Messages in this thread | | | Subject | Re: limits on raid | From | Nix <> | Date | Thu, 21 Jun 2007 21:08:54 +0100 |
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On 21 Jun 2007, Neil Brown stated: > I have that - apparently naive - idea that drives use strong checksum, > and will never return bad data, only good data or an error. If this > isn't right, then it would really help to understand what the cause of > other failures are before working out how to handle them....
Look at the section `Disks and errors' in Val Henson's excellent report on last year's filesystems workshop: <http://lwn.net/Articles/190223/>. Most of the error modes given there lead to valid checksums and wrong data...
(while you're there, read the first part too :) )
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