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 at centos.org | 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 at sfu.ca Website : http://www.sfu.ca/itservices http://blogs.sfu.ca/people/jpeltier