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Re: what does /dev/sdf look like?

On Tue, Jul 29, 2008 at 08:42:46PM +0100, Pigeon wrote:
> On Tue, Jul 29, 2008 at 08:32:48PM +0200, randall wrote:
> > a silly question here, but i'm just going through the disaster
> > recovery procedure....and what to do in case of harddisk failure.
> > 
> > i have a nice raid setup, and its no problem to recognize which
> > /dev/sdX has dropped out of the array, but how do you physically
> > identify for example /dev/sdf when opening the box and have 6 disks
> > to choose from?
> > 
> > i can't be the first with this question so i just wonder what "rules
> > of thumb" others use.
> Look at the SCSI ID selection jumpers on the drives. The lowest ID
> (which may be 0, but isn't necessarily) is /dev/sda, the next in
> sequence is /dev/sdb...
> With more than one SCSI bus the lettering goes through all the drives
> on the first bus before it starts on the second, etc.

Or "smartctl -a /dev/sdf" (assuming the drive will still respond to SCSI
requests rather than being completely dead) will tell you the serial
number, which should hopefully be written on the drive as well.


Nine times out of ten the statisticians are wrong.
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