On Sat, 27 Feb 2016, Andrew McGlashan wrote:
> Yes, but can you define RAID devices by UUID or Label?
mdadm RAID devices have their own UUID as well as the UUID of the array that
they are part of.
> Those drives are not showing via UUID or label here...
% sudo mdadm --examine /dev/sda1
/dev/sda1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 3e7a6596:51993940:33a49f10:681fdf84
Name : gorgon:0
Creation Time : Fri Aug 12 15:38:29 2011
Raid Level : raid1
Raid Devices : 3
Avail Dev Size : 974824 (476.07 MiB 499.11 MB)
Array Size : 487412 (476.07 MiB 499.11 MB)
Data Offset : 24 sectors
Super Offset : 8 sectors
State : clean
Device UUID : df717760:f75510d7:a397cbe0:8f516735
Update Time : Sun Feb 7 00:57:11 2016
Checksum : 9f11296b - correct
Events : 353
Device Role : Active device 0
Array State : AAA ('A' == active, '.' == missing, 'R' == replacing)
For example.
mdadm is fully capable of scanning available devices to find the ones
with the right Array UUID and Device UUIDs.
--
Don Armstrong http://www.donarmstrong.com
Junkies were all knitted together in a loose global macrame, the
intercontinental freemasonry of narcotics.
-- Bruce Sterling, _Holy Fire_ p257
