Bruce Allen <[EMAIL PROTECTED]> writes: > When I buy RAID controllers, I put this requirement directly in my bid > specifications. I say something like the following: > > ------------------------------------------------------------------ > > 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. > > In addition, the RAID controller will perform a continous or regular > (at least daily) background scan of all disk sectors to identify and > repair any unreadable sectors as described above. > > ------------------------------------------------------------------
I think you should add a parity verification to this - not just a sector scan. -- Leif Nixon - Systems expert ------------------------------------------------------------ National Supercomputer Centre - Linkoping University ------------------------------------------------------------ _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
