[clue-tech] RAIDdle me this Batman...

[David L. Willson]

Keith,

I don't know whether RAID layouts are same/similar across hardware.  I'd guess not, with enough confidence not to spend the time it would take to find out for sure.  Can I suggest a possible solution anyway?

1) grab a drive that's larger than the mirror members

2) attach the large drive and a working member of the mirror set to a box running a recent version of Linux

3) dd the mirror member disc to the larger drive (whole disc, ie: dd if=/dev/sda of=/dev/sdb conv=noerror,null)

4) detach the mirror member

5) update the in-memory partition tables (partprobe)

6) try using mdadm commands to detect/repair/forcibly start the borken mirror copy on the large drive

Failing that, eBay up another of those firewire boxes.

David L. Willson
Trainer, Engineer, Enthusiast
MCT, MCSE, Linux+
tel://720.333.LANS
Freeing people from the tyranny (or whatevery) of Microsofty-ness, one at a time.

----- "Keith Hellman" <khellman at mcprogramming.com> wrote:

> Hello all.  I've got a friend who has had an old firewire device
> fail on him.  My understanding is that it is a NAS like device, uses
> RAID0, but it just uses firewire instead of ether.
> 
> So, it's failed, and he would (of course) like to get some data off
> the
> drives.  He has backups, but they are a week old and that last week
> is
> the killer.
> 
> Here is my question:  is the block layout of RAID drives
> standardized?
> Can we throw these two drives onto *any* RAID0 capable controller
> (perhaps even Linux software raid?) and get the file system back?
> 
> Or do we have to find to find a box/mobo with the same RAID
> controller?
> 
> TIA for the help,
> -- 
> Keith Hellman                             #include <disclaimer.h>
> khellman at mcprogramming.com                from disclaimer import
> standard
> khellman at mines.edu
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