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Unused status for LUN0 (FC60)

 
meekrob
Super Advisor

Unused status for LUN0 (FC60)

Hello,

I have a problem with a LVM Structure
In fact my config is FC60 + 3 * SC10 in stripe mode.

The file systems on the LUN0 ( VG02) are not mounted and the “USE” status via SAM for the LUN0 is marked as “ unused” instead of “LVM”.

When I tried to activate the volume group, the system display an error message
Can’t attached to the logical volume /dev/dsk/c5t0d0 and c7t0d0.
Note that this problem accrued after a power disconnection.

There is a method that we can change the status from unused to LVM and remount the file system without losing the data????

Rgds
4 REPLIES 4
Devender Khatana
Honored Contributor

Re: Unused status for LUN0 (FC60)

Hi,

What does diskinfo report for this device?

#diskinfo -v /dev/rdsk/c5t0d0

#diskinfo -v /dev/rdsk/c7t0d0


Also it seems that the logical device have failed and will show hardware state as NO_HW in ioscan

#ioscan -fnC disk

Once the failed LDEV is recovered there will not be any problem in mounting the file systems and activating the VG.

HTH,
Devender
Impossible itself mentions "I m possible"
meekrob
Super Advisor

Re: Unused status for LUN0 (FC60)

Hi

The diskinfo /dev/rdsk/c5t0d0 and /dev/rdsk/C7t0d0 seams ok

The result of the ioscan -fnC disk for the disks C7t0d0 and c5t0d0 is CLAIMED FOR BOTH

Devender Khatana
Honored Contributor

Re: Unused status for LUN0 (FC60)

Hi,

The status will by itself changed to LVM when the VG will be activated. Test this on some test server as well if required.

Allthough the problem in attaching disk to VG is either the LUN has some problem or the device file has changed.

What is the output of diskinfo ?

What happen if you try to import the VG of these two disks.

HTH,
Devender
Impossible itself mentions "I m possible"
geeta
Frequent Advisor

Re: Unused status for LUN0 (FC60)

Hi,


heres the link to the User guide for FC60 and check pd 222 of this guide for an answer to your problem.

http://h20000.www2.hp.com/bc/docs/support/SupportManual/lpg28374/lpg28374.pdf

The cause of the problem is disconnecting the power.

But pg222 on this document will explain it and if the need be u can contact HP support for further help. YOu will need to replace the failed disks.

HTH

Geeta :)