Date: Sat, 20 Jul 2013 20:12:14 +0100 From: Steve O'Hara-Smith <steve@sohara.org> To: freebsd-questions@freebsd.org Cc: frank2@fjl.co.uk Subject: Re: to gmirror or to ZFS Message-ID: <20130720201214.90206565e00675611996176d@sohara.org> In-Reply-To: <51EAC56C.4030801@fjl.co.uk> References: <4DFBC539-3CCC-4B9B-AB62-7BB846F18530@gmail.com> <alpine.BSF.2.00.1307152211180.74094@wonkity.com> <976836C5-F790-4D55-A80C-5944E8BC2575@gmail.com> <51E51558.50302@ShaneWare.Biz> <51E52190.7020008@fjl.co.uk> <CAOaKuAVULVuZxtExp=mNi-J7kMNbsxbLJVsv8nKTA0-Ru6M3%2Bw@mail.gmail.com> <6CE5718E-2646-4D8C-AF98-37384B8851C5@mac.com> <CAOaKuAU8nhaoq%2B6hCVkB%2Bb-ppiBvYPKANdWJRnYcmKaPdecwZA@mail.gmail.com> <DCC017BE-A293-4C1B-8B6F-D9AF6F50125B@mac.com> <51EAC56C.4030801@fjl.co.uk>
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On Sat, 20 Jul 2013 18:14:20 +0100 Frank Leonhardt <frank2@fjl.co.uk> wrote: > It's worth noting, as a warning for anyone who hasn't been there, that > the number of times a second drive in a RAID system fails during a > rebuild is higher than would be expected. During a rebuild the remaining > drives get thrashed, hot, and if they're on the edge, that's when > they're going to go. And at the most inconvenient time. Okay - obvious > when you think about it, but this tends to be too late. Having the cabinet stuffed full of nominally identical drives bought at the same time from the same supplier tends to add to the probability that more than one drive is on the edge when one goes. It's a pity there are now only two manufacturers of spinning rust. -- Steve O'Hara-Smith <steve@sohara.org>
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