* MDADM Guru Needed
@ 2003-10-29 16:43 AndyLiebman
0 siblings, 0 replies; only message in thread
From: AndyLiebman @ 2003-10-29 16:43 UTC (permalink / raw)
To: linux-raid
Hi. I'm hoping somebody can help me out here so that I don't destroy my data.
I have a set of RAID arrays made with Firewire Drives. I have three pairs of
RAID 1's (md0, md1, and md2). On top of that I have a RAID 0 striping all
three RAID 1s together.
I just had to reinstall my Linux distribution -- Mandrake 9.2. It's a long
story. But I shut down cleanly, disconnected the Firewire Drives. Reinstalled
Mandrake 9.2. Reinstalled MDADM, Raidtools, xfs file support, etc.
When I attempted to restart my arrays with mdadm (using the UUID information
I had previously saved), I got some serious errors . I hope someone has a
good suggestion -- step-by-step -- about what I have to do to reactivate/recover
my arrays so that I don't lose my data.
[root@localhost avidserver]# mdadm -Av /dev/md0
--uuid=5cc02c9f:8d83c7b2:c9eafc6
8:2a40900e /dev/sd*
mdadm: looking for devices for /dev/md0
mdadm: /dev/sd is not a block device.
mdadm: /dev/sd has wrong uuid.
mdadm: no RAID superblock on /dev/sda
mdadm: /dev/sda has wrong uuid.
mdadm: /dev/sda1 is identified as a member of /dev/md0, slot 0.
mdadm: no RAID superblock on /dev/sdb
mdadm: /dev/sdb has wrong uuid.
mdadm: /dev/sdb1 is identified as a member of /dev/md0, slot 1.
mdadm: no RAID superblock on /dev/sdc
mdadm: /dev/sdc has wrong uuid.
mdadm: /dev/sdc1 has wrong uuid.
mdadm: no RAID superblock on /dev/sdd
mdadm: /dev/sdd has wrong uuid.
mdadm: /dev/sdd1 has wrong uuid.
mdadm: no RAID superblock on /dev/sde
mdadm: /dev/sde has wrong uuid.
mdadm: /dev/sde1 has wrong uuid.
mdadm: no RAID superblock on /dev/sdf
mdadm: /dev/sdf has wrong uuid.
mdadm: /dev/sdf1 has wrong uuid.
mdadm: added /dev/sdb1 to /dev/md0 as 1
mdadm: added /dev/sda1 to /dev/md0 as 0
mdadm: /dev/md0 has been started with 2 drives.
[root@localhost avidserver]# mdadm -Av /dev/md2
--uuid=4c2bd3c9:563b2117:cb9ebfa
0:0e5d4594 /dev/sd*
mdadm: looking for devices for /dev/md2
mdadm: /dev/sd is not a block device.
mdadm: /dev/sd has wrong uuid.
mdadm: no RAID superblock on /dev/sda
mdadm: /dev/sda has wrong uuid.
mdadm: /dev/sda1 has wrong uuid.
mdadm: no RAID superblock on /dev/sdb
mdadm: /dev/sdb has wrong uuid.
mdadm: /dev/sdb1 has wrong uuid.
mdadm: no RAID superblock on /dev/sdc
mdadm: /dev/sdc has wrong uuid.
mdadm: /dev/sdc1 has wrong uuid.
mdadm: no RAID superblock on /dev/sdd
mdadm: /dev/sdd has wrong uuid.
mdadm: /dev/sdd1 is identified as a member of /dev/md2, slot 0.
mdadm: no RAID superblock on /dev/sde
mdadm: /dev/sde has wrong uuid.
mdadm: /dev/sde1 has wrong uuid.
mdadm: no RAID superblock on /dev/sdf
mdadm: /dev/sdf has wrong uuid.
mdadm: /dev/sdf1 is identified as a member of /dev/md2, slot 1.
mdadm: added /dev/sdd1 to /dev/md2 as 0
mdadm: added /dev/sdf1 to /dev/md2 as 1
mdadm: /dev/md2 assembled from 1 drive - need all 2 to start it (use --run to
in sist).
