Public bug reported:
Degradation in 3.2 to 3.3.4, last working 3.2.6.
mdadm --detail --test returns 0 on for degraded array, when only the
second of two disks is removed, works as expected when the first disk
removed.
Expected:
--test -t : exit status 0 if ok, 1 if degrade, 2 if dead, 4 if
missing
Expected:
mdadm --detail /dev/md2 --test ; echo $?
/dev/md2:
Version : 1.2
Creation Time : Thu Dec 10 11:50:20 2015
Raid Level : raid1
Array Size : 780226240 (744.08 GiB 798.95 GB)
Used Dev Size : 780226240 (744.08 GiB 798.95 GB)
Raid Devices : 2
Total Devices : 1
Persistence : Superblock is persistent
Intent Bitmap : Internal
Update Time : Thu Dec 10 11:50:22 2015
State : active, degraded
Active Devices : 1
Working Devices : 1
Failed Devices : 0
Spare Devices : 0
Name : A1
UUID : 333592b4:40d92ae2:9cf82398:b92d466e
Events : 24
Number Major Minor RaidDevice State
0 0 0 0 removed
1 8 34 1 active sync /dev/sdc2
1
^^ not a bug
Bug:
mdadm --detail /dev/md1 --test ; echo $?
/dev/md1:
Version : 1.2
Creation Time : Thu Dec 10 11:39:41 2015
Raid Level : raid1
Array Size : 780226240 (744.08 GiB 798.95 GB)
Used Dev Size : 780226240 (744.08 GiB 798.95 GB)
Raid Devices : 2
Total Devices : 1
Persistence : Superblock is persistent
Intent Bitmap : Internal
Update Time : Thu Dec 10 11:42:35 2015
State : active, degraded
Active Devices : 1
Working Devices : 1
Failed Devices : 0
Spare Devices : 0
Name : A1
UUID : 6a29c716:b804f9f3:3519867f:32f98380
Events : 32
Number Major Minor RaidDevice State
0 8 18 0 active sync /dev/sdb2
2 0 0 2 removed
0
^^^ BUG
** Affects: mdadm (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1524697
Title:
wrong --detail --test
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