On Sunday August 6, 76306.1226@xxxxxxxxxxxxxx wrote: > Allow user to force raid1 to read all data from a given disk. > This lets users do integrity checking by comparing results > from reading different disks. If at any time the system finds > it cannot read from the given disk it resets the disk number > to -1, the default, which means to balance reads. Could say a little bit more about why you want this? You could get nearly the same situation be setting the other drives to write-mostly. And the more thorough integrity check is available via echo check > /sys/block/mdX/md/sync_action 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