> According to the above you removed device 3 not device 7....device 3 > is missing...device 7 is still there and is a spare. Thats right. > Put what you though was 7 back This device no longer exists. > ...note that properly determining which > device is which is pretty difficult unless you have a commercial grade > wired enclosure from a tier 1 vendor that is actually labeled and > wired correctly (don't always count on that). I thought, every device has its fixed device number in the raid: mdadm -E /dev/sd[a-f]1 | grep Role Device Role : Active device 1 Device Role : Active device 5 Device Role : spare Device Role : Active device 0 Device Role : Active device 4 Device Role : Active device 2 -- 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