[root@localhost avidserver]# mdadm -Av /dev/md1
--uuid=c80b59ef:6c1fc70c:7e881254:d3e7e3c3 /dev/sd*
mdadm: looking for devices for /dev/md1
mdadm: /dev/sd is not a block device.
mdadm: /dev/sd has wrong uuid.
mdadm: no RAID superblock on /dev/sda
mdadm: /dev/sda has wrong uuid.
mdadm: /dev/sda1 has wrong uuid.
mdadm: no RAID superblock on /dev/sdb
mdadm: /dev/sdb has wrong uuid.
mdadm: /dev/sdb1 has wrong uuid.
mdadm: no RAID superblock on /dev/sdc
mdadm: /dev/sdc has wrong uuid.
mdadm: /dev/sdc1 is identified as a member of /dev/md1, slot 0.
mdadm: no RAID superblock on /dev/sdd
mdadm: /dev/sdd has wrong uuid.
mdadm: /dev/sdd1 has wrong uuid.
mdadm: no RAID superblock on /dev/sde
mdadm: /dev/sde has wrong uuid.
mdadm: /dev/sde1 is identified as a member of /dev/md1, slot 1.
mdadm: no RAID superblock on /dev/sdf
mdadm: /dev/sdf has wrong uuid.
mdadm: /dev/sdf1 has wrong uuid.
mdadm: device 1 in /dev/md1 has wrong state in superblock, but /dev/sde1
seems ok
mdadm: added /dev/sde1 to /dev/md1 as 1
mdadm: added /dev/sdc1 to /dev/md1 as 0
mdadm: failed to RUN_ARRAY /dev/md1: Invalid argument
I checked all of my individual devices (sda1, sdb1, sdc1, etc. ) with mdadm
-E. Here's the result. By the way, I noticed that what used to be sde1 before I
had to reinstall was now sdf1. I could tell by the UUID number and the
information about which PCI card (I have 5 of them) the drive was plugged into. But
change device ids isn't supposed to matter with mdadm.
[root@localhost avidserver]# mdadm -E /dev/sda1
/dev/sda1:
Magic : a92b4efc
Version : 00.90.00
UUID : 5cc02c9f:8d83c7b2:c9eafc68:2a40900e
Creation Time : Fri Oct 24 10:47:08 2003
Raid Level : raid1
Device Size : 199141632 (189.92 GiB 203.92 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 0
Update Time : Wed Oct 29 06:43:42 2003
State : dirty, no-errors
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Checksum : 12b45d42 - correct
Events : 0.28
Number Major Minor RaidDevice State
this 0 8 1 0 active sync
/dev/scsi/host1/bus0/target0/lun0/part1
0 0 8 1 0 active sync
/dev/scsi/host1/bus0/target0/lun0/part1
1 1 8 17 1 active sync
/dev/scsi/host2/bus0/target0/lun0/part1
[root@localhost avidserver]# mdadm -E /dev/sdb1
/dev/sdb1:
Magic : a92b4efc
Version : 00.90.00
UUID : 5cc02c9f:8d83c7b2:c9eafc68:2a40900e
Creation Time : Fri Oct 24 10:47:08 2003
Raid Level : raid1
Device Size : 199141632 (189.92 GiB 203.92 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 0
Update Time : Wed Oct 29 06:43:42 2003
State : dirty, no-errors
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Checksum : 12b45d54 - correct
Events : 0.28
Number Major Minor RaidDevice State
this 1 8 17 1 active sync
/dev/scsi/host2/bus0/target0/lun0/part1
0 0 8 1 0 active sync
/dev/scsi/host1/bus0/target0/lun0/part1
1 1 8 17 1 active sync
/dev/scsi/host2/bus0/target0/lun0/part1
[root@localhost avidserver]# mdadm -E /dev/sdc1
/dev/sdc1:
Magic : a92b4efc
Version : 00.90.00
