On Wednesday September 16, linuxraid.study@xxxxxxxxx wrote: > Hello: > > I understand that parity calculations are not done as part of Raid5 > read operation in normal running conditions. Correct. > > However, it would be done during disk failure or when a sector is bad. Also correct. > Is there a way (any stats) available to see if parity cal are done > when sector is bad (since this is not as obvious as a disk fail...) > Maybe you want /sys/block/mdX/md/dev-YYY/errors which counts the number of sectors for which md found a read error and had to generate correct data using parity, and then wrote that correct data back. NeilBrown -- 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
