On Fri, 2008-04-04 at 00:21 -0400, Toby Thain wrote: > On 3-Apr-08, at 8:14 PM, Zan Lynx wrote: > > A RAID media verify or a badblocks -n run can usually fix these. > > Only if your RAID uses CRCs (most don't). > > ZFS is the real answer to undetected corruption. If one hard disk returns a CRC read error for a block but the other RAID-1 mirror disk or the parity disk(s) return good blocks, the array controller should know which data is good and which is bad in order to rewrite a good copy. -- Zan Lynx <zlynx@xxxxxxx>
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