Re: Determining which spindle is out of order

[Roman Mamedov <roman@rm.pp.ru>]

[-- Attachment #1: Type: text/plain, Size: 1178 bytes --]

On Wed, 3 Nov 2010 11:17:24 -0400
"Graham Mitchell" <gmitch@woodlea.com> wrote:

> > 
> > That's totally stupid <snip>
> > 
> > --
> > With respect,
> > Roman
> 
> Err....

Yeah, sorry about that -- and to make my reply a bit less useless, I should
elaborate that my suggestion is to not base anything on the sdX or their order
at all. For example even though I want to have a specific list of looked-at
devices in mdadm.conf, I point it directly to specific drives -- not
to /dev/sdX, but to udev symlinks in /dev/disk/by-id/ instead:

# 2TBs
DEVICE /dev/disk/by-id/ata-WDC_WD20EADS-00S2B0_WD-xxxxxxxxxxxx-part*
DEVICE /dev/disk/by-id/ata-WDC_WD20EADS-00S2B0_WD-xxxxxxxxxxxx-part*
DEVICE /dev/disk/by-id/ata-Hitachi_HDS722020ALA330_xxxxxxxxxxxxxx-part*
# 1.5 TBs
DEVICE /dev/disk/by-id/ata-WDC_WD15EADS-00S2B0_WD-xxxxxxxxxxxx-part*
# 1TBs
DEVICE /dev/disk/by-id/ata-Hitachi_HDT721010SLA360_xxxxxxxxxxxxxx-part*
DEVICE /dev/disk/by-id/ata-ST31000333AS_xxxxxxxx-part*

Listed like this it will also make mdadm not consider whole block devices for
addition into RAIDs, only the partitions (which is exactly what I want).

-- 
With respect,
Roman

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 198 bytes --]