Date: Mon, 12 Feb 2007 16:07:03 +1030 From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: "Patrick M. Hausen" <hausen@punkt.de> Cc: Artem Kuchin <matrix@itlegion.ru>, freebsd-stable@freebsd.org Subject: Re: What is a good choice of sata-ii raid controller for freebsd? Message-ID: <200702121607.05427.doconnor@gsoft.com.au> In-Reply-To: <20070211235138.GA53649@hugo10.ka.punkt.de> References: <00ad01c74b65$79db1710$0c00a8c0@Artem> <200702120940.42167.doconnor@gsoft.com.au> <20070211235138.GA53649@hugo10.ka.punkt.de>
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--nextPart9523994.oP3DLl7YDS Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Monday 12 February 2007 10:21, Patrick M. Hausen wrote: > > Software RAID won't help you if your primary disk gets an error in, say, > > the second stage loader. > > I don't really buy this "booting" arguement. What's the failure scenario > here? If the system is up and running, it will just keep humming along. > The SCSI or ATA layer is supposed to detach a failed drive and > geom will disable one part of the mirror. > > You can react appropriately when you get the failure message. Sure, if you're present. I regularly ship systems overseas where the power fails frequently. The=20 inability to boot because one disk got hosed is Bad News (tm). It depends on your exact situation, I was just pointing out that SW RAID=20 doesn't cover all the bases HW RAID does. Murphy dictates that the moment one of your disks down your system will=20 glitch/panic/etc and reboot and then you'll be stuffed :) =2D-=20 Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C --nextPart9523994.oP3DLl7YDS Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (FreeBSD) iD8DBQBFz/0B5ZPcIHs/zowRAl+pAJ4sDdKE38bW40SSEkT2pXnyhOq3EACaAs/N xgZPPwQnKxgr9cE9yosOxlg= =ipCK -----END PGP SIGNATURE----- --nextPart9523994.oP3DLl7YDS--
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