Ciao a tutti.
Ho installato SME su un server con controller RAID Adaptec I2O con 4 dischi da 146SCSI in RAID 5. Da controller vedo correttamente il volume da 400GB e da sistema installato il device e' /dev/i20/hda
Purtroppo xo', mi segnala continuamente che il raid e' degradato su tutti e tre i device md ( md1, md2, md3 ).
Secondo me, xo', e' un problema software della gestione di MDADM....
Eccovi come appare configurato:
[root@mail etc]# more /etc/mdadm.conf
# mdadm.conf written out by anaconda
DEVICE partitions
ARRAY /dev/md1 level=raid1 num-devices=2 UUID=084e3408:cba1f287:eade4522:23417ef8
ARRAY /dev/md2 level=raid1 num-devices=2 UUID=18328bf8:a9650c1c:d628a8ca:55ed7c90
ARRAY /dev/md3 level=raid1 num-devices=2 UUID=33664e75:0af2b523:21022f35:0102a13e
[root@mail etc]# more /proc/mdstat
Personalities : [raid1]
md2 : active raid1 i2o/hda3[0]
2040128 blocks [2/1] [U_]
md3 : active raid1 i2o/hda2[0]
427312832 blocks [2/1] [U_]
md1 : active raid1 i2o/hda1[0]
104320 blocks [2/1] [U_]
unused devices: <none>
[root@mail etc]# mdadm --detail /dev/md1
/dev/md1:
Version : 00.90.01
Creation Time : Wed Mar 31 13:00:14 2010
Raid Level : raid1
Array Size : 104320 (101.89 MiB 106.82 MB)
Device Size : 104320 (101.89 MiB 106.82 MB)
Raid Devices : 2
Total Devices : 1
Preferred Minor : 1
Persistence : Superblock is persistent
Update Time : Thu Apr 1 11:27:32 2010
State : clean, degraded
Active Devices : 1
Working Devices : 1
Failed Devices : 0
Spare Devices : 0
UUID : 084e3408:cba1f287:eade4522:23417ef8
Events : 0.486
Number Major Minor RaidDevice State
0 80 1 0 active sync /dev/i2o/hda1
1 0 0 - removed
[root@mail etc]# mdadm --detail /dev/md2
/dev/md2:
Version : 00.90.01
Creation Time : Wed Mar 31 13:00:14 2010
Raid Level : raid1
Array Size : 2040128 (1992.65 MiB 2089.09 MB)
Device Size : 2040128 (1992.65 MiB 2089.09 MB)
Raid Devices : 2
Total Devices : 1
Preferred Minor : 2
Persistence : Superblock is persistent
Update Time : Wed Mar 31 18:29:46 2010
State : clean, degraded
Active Devices : 1
Working Devices : 1
Failed Devices : 0
Spare Devices : 0
UUID : 18328bf8:a9650c1c:d628a8ca:55ed7c90
Events : 0.14
Number Major Minor RaidDevice State
0 80 3 0 active sync /dev/i2o/hda3
1 0 0 - removed
[root@mail etc]# mdadm --detail /dev/md3
/dev/md3:
Version : 00.90.01
Creation Time : Wed Mar 31 13:00:14 2010
Raid Level : raid1
Array Size : 427312832 (407.52 GiB 437.57 GB)
Device Size : 427312832 (407.52 GiB 437.57 GB)
Raid Devices : 2
Total Devices : 1
Preferred Minor : 3
Persistence : Superblock is persistent
Update Time : Thu Apr 1 14:26:19 2010
State : clean, degraded
Active Devices : 1
Working Devices : 1
Failed Devices : 0
Spare Devices : 0
UUID : 33664e75:0af2b523:21022f35:0102a13e
Events : 0.27174
Number Major Minor RaidDevice State
0 80 2 0 active sync /dev/i2o/hda2
1 0 0 - removed
Secondo voi e' sufficente modificare /etc/mdadm.conf dichiarando num-devices=1 trasformandolo cosi:
[root@mail etc]# more /etc/mdadm.conf
# mdadm.conf written out by anaconda
DEVICE partitions
ARRAY /dev/md1 level=raid1 num-devices=1 UUID=084e3408:cba1f287:eade4522:23417ef8
ARRAY /dev/md2 level=raid1 num-devices=1 UUID=18328bf8:a9650c1c:d628a8ca:55ed7c90
ARRAY /dev/md3 level=raid1 num-devices=1 UUID=33664e75:0af2b523:21022f35:0102a13e
Grazie per l'aiuto.
filloweb