Date: Sun, 12 Feb 2006 12:25:13 +0000 From: David Taylor <davidt@yadt.co.uk> To: soralx@cydem.org Cc: freebsd-hackers@freebsd.org Subject: Re: RAID5 on athlon64 machines Message-ID: <20060212122513.GA58153@outcold.yadt.co.uk> In-Reply-To: <200602120127.03988.soralx@cydem.org> References: <200602112334.k1BNYf83084494@gate.bitblocks.com> <200602120127.03988.soralx@cydem.org>
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On Sun, 12 Feb 2006, soralx@cydem.org wrote: [missing attribution] > > > > You compute max data rates by considering the most optimistic > > scenario, which is large sequetial writes. For *this* > > situation write rate will be higher than a single disk's. > > How can the RAID5 write rate be higher for the whole array if not > only it needs to write the data to all if its drives, but also > compute and write a parity block? Easy, you can write simultaneously to more than one drive, assuming the drive was the bottleneck in the first place. -- David Taylor
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