Date: Sun, 14 Apr 2002 21:29:15 -0500 (CDT) From: Chris Dillon <cdillon@wolves.k12.mo.us> To: David Drum <david@mu.org> Cc: FreeBSD DB List <freebsd-database@FreeBSD.ORG> Subject: Re: Raid configuration Message-ID: <20020414212607.X83685-100000@mail.wolves.k12.mo.us> In-Reply-To: <20020414191814.GC40226@elvis.mu.org>
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On Sun, 14 Apr 2002, David Drum wrote: > > And when you only have a four-drive configuration, it makes no > > difference which one you use since the chances of a total failure > > is exactly the same either way. Any more drives than that and you > > definately want RAID10. :-) > > The chances of total failure may be the same, but the effort > required to rebuild the RAID is not. If you have 4 9GB disks in a > RAID 0+1 and one goes bad, you have to mirror 18GB once the drive is > replaced. If you have a RAID 1+0, you only have one drive to > mirror, and not a stripe. Ah, yes, I hadn't thought of what it would take to rebuild one. In that case, RAID 0+1 looks like the loser in all situations. -- Chris Dillon - cdillon@wolves.k12.mo.us - cdillon@inter-linc.net FreeBSD: The fastest and most stable server OS on the planet - Available for IA32 (Intel x86) and Alpha architectures - IA64, PowerPC, UltraSPARC, and ARM architectures under development - http://www.freebsd.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-database" in the body of the message
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