From mboxrd@z Thu Jan  1 00:00:00 1970
From: Roman Mamedov <roman@rm.pp.ru>
Subject: Re: Determining which spindle is out of order
Date: Wed, 3 Nov 2010 21:05:16 +0500
Message-ID: <20101103210516.66c5deb8@natsu>
References: <loom.20101103T115828-494@post.gmane.org>
	<20101103193841.57e5cb41@natsu>
	<001301cb7b6a$38d7fce0$aa87f6a0$@woodlea.com>
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To: Graham Mitchell <gmitch@woodlea.com>
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On Wed, 3 Nov 2010 11:17:24 -0400
"Graham Mitchell" <gmitch@woodlea.com> wrote:

> >=20
> > That's totally stupid <snip>
> >=20
> > --
> > With respect,
> > Roman
>=20
> 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 or=
der
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 f=
or
addition into RAIDs, only the partitions (which is exactly what I want).

--=20
With respect,
Roman

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