> You want the individual drive write caches disabled. Leaving their read caches enabled is fine. > >The reason is that a power drop, kernel panic, or hardware lockup >(thermal etc) clears the drive write caches before the blocks are >written to the platters. It is suspected that many/most of these free >space btree corruptions, such as yours here, are caused by data in >caches not being flushed to the platters. SAN/RAID controllers with >BBWC usually guarantee data in the write cache gets properly flushed to >the platters when the system comes back up. Makes total sense. Thanks so much. -- View this message in context: http://old.nabble.com/mount%3A-Structure-needs-cleaning-tp33393100p33401743.html Sent from the Xfs - General mailing list archive at Nabble.com. _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs