[CentOS] How to map ata#.# numbers to /dev/sd numbers?

Les Mikesell lesmikesell at gmail.com
Thu Jan 28 22:17:36 UTC 2010


On 1/28/2010 4:05 PM, Stephen Harris wrote:
>
> As can be seen, different parts of detection appear to be interleaved
> (floppy detection message, sdb detection message - disk in a USB disk
> enclosure!) so I can't seem to rely on ordering of messages in dmesg to
> accurately determine which device has been assigned what ID.
>
> dmesg really gets messy when you have lots of disks!

Not to mention what happens if you hot-swap them and re-connect in a 
different order.  I've sometimes made raid-1 devices on the disks even 
if I don't intend to add the partner just so auto-detect will always 
connect them up to the right place even if some are disconnected or moved.

-- 
   Les Mikesell
    lesmikesell at gmail.com


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