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Date:      Mon, 5 Jul 2004 00:10:56 +0200
From:      "Simon L. Nielsen" <simon@FreeBSD.org>
To:        Harald Schmalzbauer <h@schmalzbauer.de>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: atacontrol Raid, cannot re-add member to array
Message-ID:  <20040704221056.GE862@zaphod.nitro.dk>
In-Reply-To: <200407042333.33470@harryhomeworkstation>
References:  <DEC925D2FB9081448C3D6EC26E85868CD4D7AC@steinmail.swistgroup.com> <20040701083204.790719f2.steve@sohara.org> <200407042333.33470@harryhomeworkstation>

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On 2004.07.04 23:33:28 +0200, Harald Schmalzbauer wrote:

> I've never tried ataraid with "non-raid" controllers but I doubt that=20
> detach/attach would work.

It does work, you "just" have to hotswap the disk [1].  I tried it
some time ago, and I successfully did a rebuild, though I did kill one
of the disks shortly after since I tried to plug in the power cable
the wrong way during another test (yes that's stupid, I know :-) ).

> I asked S=F8ren about the missing addspare in -stable=20
> but never got any answer.

AFAIK S=F8ren does not update the ata driver in stable since it's
somewhat different than the one in -CURRENT, and he does not have the
time to maintain both codebases.

AFAIR somebody made a patch for addspare functionality on -STABLE not
to long ago.  It should be in GNATS somewhere.

> I just had extreme problems with ataraid on -current and am awaiting some=
=20
> response about these issues, I just can hope that some time ataraid will =
be=20
> lifted to what the man page promises.

Well, I'm using it just fine on my main mailserver (running 5.2.1) but
that's a RAID1 with standard a ATA controller.

[1] WARNING: If you try to hotswap a disk without the proper hardware
you might kill your disk (and possibly other parts of the computer)...

--=20
Simon L. Nielsen
FreeBSD Documentation Team

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