't query physical volume "/dev/dsk/c4t3d0":
The specified path does not correspond to physical volume attached to
this volume group
pvdisplay: Warning: couldn't query physical volume "/dev/dsk/c4t4d0":
The specified path does not correspond to physical volume attached to
this volume group
pvdisplay: Warning: couldn't query physical volume "/dev/dsk/c4t5d0":
The specified path does not correspond to physical volume attached to
this volume group
pvdisplay: Warning: couldn't query all of the physical volumes.
pvdisplay: Couldn't retrieve the names of the physical volumes
belonging to volume group "/dev/vg01".
pvdisplay: Cannot display physical volume "/dev/dsk/c4t0d0".


That means I lost all the hdisks assigned for vg01? All 5 disks went bad?

[David Bellamy]

Anh what kind of setup do you have, are you in a service guard cluster ?. if so change that the disks are not mounted on another system.

[Steven E. Protter]

Shalom,

I doubt 5 disks went bad at the same time.

More likely the controller card or cable connecting those disks or other critical part has failed.

Shut down the server, open it up visually inspect and/or open a hardware call.

Probably your data is okay.

SEP

[Jaime Bolanos Rojas.]

Anh-Thu Tran,

I agree with Steven, please just to check run this commands:

ioscan -fnkC disk and see if you see your drives, if you do they are still defined in the kernel.

insf -e, this should reinstall all you special device files, run the ioscan again.

Also you might want to check for led's inside the server pointing at any errors.
You might want to reseat any parts related to the I/O system.
If you have a hardware testing tool I would check on the hardware too.

Regards,

Jaime.

[Victor Fridyev]

According to the disks name this is an external disk storage.
It looks like you have a problem with physical connection to the disks.
Check carefully whether the storage is connected to the power and all cable connections.
After that run
#>ioscan -fnCdisk
and answer with the command output.

HTH

[Anh-Thu Tran]

I have not check the hardware yet, but the command ioscan -fnkC disk does not show 5 disks for vg01. That means there are no c4txdx.

[Torsten.]

I don't know your hardware layout, but if there are all c4txdx devices missing, it looks like a bad cable or HBA. Is ioscan showing you the HBA? if not, it could be the HBA itself or even the slot.

[Jaime Bolanos Rojas.]

I am sure you still have your data in your 5 disks, I would not worry about that since it's almost impossible to loose 5 drives at the same time.

Got it be a hardware issue. If you are using external storage start checking your connections, reseat cables, etc.
If local storage, then shutdown your server and start reseating parts related to your I/O system.

If you feel more comfy, you can open a hardware call to hp so they help you resolve your issue.

Regards,

Jaime.

[Marvin Strong]

Well some basic troubleshooting should point you to the problem in a few short minutes.

ioscan -fnkC disk any NO_HW? or ERROR?
any errors in syslog?
external device, check the cables?
If its fiber look at the fiber do you see the light?

Those would be top priority on my list of things to check.