On Thu, Jun 12, 2008 at 1:03 AM, David Greaves <david@xxxxxxxxxxxx> wrote: > Neil Brown wrote: >> When writing to the array, the new parity block will sometimes be >> calculated assuming that it was previously correct. If all updates to >> a particular parity block are of this sort, then it will still be >> incorrect when you lose a drive, and data recovered based on that >> parity block will be incorrect. >> >> Until you lose a drive, it will have no visible effect. > > There is a slight chance that this happened to me recently - would a > echo check > /sys/block/mdX/md/sync_action > detect this? > and would > echo repair > /sys/block/mdX/md/sync_action > fix it? > 'Yes' on both questions. -- Dan -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
