Re: SCSI vs SATA
От | Alvaro Herrera |
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Тема | Re: SCSI vs SATA |
Дата | |
Msg-id | 20070404131920.GA8549@alvh.no-ip.org обсуждение исходный текст |
Ответ на | Re: SCSI vs SATA (Andreas Kostyrka <andreas@kostyrka.org>) |
Ответы |
Re: SCSI vs SATA
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Список | pgsql-performance |
Andreas Kostyrka escribió: > * Peter Kovacs <maxottovonstirlitz@gmail.com> [070404 14:40]: > > This may be a silly question but: will not 3 times as many disk drives > > mean 3 times higher probability for disk failure? Also rumor has it > > that SATA drives are more prone to fail than SCSI drivers. More > > failures will result, in turn, in more administration costs. > Actually, the newest research papers show that all discs (be it > desktops, or highend SCSI) have basically the same failure statistics. > > But yes, having 3 times the discs will increase the fault probability. ... of individual disks, which is quite different from failure of a disk array (in case there is one). -- Alvaro Herrera http://www.CommandPrompt.com/ The PostgreSQL Company - Command Prompt, Inc.
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