Messages in this thread | | | Date | Sun, 11 Sep 2005 19:29:13 +1000 | From | Eyal Lebedinsky <> | Subject | Re: read-from-all-disks support for RAID1? |
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Lennert Buytenhek wrote: > (please CC on replies) > > Hi! > > I recently had a case where one disk in a two-disk RAID1 array went > subtly bad, effectively refusing to write to certain sectors without > reporting an error. Basically, parts of the disk went undetectably > read-only, causing file system corruption that wouldn't go away after > fsck, and all kinds of other fun. > > Would it be hard/wise to add an option for RAID1 mode to read from all > devices on a read, and report an error to syslog or simply return an > I/O error if there is a mismatch? (Or use majority voting and tell > people to use 3-disk RAID1 arrays from now on ;-) > > > thanks, > Lennert
Would a two-disk raid-5 not do just what you want?
-- Eyal Lebedinsky (eyal@eyal.emu.id.au) <http://samba.org/eyal/> attach .zip as .dat - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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