Time to format and copy data from backup.
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Hmm, some directories on that disk got corrupted - so much for "rebuild" RAID6.
Time to format and copy data from backup.
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There is no such thing as 100% reliability.Originally posted by fullyautomatix View Post
A proper RAID adapter will be doing patrol reads in order to catch bit rot, which means that it will spot errors that might otherwise go unnoticed (kind of the point really). When you have a unrecoverable read error rate of 1 in every 10^15 bits read then on an array using 6 x 2TB disks you would expect to see an unrecoverable read error every 10th time through or so, on average. Obviously you need to factor in reads from actual workload as well. So the chances of two errors on two separate disks aren't as slim as you might imagine.
Also, drives fail more than the MTBF numbers suggest and are correlated so after a single failure, another is actually more likely.
http://labs.google.com/papers/disk_failures.pdf
http://www.usenix.org/events/fast07/.../schroeder.pdfLeave a comment:
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From an earlier thread of mine;Originally posted by AtW View Post
# uptime
03:27PM up 1306 days, 2:12, 4 users, load average: 0.22, 0.33, 0.35
That's raid5, three node HACMP cluster.
This one's Linux isn't it? Screen shot looks Linuxy....Last edited by stek; 24 March 2011, 18:23. Reason: OSX 10.7 Dev Preview grammar/spell checker quite annoying...Leave a comment:
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