[OpenIndiana-discuss] cleaning out stale entries in zpool cache

[George Wilson]

Since these disks are mirrors in your current pool, you could detach them and then try dd-ing over the first megabyte of the disk. This should blow away the partition table. I would verify that you can no longer see the disk by using the 'zdb' command below. Once you're satisfied then you can re-attach it your mirror.

- George

On Oct 24, 2011, at 10:26 AM, Dan Swartzendruber wrote:

> George Wilson wrote:
>> Dan,
>> 
>> I suspect that the problem is that your original pool was built using a couple of p0 devices. Can you do a 'zdb -l /dev/rdsk/c0t50014EE204411A53d0p0' and send that output?
>>  
> I seem to recall way back I was in fact playing around with 'p0' for some stupid reason.  Here you are:
> 
> root at nas:~# zdb -l /dev/rdsk/c0t50014EE204411A53d0p0
> 
> --------------------------------------------
> LABEL 0
> --------------------------------------------
> failed to unpack label 0
> --------------------------------------------
> LABEL 1
> --------------------------------------------
> failed to unpack label 1
> --------------------------------------------
> LABEL 2
> --------------------------------------------
>    version: 15
>    name: 'tank'
>    state: 1
>    txg: 1483
>    pool_guid: 2892264051913514813
>    hostid: 3835746931
>    hostname: 'nas'
>    top_guid: 18276335273809533634
>    guid: 1797254204209569000
>    vdev_tree:
>        type: 'raidz'
>        id: 0
>        guid: 18276335273809533634
>        nparity: 1
>        metaslab_array: 23
>        metaslab_shift: 34
>        ashift: 9
>        asize: 3200651100160
>        is_log: 0
>        children[0]:
>            type: 'disk'
>            id: 0
>            guid: 1797254204209569000
>            path: '/dev/label/disk1'
>            whole_disk: 0
>            DTL: 32
>        children[1]:
>            type: 'disk'
>            id: 1
>            guid: 15672587174620045917
>            path: '/dev/label/disk2'
>            whole_disk: 0
>            DTL: 31
>        children[2]:
>            type: 'disk'
>            id: 2
>            guid: 10581259236987591007
>            path: '/dev/label/disk3'
>            whole_disk: 0
>            DTL: 30
>        children[3]:
>            type: 'disk'
>            id: 3
>            guid: 3439542365145273072
>            path: '/dev/label/disk4'
>            whole_disk: 0
>            DTL: 29
>        children[4]:
>            type: 'disk'
>            id: 4
>            guid: 8233020508343454683
>            path: '/dev/label/disk5'
>            whole_disk: 0
>            DTL: 28
> --------------------------------------------
> LABEL 3
> --------------------------------------------
>    version: 15
>    name: 'tank'
>    state: 1
>    txg: 1483
>    pool_guid: 2892264051913514813
>    hostid: 3835746931
>    hostname: 'nas'
>    top_guid: 18276335273809533634
>    guid: 1797254204209569000
>    vdev_tree:
>        type: 'raidz'
>        id: 0
>        guid: 18276335273809533634
>        nparity: 1
>        metaslab_array: 23
>        metaslab_shift: 34
>        ashift: 9
>        asize: 3200651100160
>        is_log: 0
>        children[0]:
>            type: 'disk'
>            id: 0
>            guid: 1797254204209569000
>            path: '/dev/label/disk1'
>            whole_disk: 0
>            DTL: 32
>        children[1]:
>            type: 'disk'
>            id: 1
>            guid: 15672587174620045917
>            path: '/dev/label/disk2'
>            whole_disk: 0
>            DTL: 31
>        children[2]:
>            type: 'disk'
>            id: 2
>            guid: 10581259236987591007
>            path: '/dev/label/disk3'
>            whole_disk: 0
>            DTL: 30
>        children[3]:
>            type: 'disk'
>            id: 3
>            guid: 3439542365145273072
>            path: '/dev/label/disk4'
>            whole_disk: 0
>            DTL: 29
>        children[4]:
>            type: 'disk'
>            id: 4
>            guid: 8233020508343454683
>            path: '/dev/label/disk5'
>            whole_disk: 0
>            DTL: 28
> 
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