Date: Fri, 18 Dec 1998 13:41:59 +1030 From: Greg Lehey <grog@lemis.com> To: Dan Swartzendruber <dswartz@druber.com> Cc: Matthew Patton <patton@sysnet.net>, freebsd-isp@FreeBSD.ORG Subject: Re: RAID solutions? Message-ID: <19981218134159.S486@freebie.lemis.com> In-Reply-To: <3.0.5.32.19981217220842.009d5cf0@mail.kersur.net>; from Dan Swartzendruber on Thu, Dec 17, 1998 at 10:08:42PM -0500 References: <3.0.5.32.19981217220152.009c6100@mail.kersur.net> <l03110705b29e428c72d1@[192.168.1.10]> <3.0.5.32.19981215231329.00966ae0@mail.kersur.net> <l03110705b29e428c72d1@[192.168.1.10]> <19981218131434.M486@freebie.lemis.com> <3.0.5.32.19981217220152.009c6100@mail.kersur.net> <19981218133502.Q486@freebie.lemis.com> <3.0.5.32.19981217220842.009d5cf0@mail.kersur.net>
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On Thursday, 17 December 1998 at 22:08:42 -0500, Dan Swartzendruber wrote: > At 01:35 PM 12/18/98 +1030, Greg Lehey wrote: >> On Thursday, 17 December 1998 at 22:01:52 -0500, Dan Swartzendruber wrote: >>> >>> Greg, are there any performance ramifications with RAID5? When not in >>> degraded mode, of course... >> >> Yes, big ones. Every write in normal mode requires at least one >> additional I/O to the parity block. > > That's what I wondered about. Probably not worth it for a news spool... It depends. Matthew was recommending RAID-1 (mirroring). That requires significantly more disk. If you are concerned about the integrity of your news spool, you have the choice between RAID-5 and RAID-1. Greg -- See complete headers for address, home page and phone numbers finger grog@lemis.com for PGP public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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