MDADM Active, degraded

[djh82uk]

Hi All

I am running an ubuntu server for storage with a raid 5 array currently consisting of 7 drives.

I noticed today that there were some performance problems and so had a look at the array. mdadm reports the array as "active, degraded"

mdadm -D as below

Version : 00.90
Creation Time : Thu Aug 19 14:23:02 2010
Raid Level : raid5
Array Size : 8790822528 (8383.58 GiB 9001.80 GB)
Used Dev Size : 1465137088 (1397.26 GiB 1500.30 GB)
Raid Devices : 7
Total Devices : 7
Preferred Minor : 0
Persistence : Superblock is persistent

Update Time : Sun Jul 3 01:40:33 2011
State : clean, recovering
Active Devices : 7
Working Devices : 7
Failed Devices : 0
Spare Devices : 0

Layout : left-symmetric
Chunk Size : 64K

Rebuild Status : 2% complete

UUID : 7d949c68:77a72ebb:c05ac76e:5ea0fe71
Events : 0.54628

Number Major Minor RaidDevice State
0 8 1 0 active sync /dev/sda1
1 8 17 1 active sync /dev/sdb1
2 8 33 2 active sync /dev/sdc1
3 8 49 3 active sync /dev/sdd1
4 8 80 4 active sync /dev/sdf
5 8 64 5 active sync /dev/sde
6 8 96 6 active sync /dev/sdg

Basically im trying to figure out whats happened, to me it looks as though no drives have failed, is it still redundant, what could have caused this?

Thanks

DJH

[Lazydog]

Rebuild Status : 2% complete

Basically im trying to figure out whats happened, to me it looks as though no drives have failed, is it still redundant, what could have caused this?

Thanks

DJH

You are correct it looks like all drives are working. The bit quoted above tell me that it is rebuilding and isn't complete. So it either thinks that something failed or something did fail and then come back to life.

Run the following command on the raid

/sbin/mdadm --detail /dev/md#

and post the output.

[djh82uk]

Hiya

Where should that be run from?

Thanks

DJH

[djh82uk]

Ignore my last post, was being stupid.

Info as below

Version : 00.90
Creation Time : Thu Aug 19 14:23:02 2010
Raid Level : raid5
Array Size : 8790822528 (8383.58 GiB 9001.80 GB)
Used Dev Size : 1465137088 (1397.26 GiB 1500.30 GB)
Raid Devices : 7
Total Devices : 7
Preferred Minor : 0
Persistence : Superblock is persistent

Update Time : Sun Jul 3 16:22:27 2011
State : clean
Active Devices : 7
Working Devices : 7
Failed Devices : 0
Spare Devices : 0

Layout : left-symmetric
Chunk Size : 64K

UUID : 7d949c68:77a72ebb:c05ac76e:5ea0fe71
Events : 0.54632

Number Major Minor RaidDevice State
0 8 1 0 active sync /dev/sda1
1 8 17 1 active sync /dev/sdb1
2 8 33 2 active sync /dev/sdc1
3 8 49 3 active sync /dev/sdd1
4 8 80 4 active sync /dev/sdf
5 8 64 5 active sync /dev/sde
6 8 96 6 active sync /dev/sdg

As you can see it has finished now and seems to be ok, although am still seeing performance issues with the machine in general compared to last week.

Thanks

DJH

[Lazydog]

Not sure what they could be.