[linux-lvm] my volume group disappeared!

[linux-lvm] my volume group disappeared!

[Dan B. Phung]

Hello all, I'm in desperate need of some assistance.  I
used to have 2 volume groups, big_cheese and lil_cheesy1.


  blade01:phung # vgscan
    Reading all physical volumes.  This may take a while...
    Found volume group "lil_cheesy1" using metadata type lvm2
    Found volume group "big_cheese" using metadata type lvm2

but I've been messing with my GFS configuration and rebooting
"spontaneously" (to test the locking setup I have), and now
I'm missing one of my beloved volume groups!


  blade01:phung # vgscan
    Reading all physical volumes.  This may take a while...
    Found volume group "lil_cheesy1" using metadata type lvm2


This is an IBM fastT500/EXP500 SAN, so I can login using their
SMclient facility and I see that the array is still correctly 
configured, and I do see the /dev/sda where the data lives, 
and I can fdisk that device to see my array, but the physical
volume also seems to be missing!

  blade01:phung # pvs
    PV         VG          Fmt  Attr PSize  PFree
    /dev/sdb   lil_cheesy1 lvm2 a-   68.32G 68.32G

any help would be much appreciated.
- dan

Re: [linux-lvm] my volume group disappeared!

[Alasdair G Kergon]

On Wed, Jun 29, 2005 at 12:17:15PM -0400, Dan B. Phung wrote:
> configured, and I do see the /dev/sda where the data lives, 
> and I can fdisk that device to see my array, but the physical
> volume also seems to be missing!
 
check for partition table

Alasdair
-- 
agk@redhat.com

Re: [linux-lvm] my volume group disappeared!

[Dan B. Phung]

On 29, Jun, 2005, Alasdair G Kergon declared:

> On Wed, Jun 29, 2005 at 12:17:15PM -0400, Dan B. Phung wrote:
> > configured, and I do see the /dev/sda where the data lives, 
> > and I can fdisk that device to see my array, but the physical
> > volume also seems to be missing!
>  
> check for partition table

I assume you mean the partitions from the array?  I seem
to still have those:

blade01:root # ls /dev/sda*
/dev/sda  /dev/sda1  /dev/sda2

blade01:root # fdisk /dev/sda

Command (m for help): p

Disk /dev/sda: 513.5 GB, 513557829120 bytes
255 heads, 63 sectors/track, 62436 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1         548     4401778+  82  Linux swap / 
Solaris
/dev/sda2   *         549       62436   497115360   83  Linux
 
> 

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