UUID : c80b59ef:6c1fc70c:7e881254:d3e7e3c3
Creation Time : Sat Oct 25 10:39:48 2003
Raid Level : raid1
Device Size : 199141632 (189.92 GiB 203.92 GB)
Raid Devices : 2
Total Devices : 1
Preferred Minor : 1
Update Time : Wed Oct 29 01:19:30 2003
State : dirty, no-errors
Active Devices : 1
Working Devices : 1
Failed Devices : 0
Spare Devices : 0
Checksum : bae0f776 - correct
Events : 0.17
Number Major Minor RaidDevice State
this 0 8 33 0 active sync
/dev/scsi/host2/bus0/target1/lun0/part1
0 0 8 33 0 active sync
/dev/scsi/host2/bus0/target1/lun0/part1
1 1 0 0 1 faulty removed
[root@localhost avidserver]# mdadm -E /dev/sdd1
/dev/sdd1:
Magic : a92b4efc
Version : 00.90.00
UUID : 4c2bd3c9:563b2117:cb9ebfa0:0e5d4594
Creation Time : Sat Oct 25 17:27:01 2003
Raid Level : raid1
Device Size : 199141632 (189.92 GiB 203.92 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 2
Update Time : Tue Oct 28 20:22:28 2003
State : clean, no-errors
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Checksum : b0a8f4b4 - correct
Events : 0.16
Number Major Minor RaidDevice State
this 0 8 49 0 active sync
/dev/scsi/host3/bus0/target0/lun0/part1
0 0 8 49 0 active sync
/dev/scsi/host3/bus0/target0/lun0/part1
1 1 8 65 1 active sync
/dev/scsi/host4/bus0/target0/lun0/part1
[root@localhost avidserver]# mdadm -E /dev/sde1
/dev/sde1:
Magic : a92b4efc
Version : 00.90.00
UUID : c80b59ef:6c1fc70c:7e881254:d3e7e3c3
Creation Time : Sat Oct 25 10:39:48 2003
Raid Level : raid1
Device Size : 199141632 (189.92 GiB 203.92 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 1
Update Time : Tue Oct 28 20:22:28 2003
State : clean, no-errors
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Checksum : bae0b263 - correct
Events : 0.16
Number Major Minor RaidDevice State
this 1 8 81 1 active sync
/dev/scsi/host4/bus0/target1/lun0/part1
0 0 8 33 0 active sync
/dev/scsi/host2/bus0/target1/lun0/part1
1 1 8 81 1 active sync
/dev/scsi/host4/bus0/target1/lun0/part1
[root@localhost avidserver]# mdadm -E /dev/sdf1
/dev/sdf1:
Magic : a92b4efc
Version : 00.90.00
UUID : 4c2bd3c9:563b2117:cb9ebfa0:0e5d4594
Creation Time : Sat Oct 25 17:27:01 2003
Raid Level : raid1
Device Size : 199141632 (189.92 GiB 203.92 GB)
Raid Devices : 2
Total Devices : 0
Preferred Minor : 2
Update Time : Wed Oct 29 06:38:20 2003
State : clean, no-errors
Active Devices : 1
Working Devices : 1
Failed Devices : -1
Spare Devices : 0
Checksum : b0a984a3 - correct
Events : 0.19
Number Major Minor RaidDevice State
this 1 8 81 1 active sync
/dev/scsi/host4/bus0/target1/lun0/part1
0 0 0 0 0 faulty removed
1 1 8 81 1 active sync
/dev/scsi/host4/bus0/target1/lun0/part1
I hope somebody can make some sense of this and tell me what to do next.
Thanks in advance.
Andy Liebman
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2003-10-29 16:43 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2003-10-29 16:43 MDADM Guru Needed AndyLiebman
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.