Novell LINUX ENTERPRISE SERVER 10 - STORAGE ADMINISTRATION GUIDE FOR EVMS Administration Manual page 70

Number
0
1
2
3
4
Example 2: Spare Disk Replaces the Failed Disk
In the following mdadm report, only 4 of the 5 disks are active and in good condition (Active
Devices : 4, Working Devices : 5). The failed disk was automatically detected and
removed from the RAID (Failed Devices: 0). The spare was activated as the replacement
disk, and has assumed the diskname of the failed disk (/dev/sdh1). The faulty object (the failed
disk that was removed from the RAID) is not identified in the report. The RAID is running in
degraded mode (State : clean, degraded, recovering). The data is being rebuilt
(spare rebuilding /dev/sdh1), and the process is 3% complete (Rebuild Status :
3% complete).
mdadm -D /dev/md0
Preferred Minor : 0
70 SLES 10 Storage Administration Guide for EVMS
Version : 00.90.03
Creation Time : Sun Apr 16 11:37:05 2006
Raid Level : raid5
Array Size : 35535360 (33.89 GiB 36.39 GB)
Device Size : 8883840 (8.47 GiB 9.10 GB)
Raid Devices : 5
Total Devices : 4
Preferred Minor : 0
Persistence : Superblock is persistent
Update Time : Mon Apr 17 05:50:44 2006
State : clean, degraded
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 128K
UUID : 2e686e87:1eb36d02:d3914df8:db197afe
Events : 0.189
Major Minor
8 97
0
8 129
8 145
8 161
/dev/md0:
Version : 00.90.03
Creation Time : Sun Apr 16 11:37:05 2006
Raid Level : raid5
Array Size : 35535360 (33.89 GiB 36.39 GB)
Device Size : 8883840 (8.47 GiB 9.10 GB)
Raid Devices : 5
Total Devices : 5
RaidDevice State
0 active sync
0 1 removed
2 active sync
3
4
/dev/sdg1
/dev/sdi1
active sync /dev/sdj1
active sync /dev/sdk1