Date: Sun, 16 Dec 2007 20:32:34 +1100 From: Darren Reed <darrenr@freebsd.org> To: Rainer Duffner <rainer@ultra-secure.de> Cc: freebsd-current@freebsd.org Subject: Re: ZFS melting under postgres... Message-ID: <4764F0B2.1090306@freebsd.org> In-Reply-To: <47628934.6000007@ultra-secure.de> References: <47606C09.2070209@isc.org> <47609F0A.7010805@clearchain.com> <47609FE3.8040606@barafranca.com> <4760B444.1080604@clearchain.com> <06CAC7FC-DB58-441D-A6E0-76D1D8133393@tamu.edu> <86ir31xwlu.fsf@ds4.des.no> <1197637700.1250.35.camel@herring.rabson.org> <86abodxvbd.fsf@ds4.des.no> <47628934.6000007@ultra-secure.de>
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Rainer Duffner wrote: > Dag-Erling Smørgrav wrote: >> Note that you can also get disk drives with a certain amount of NAND >> flash built-in, but FreeBSD doesn't support that yet. >> >> > > They are intended for use with Vista - and have recently been found to > be marginally more effective than a placebo (for Vista-performance). > The speed-gains are barely distinguishable from measurement-errors... > So, if the drives would help ZFS, it would be a big irony. > > There are companies that manufacture "pure" SSDs (www.superssd.com, > www.soliddata.com) with battery-backup. > Unfortunately, the price-tag of these systems is still beyond reach for > normal customers. But prices for computer things only go in one direction: down. It will be interesting when they're more affordable and available. Darren
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