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Date: Tue, 3 Jan 2012 16:27:29 +0100
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From: Olivier Smedts <olivier@gid0.org>
To: Johan Hendriks <joh.hendriks@gmail.com>
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Subject: Re: ZFS v28 on -STABLE not using hot spare
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2012/1/3 Johan Hendriks <joh.hendriks@gmail.com>:
> ZFS on FreeBSD does not have 'HOT' spares.
> They are cold, and human intervention is needed to replace a disk in a po=
ol.
> There are some topics about it on the net.
>
> I opt for a warning, because a lot of users get a false security sence wh=
en
> using the spares.
> zpool should not accept the spare without a warning to the user that it i=
s a
> cold spare and not a hot one.
>
> it looks like there is some work planned for a zfs deamon that should
> overcome this problem on FreeBSD
>
> http://svnweb.freebsd.org/base?view=3Drevision&revision=3D222836
>
> On Solaris there is also a deamon running that does the actual replace.
>
> It should not be to hard to make a script that checks every minute or wha=
t
> time interval you want and check if a pool is degraded, then check if
> autoreplace is set for the pool, if so check if there is a spare, if so d=
o
> the actual replace.
> Unfortunally i can not code :(
> Maybe some one has a script lying around. ??

Or maybe some devd.conf lines to handle this automatically ?

Cheers

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