During a READ operation, if the RAID controller finds an unreadable (uncorrectable) disk sector, then it will immediately reconstruct the missing data for that sector using redundant data from the rest of the array, and WRITE that data to the unreadable (uncorrectable) sector to force sector reallocation if needed by the disk.
I don't believe MD does online scrubbing. but you _can_ trigger it to do a check and/or scrub cycle (of the whole array, I think).
features. The absence of these features is the main reason that I don't think Linux software RAID is very good.
as always, the main advantage to open-source, software implementations is malleability. MD improves fast.
quite a while ago and use it heavily. Presumably the maintainers (Neil Brown? or is he just the mdadm maintainer) are aware of this lack/criticism?
Niel is very responsive and responsible.
As presented, it certainly seems like features that ought to be added. It would be interesting to cc LKML for comment.
[EMAIL PROTECTED] is the real nexus of md stuff. feel free to redirect followups there...
regards, mark hahn. _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
