On Feb 3, 2016, at 3:23 PM, Alfred von Campe <alfred at von-campe.com> wrote: > > On Feb 3, 2016, at 17:10, Warren Young wrote: > >> smartctl can see through several different types of RAID controller to the underlying physical disks via its -d option. > > This is what I have: > > # smartctl --all /dev/sda > smartctl 5.43 2012-06-30 r3573 [i686-linux-2.6.32-573.12.1.el6.i686] (local build) > Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net > > Vendor: IBM > Product: ServeRAID M5110e A bit of Googling says that’s an LSI 2208 based card. So, try smartctl -a -d megaraid,0 If that works, you should be able to walk through each disk by incrementing that trailing number. Then, you can add -t flags to do active tests.