Hi Greg,
On 11 April 2014 21:52, Greg Zartman <[email protected]> wrote:
> These drives are sitting in a Supermicro 2U 12-bay chassis with a
> BPN-SAS-825TQ SAS/SATA Backplate
> My SAS/SATA controllers are 2 x IBM SERVERAID M1015 crossflashed to IT mode
> (i.e., pass-through).
Is this a rebadged LSI card that uses the "mpt_sas" driver? If so,
you can likely find some details about the port numbers by running:
mdb -k -e "::mptsas -t"
Hopefully you'll see a bunch of records for the disks attached to each
controller, like this:
devhdl 11, sasaddress 5000cca01c46f829, phymask f,devinfo 401
throttle 20, dr_flag 0, m_t_ncmds 0, enclosure 2, slot_num 7
The interesting bit here is the "enclosure" and "slot_num" for each
disk, which ought to be unique per controller and refer (basically) to
the port this disk is attached to on the card.
> Question: What is the best way for me to know where a failed drive is
> located in the chassis? Perhaps the backplate/raid card are smart enough to
> light up the red error LED when a drive fails, but I'm not certain of this.
Assuming you can get sane mapping data out of the driver, it's
possible we can create a static XML map for your particular hardware
that you can add to your platform image, and the existing fault light
stuff may just work.
Cheers.
--
Joshua M. Clulow
UNIX Admin/Developer
http://blog.sysmgr.org
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