From: Neil Brown <neilb@suse.de>
To: tomka@avaxio.net
Cc: "Linux, Raid lista" <linux-raid@vger.kernel.org>
Subject: Re: spare group
Date: Tue, 12 Jun 2007 09:47:56 +1000 [thread overview]
Message-ID: <18029.57132.285522.284156@notabene.brown> (raw)
In-Reply-To: message from Tomka Gergely on Monday June 11
On Monday June 11, tomka@avaxio.net wrote:
>
> # cat /etc/mdadm/mdadm.conf
> DEVICE /dev/sd[a-g]1
>
> HOMEHOST ursula
>
> ARRAY /dev/md1 level=raid5 devices=/dev/sd[defg]1 num-devices=3
> spares=1 spare-group=ubul name=ursula:T2
> UUID=fb8ece28:9a6a31f8:700f37f6:7ee91bcf
> ARRAY /dev/md0 level=raid5 devices=/dev/sd[abc]1 num-devices=3
> spare-group=ubul name=ursula:T1 UUID=3e420024:281f9bb1:fd9ef39b:c18153b1
You don't want the "devices=" entries in there. If you leave them
there, and sdg1 does get moved to md0, then on the next restart, md0
won't get assembled properly.
>
> According to the source:
>
> * If an array has active < raid && spare == 0 && spare_group !=NULL
> * Look for another array with spare > 0 and active == raid and same
> spare_group
> * if found, choose a device and hotremove/hotadd
>
> This is not happening. What is my mistake?
Is "mdadm --monitor" running? That is required to perform
spare-migration.
NeilBrown
next prev parent reply other threads:[~2007-06-11 23:47 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-11 13:45 spare group Tomka Gergely
2007-06-11 23:47 ` Neil Brown [this message]
2007-06-12 6:34 ` Tomka Gergely
2007-06-12 6:59 ` Neil Brown
2007-06-12 7:57 ` Tomka Gergely
2007-06-12 9:54 ` Neil Brown
2007-06-13 7:25 ` Tomka Gergely
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