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On 9/1/06, Richard Broersma Jr <rabroersma@×××××.com> wrote: |
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> > Did you remove the faulty device first? |
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> yup. |
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> Personalities : [raid1] [raid10] [multipath] |
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> md4 : active raid1 hdg1[1] |
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> 293049600 blocks [2/1] [_U] |
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> |
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> |
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> IIRC, raid devices start |
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> > numbering at 0, so it looks like this is trying to add a third device |
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> > (#2), instead of replacing #0 or #1. |
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> |
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> I am not exact sure on this point. Are you refering to the meta device? |
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|
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No, I mean the device numbers. I'm now at home, so I can test a bit |
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with my AMD64 box. When I create a raid1 array there, /proc/mdstat |
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contains: |
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|
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Personalities : [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] |
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md0 : active raid1 sdb2[1] sda2[0] |
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9775488 blocks [2/2] [UU] |
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[>....................] resync = 2.7% (271552/9775488) |
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finish=2.3min speed=67888K/sec |
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|
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Notice the 2 device nodes....[1] and [0]. I think your setup is |
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trying to add a [2], which probably doesn't work because the array was |
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created with --raid-devices=2. This is only a guess though, based on |
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the " as 2" part of the error message. |
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|
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Ok, so lets say I create an array with a missing element: |
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|
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~ > mdadm --create --level=1 --raid-devices=2 /dev/md0 missing /dev/sdb2 |
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mdadm: /dev/sdb2 appears to be part of a raid array: |
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level=raid1 devices=2 ctime=Sat Sep 2 02:07:13 2006 |
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Continue creating array? yes |
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mdadm: array /dev/md0 started. |
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~ > cat /proc/mdstat |
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Personalities : [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] |
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md0 : active raid1 sdb2[1] |
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9775488 blocks [2/1] [_U] |
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|
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unused devices: <none> |
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|
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Ok, so now let me try repairing it... |
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|
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~ > mdadm --add /dev/md0 /dev/sda2 |
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mdadm: added /dev/sda2 |
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~ > cat /proc/mdstat |
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Personalities : [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] |
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md0 : active raid1 sda2[2] sdb2[1] |
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9775488 blocks [2/1] [_U] |
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[>....................] recovery = 3.4% (340928/9775488) |
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finish=2.3min speed=68185K/sec |
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|
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unused devices: <none> |
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|
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Hmm, works fine.... :-( |
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|
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Ok, maybe stupid questions time. |
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|
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/dev/hdj1 does exist, right? |
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Is this the same drive that was once part of the array? Or a new drive? |
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If new, is the partition at least as large as /dev/hdg1? (double |
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check with fdisk output). |
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If the same drive, does it work if you do "mdadm --zero-superblock |
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/dev/hdj1" first? |
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What does "mdadm --examine /dev/hdj1" report? How about for /dev/hdg1? |
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|
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I know that is a lot of questions to ask, but I don't see anything |
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obviously wrong at this point...so I am grasping at straws. |
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|
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-Richard |
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-- |
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