Logical Volume need to recover

[Arockiasamy]

Hello Everybody,

We have one HP R-9000, D390 server with HPUX B11.00,
its having 2 internal HDD & one external stotage having 2 HDD ( 2*36GB).
file system crashed due to power problem.
So, we need to reload the system.
But, the thing we have the data in the external storage. I don't have lvmtab file.

Before File system crash, 2 HDD created as a PV and thats were in vg02 having one logical volume lvol0.
mounted as /oradb.

I need the data which is in the /oradb.

I've reloaded the OS.

How to recover? pleaes help me shortly...

[Suraj K Sankari · Accepted solution]

Hi,

Do you have any bakcup ?
do you have any old nikel output ?
if yes there you can find lvmtab

Suraj

[singh sanjeev]

check for old vgmapfile in /etc/lvmconf.

where u can find the vg02.mafile and trying doing vgimport to re-create the lv

[Arockiasamy]

Thank U for your reply.
But I got the solution.

1. mkdir /dev/vg02 ; cd /dev/vg02
2. mknod group c 64 0x010000
3. vgscan -v
4. vgimport -v vg02 /dev/dsk/c0t0d0 /dev/dsk/c0t1d0
5. vgchange -a y vg02
6. mkdir /oradb
7. mount /dev/vg02/lvol1 /oradb
8. edit the /etc/fstab ( take backup also )

No data lose. i got full data.

[Victor Fridyev]

Hi,

Try this:

1. Backup /etc/lvmtab as: mv /etc/lvmtab /etc/lvmtab.good
vgscan

2.If this procedure does not find vg on the external disks, do the following:

ioscan -kfnCdisk and find your external disks
mkdir /dev/vg02
mknod /dev/vg02/group c 64 0x020000
vgimport /dev/vg02 /dev/dsk/xxx /dev/dsk/yyy

where yyy and xxx are actual disk names.

vgchange -a y vg02
mount /dev/vg02/lvol1 /oradb

HTH