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Howto clone/migrate a volume in the SAN


 
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Operating Systems Linux Howto clone/migrate a volume in the SAN
# 1  
Old 01-30-2008
Howto clone/migrate a volume in the SAN

Dear Srs,

I have a Linux server (linux01) booting from SAN with a volume in a Nexsan SATAbeast storage array (san01). The disk/volume has four ext3 partitions, total size is near to 400GB, but only 20-30GB are in use.

I need to move this disk/volume to another Nexsan SATAbeast storage array (san02). SATABeast GUI is very simple.. and I haven't any option to migrate, clone, move, etc.. so I need to make this with other tools ;-(

What is the recommended method to make this? I have make this operations early with UNIX tools like rsync, dd, cpio, tar, etc..

I'm planning to use a second Linux server, linux02, and give access to old volume in san01 and the new volume in san02, and clone hard disk in this server. After cloning the drive, re-configure boot from SAN to boot from the new storage array, san02.

I'm looking for a more simple tool to make this type of operations, perhaps a front-end such as G4L, Partimage, Mondo-Mindi, etc..

dd can be a good and simple method, but whats happens when source and destination disk has different size?

Thanks for all the comments and advices!!

Regards,

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pvremove(1M)															      pvremove(1M)

NAME
pvremove - remove LVM data structure from a physical volume SYNOPSIS
DESCRIPTION
The command clears the LVM data structure on a disk, so that it is no longer an LVM physical volume. The device may then be used by the file system or by other volume managers. The operation is denied if pv_path is assigned to a volume group. The command only clears the LVM data structure on a disk if the disk does not belong to a volume group. This avoids accidentally removing a valid physical volume under a volume group. If the physical volume to be removed belongs to a volume group, use the command to first remove the volume group associated with the physical volume. Arguments recognizes the following arguments: pv_path The character (raw) device path name of a physical volume. EXTERNAL INFLUENCES
Environment Variables determines the language in which messages are displayed. If is not specified or is null, it defaults to "C" (see lang(5)). If any internationalization variable contains an invalid setting, all internationalization variables default to "C" (see environ(5)). EXAMPLES
Remove LVM data structure on the physical volume SEE ALSO
lvremove(1M), vgremove(1M), intro(7), lvm(7). pvremove(1M)

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