From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <4033F1FE.8090209@cantrell.org.uk> From: David Cantrell User-Agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.6b) Gecko/20031213 Thunderbird/0.5a MIME-Version: 1.0 To: 9fans@cse.psu.edu Subject: Re: [9fans] Interesting in trying out Plan 9 References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Date: Wed, 18 Feb 2004 23:15:10 +0000 Topicbox-Message-UUID: eba8988a-eacc-11e9-9e20-41e7f4b1d025 matt@proweb.co.uk wrote: > 5 a day seems a little more than expected but it depends on usage > 1024 nodes x 5 drives = 5120 drives > mtbf of 5 years > 5120 drives fail every 1825 days > 5120 / 1825 = 2.8 per day If you're monitoring your disks' health (and you should be!) then you get warnings well before the disk fails. If my income depended on my machines' reliability, I'd be replacing disks at the slightest hint that they might possibly be considering failure. -- David Cantrell | Reality Engineer, Ministry of Information "Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin slitting throats." -- H. L. Mencken