Re: [smartmontools-support] Unknown_Attribute

[Bruce A. <ba...@gr...>]

Hi Kai,

> So I set up smartd (lucky me, it looks like) yesterday, and am getting 
> some Unknown_Attribute lines. Your FAQ suggests I email you about it. 
> I'll be taking care of the failed self-check disk. I'm just curious 
> about the unknown attribute changing from 75 to 76 and back. What would 
> this value be?
>
> These disks are attached to a 3ware 9650SE-12ML (12 port) card. I have
> the latest drivers for the card as of about 3 weeks ago.


> [3ware_disk_01], FAILED SMART self-check. BACK UP DATA NOW!

This is a geniune warning and should not be ignored.  I suggest that you 
run:

      smartctl -a /dev/twa0 -d 3ware,1

to see what Attribute is failing.  The other output is not very 
significant or worrying.

> I am also curious if anybody knows how to clearly define which 3ware 
> disks are which /dev/sd* device? I have 12 identical drives set up in 6 
> identical raid-1 arrays for this particular box, and I'd like to verify 
> which disks belong to which linux device. I am mostly interested in 
> knowing for sure which one is /dev/sda, since that drive has my OS on it 
> (for now).

Adam, could you respond to that?

Cheers,
 	Bruce