On 03/21/2017 09:02 AM, David Brown wrote: > With RAID6 (or three-disk RAID1), you can tolerate /two/ URE's on > the same stripe. If you have failed a disk for replacement, you can > tolerate one URE. One nit to pick here: The UREs have to be in the same 4k block/sector, not just in the same stripe. The stripe cache and all parity calculations are done on strips of 4k blocks, not whole N*chunk stripes. That makes the odds even larger. Phil -- 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
