From: Neil Brown <neilb@suse.de>
To: Maurice Hilarius <maurice@harddata.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: Verifying spare drive, best practices
Date: Tue, 25 Mar 2008 15:48:33 +1100 [thread overview]
Message-ID: <18408.33825.920147.425644@notabene.brown> (raw)
In-Reply-To: message from Maurice Hilarius on Thursday March 20
On Thursday March 20, maurice@harddata.com wrote:
> Given this situation:
> 7 disks in total
> RAID5 of 6 disks, and a hot spare.
>
> mdadm show the 6 disks, but not the spare.
>
> As a maintenance question, where one wants to periodically ensure that
> the hot spare is both available and good.
> How should one best :
> 1) Verify the hot spare is still available.
- On the relevant line in mdadm.conf, put "spares=1"
- have a daily cron job that runs
mdadm --montor --scan --oneshot
It will report every day with a "SparesMissing" event if the right
number of spares is not present.
> 2) Verify that the hot spare is healthy?
Others have answered this.
NeilBrown
next prev parent reply other threads:[~2008-03-25 4:48 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-21 4:35 Verifying spare drive, best practices Maurice Hilarius
2008-03-21 15:13 ` Carlos Carvalho
2008-03-22 17:25 ` Bill Davidsen
2008-03-25 4:48 ` Neil Brown [this message]
2008-03-25 13:29 ` Peter Evertz
2008-03-25 16:19 ` Bill Davidsen
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