Mariusz wrote: > On Fri, Dec 19, 2008 at 02:00:43PM +0000, Karanbir Singh wrote: > >> Mariusz wrote: >> >>> ok, thanks for reply, but logical disk(s) will be the same? after migration? >>> >> Did you ask your vendor / manufacturer of the raid layer ? What did they >> say ? >> >> - KB >> > no, i haven't asked yet, but i'm going to do it. Maybe i should use dd command (create image all logical disk to another disk) and add new 3rd disk, create raid 5 volume and after restore system from dd image? > dd is a sector by sector image of a disk, not very useful for moving file systems. if its e3fs, I'd use dump -> spare storage, rebuild the raid, then restore -> new raid. or tar or cpio or whatever your favorite backup method is that preserves links and stuff.