[CentOS] Identifying physical disks

Sat Apr 30 09:34:47 UTC 2011
Eero Volotinen <eero.volotinen at iki.fi>

2011/4/30 Jussi Hirvi <listmember at greenspot.fi>:
> I am sure this is really simple.
> I have a setup of 2 disks (sda, sdb) which are outwardly identical, and
> are mirrors of each other. Together they form 3 raid1 devices. Both
> disks can boot.
> Now sda has bad sectors, and I should replace it. But which one of the
> physical disks is sda??

take look at serial number using smartctl