> [ ... ] Which tool settings? [ ... ] As to this, how are the 8KiB writes aligned? To 1KiB? 4KiB? 8KiB? To something else? Is there any other activity on the same physical disks given that the RAID members seem to be LVs? Also what's the size of those LV members of the MD set? It may be quite small... -- 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