From mboxrd@z Thu Jan 1 00:00:00 1970 From: erik quanstrom Date: Thu, 23 Jun 2011 12:37:49 -0400 To: 9fans@9fans.net Message-ID: <9e287164146271782e2b4d83398bb993@ladd.quanstro.net> In-Reply-To: References: <4E01F311.3060305@0x6a.com> <20110623104644.5cd888d7@wks-ddc.exosec.local> <4E0352E9.9050600@0x6a.com> <201106231725.10215.dexen.devries@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Survey: Current Fossil+venti Filesystem Topicbox-Message-UUID: f4f8720c-ead6-11e9-9d60-3106f5b1d025 > The main point I took from the talk they gave was that failure was > most strongly related to the number of writes in FLASH. If your > striping strategy is to duplicate writes to each drive, you faced the > happy prospect of doing a write and having both drives fail at the > same time. Hard drives have a different way of failing. We've seen > weirdness like this here, with drives in a bunch of nodes that all > seem to fail simultaneously, well within rated lifetime. Not cheap > drives either. Of course that was a little while ago and things seem > to have gotten better, but it's worth a warning. that's very interesting. i haven't seen that at all. the drives that i've seen fail in bunches have been regular old hard drives. - erik