----- Message from matthew.garman@gmail.com ---------
     Date: Wed, 27 Jan 2010 08:29:50 -0600
     From: Matt Garman [off-list ref]
  Subject: Re: How can I tell what drive is sdb?
       To: Steven Haigh [off-list ref]
       Cc: linux-raid@vger.kernel.org

On Wed, Jan 27, 2010 at 8:21 AM, Steven Haigh [off-list ref] wrote:

quoted

On 28/01/2010, at 1:18 AM, Jan Ceuleers wrote:

quoted

Matt Garman wrote:

quoted

quoted

Is there a way to identify what drive is what?

Another tedious approach: use smartctl or hdparm as suggested above to
get an initial mapping of /dev/sdX to serial number.  Then, disconnect
the SATA cable of all but one drive, and reboot.  Now look at what
/dev/sda's serial number is, and compare that to the initial mapping.
Eventually /dev/sda will correspond to /dev/sdb when all drives are
connected.

If the controller supports hotswap, you could do something similar
without so many reboots.

This scheme makes the assumption that it's easier to pull SATA cables
than just look at the drive's serial numbers.

blkid could also be used to identify the drives.
It should work with all types of drives SCSI/SATA/PATA/USB/...


----- End message from matthew.garman@gmail.com -----



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