Messages in this thread | | | Subject | Re: limits on raid | From | Andi Kleen <> | Date | 17 Jun 2007 15:00:24 +0200 |
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Neil Brown <neilb@suse.de> writes: > > Having the filesystem duplicate data, store checksums, and be able to > find a different copy if the first one it chose was bad is very > sensible and cannot be done by just putting the filesystem on RAID.
Apropos checksums: since RAID5 copies/xors anyways it would be nice to combine that with the file system. During the xor a simple checksum could be computed in parallel and stored in the file system.
And the copy/checksum passes will hopefully at some point be combined.
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