From owner-freebsd-stable  Tue Apr  2 23:18:39 2002
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From: Søren Schmidt <sos@freebsd.dk>
Message-Id: <200204030718.g337IOg84838@freebsd.dk>
Subject: Re: cvs commit: src/sbin/atacontrol atacontrol.8 atacontrol.c
In-Reply-To: <5.1.0.14.0.20020402152038.075b6650@marble.sentex.ca>
To: Mike Tancsa <mike@sentex.net>
Date: Wed, 3 Apr 2002 09:18:24 +0200 (CEST)
Cc: stable@FreeBSD.ORG
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It seems Mike Tancsa wrote:
> At 08:58 AM 4/2/02 +0200, Søren Schmidt wrote:
> 
> >If a disk in a RAID1 goes bad, the driver will continue to use the
> >good half of the mirror, and log the fact that the mirror is now
> >in degraded mode. You can then use atacontrol to detach the disk,
> >add a new one, and use atacontrol to rebuild the array, all without
> >having to take down the machine. If the last good disk fail, the driver
> >will log that the array is broken, and return error on all accesses...
> >
> >And yes I'll add a get status/mode command :)
> 
> Awesome!  I just tried it on our test machine.
> 
> raidtest2# atacontrol status ar0
> ar0: ATA RAID1 subdisks: ad8 ad10 status: READY
> raidtest2#
> 
> Also, I updated a few other boxes that have
> 
> atapci0: <VIA 82C686 ATA100 controller> port 0xe000-0xe00f at device 7.1 on 
> pci0
> 
> and so far so good!
> 
> Also, what would you recommend for hot swapable trays ?

The promise superswap enclosures, they are a bit pricy, but I support
setting the LED color on the front for show the disk status, and you
get get the fan speed/disk temperature/disk voltages form the superswap
with atacontrol, very handy for servers :)...

-Søren

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