also, if the disk is multi-disk, which is the case here, you can look into /etc/lvm/backup for LVM meta data information.
----- Original Message -----
| Hello all
|
| I have two sets of eIDE hard drives from earlier servers, one centos &
| one fedora. Both were LVM volumes with three or four physical disks,
| with ext3 fs. One disk, maybe even the boot one may even be missing,
| either from one or both sets and we do not know the disk order. I got
| these left from an earlier sysadmin who left the company & nobody know
| what's what.
|
| I need to recover data so I need to backup each of the disks to a disk
| image file first, then find block-size/recover lvm metadata on the
| volume, mount the volume to my current server and recover whatever
| files can be recovered manually.
|
| My question is:
|
| - what switches to be used with dd in creating the image, so that I
| retain the lvm disk data, for future recovery, if I mess up the
| recovery job? Can you please give the actual command assuming disk is
| connected at /dev/sdb?
|
| - How do I find the blocksize used by the disk & how do I get the
| meta-data and mount the disk to current lvm fs.
|
| Request please give me step by step process. I am finding the howtos &
| examples on the net very daunting as most of them have co-issues of
| raid etc. Mine is a plain lvm spanning multiple disks.
|
| I don't have expertise of this level & suddenly my boss is expecting
| me to perform a miracle.
|
| Please help.
|
| With best regards.
| Sanjay.
| _______________________________________________
| CentOS mailing list
| CentOS@xxxxxxxxxx
| http://lists.centos.org/mailman/listinfo/centos
--
James A. Peltier
IT Services - Research Computing Group
Simon Fraser University - Burnaby Campus
Phone : 778-782-6573
Fax : 778-782-3045
E-Mail : jpeltier@xxxxxx
Website : http://www.sfu.ca/itservices
http://blogs.sfu.ca/people/jpeltier
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