Date: Thu, 3 Nov 2005 18:16:17 -0800 (PST) From: michael meltzer <michaelmeltzer@yahoo.com> To: francisco@natserv.net, Chuck Swiger <cswiger@mac.com> Cc: stable@freebsd.org Subject: Re: Disk 100% busy Message-ID: <20051104021617.73888.qmail@web30104.mail.mud.yahoo.com> In-Reply-To: <20051103143332.B60864@zoraida.natserv.net>
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--- Francisco Reyes <francisco@natserv.net> wrote: > On Thu, 3 Nov 2005, Chuck Swiger wrote: > > > If you're using maildir, that is one of the > situations which works pretty > > well with RAID-5, although RAID-10 is also > (always? :-) a good choice. > > How about for database? In particular postgresql. > How bad would RAID 5 be for it? > > I still have some, limited, hopes I can convince the > owner of the company > to go with RAID 10 with 10K rpm drives.. the most > likelyhood we will go > with RAID 5, 7200rpm drives for a database project > ahead. Alternatively I > will see how RAID 5 with 10K rpm SCSI drives > compares price wise, but I am > sure it will be substantially more. :-( > _______________________________________________ I would subject you checkout: Controller: http://www.3ware.com/products/serial_ata2-9000.asp 16 port muili-lane, with BU and 265meg, cheaper than most SCSI controller, faster, well supported and you need the spindles for high IO, about 700$ plus BU and memory(not sure they are in stock yet, only out a week+-) Disk: WD Raptor, 74 GB, 10000 RPM Hard Drive http://www.wdc.com/en/products/Products.asp?DriveID=65&Language=en 146$ vs 210$ for SCSI (newegg.com) Enclosure: enlight 316 with Multilane back plane, 650w triple reduncany PS and the two extra exhaust fans. http://www.enlightusa.com/product_details.asp?id=4 The Multilane will keep cables under control and the thermals look good. about $1400+- pick your MB and memory................... Happen to be specing out some new db servers this week -mjm __________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com
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