SUMMARY: how to clear a stale soft partition

Well, I ended up solving this one myself.  I was able to remove the soft
partitions by bringing the SDS patch level up to 108693-24.

-jeff

--- Jeff Horwitz <jhorwitz75@yahoo.com> wrote:
> Hello managers,
> 
> This one's been bugging me for a while.  I have a V480 running Solaris 8 and
> DiskSuite 4.2.1 that used to be attached to an FC StorEdge A5200.  This
> machine
> was moved to another location where we had no use for the A5200.  However,
> before moving the server I did not clear any of the A5200 metadevices (soft
> partitions from a RAID 0+1 pool), and DiskSuite thinks they still exist.
> 
> I had trouble clearing the devices in runlevel 3, so i rebooted into single
> user mode after telling the mirrors not to sync using metaparam -p 0.  Now I
> am
> able to break the RAID 0+1 mirror (d100), but when try to clear any of the
> soft
> partitions (e.g. d50), it tries to access the underlying disk device and
> fails
> miserably:
> 
> # metaclear -f d50
> WARNING: md: d101: cannot load driver ssd
> WARNING: md: d101: cannot load driver ssd
> WARNING: md: d101: cannot load driver ssd
> WARNING: md: d101: cannot load driver ssd
> WARNING: md: d101: cannot load driver ssd
> WARNING: md: d101: cannot load driver ssd
> WARNING: md: d101: cannot load driver ssd
> WARNING: md d100: open error on /dev/dsk/c3t0d0s3
> [more errors]
> metaclear: no error
> 
> So my question is: short of blowing away and recreating the metadb, has
> anyone
> been able to clear metadevices whose physical devices have been removed?  And
> are these soft partitions particularly stubborn b/c of the extent headers
> that
> are on the devices themselves?
> 
> Thanks,
> -jeff
> 
> P.S.  metastat output is below.
> 
> d10: Mirror
>     Submirror 0: d11
>       State: Needs maintenance
>     Submirror 1: d12
>       State: Needs maintenance
>     Pass: 1
>     Read option: roundrobin (default)
>     Write option: parallel (default)
>     Size: 1027216 blocks
> 
> d11: Submirror of d10
>     State: Needs maintenance
>     Invoke: metasync d10
>     Size: 1027216 blocks
>     Stripe 0:
>         Device              Start Block  Dbase State        Hot Spare
>         c0t0d0s0                   0     No    Okay
> 
> 
> d12: Submirror of d10
>     State: Needs maintenance
>     Invoke: metasync d10
>     Size: 1027216 blocks
>     Stripe 0:
>         Device              Start Block  Dbase State        Hot Spare
>         c0t1d0s0                   0     No    Okay
> 
> 
> d20: Concat/Stripe
>     Size: 17245920 blocks
>     Stripe 0: (interlace: 248 blocks)
>         Device              Start Block  Dbase
>         c0t0d0s7                4712     Yes
>         c0t1d0s7                4712     Yes
> 
> d30: Soft Partition
>     Component: d100
>     State: Okay
>     Size: 125829120 blocks
>         Extent              Start Block              Block count
>              0                     2890                104857600
>              1                249563982                 20971520
> 
> d40: Soft Partition
>     Component: d100
>     State: Okay
>     Size: 125829120 blocks
>         Extent              Start Block              Block count
>              0                104860491                104857600
>              1                228592461                 20971520
> 
> d50: Soft Partition
>     Component: d100
>     State: Okay
>     Size: 18874368 blocks
>         Extent              Start Block              Block count
>              0                209718092                 18874368
> 
> d100: Mirror
>     Submirror 0: d101
>       State: Okay
>     Pass: 0
>     Read option: roundrobin (default)
>     Write option: parallel (default)
>     Size: 426745746 blocks
> 
> d101: Submirror of d100
>     State: Okay
>     Hot spare pool: hsp001
>     Size: 426745746 blocks
>     Stripe 0: (interlace: 107 blocks)
>         Device              Start Block  Dbase State        Hot Spare
>         c3t0d0s3                   0     No    Okay
>         c3t1d0s3                2889     No    Okay
>         c3t2d0s3                2889     No    Okay
>         c3t3d0s3                2889     No    Okay
>         c3t4d0s3                2889     No    Okay
>         c3t5d0s3                2889     No    Okay
> 
> 
> hsp001: 1 hot spare
>         c3t6d0s3                Available       71127180 blocks
> 
> hsp002: 1 hot spare
>         c4t22d0s3               Available       71127180 blocks
> 
> 
> 
> 
> 	
> 		
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