Mirror down in SunFire 240R

From: Andreas Höschler (ahoesch_at_smartsoft.de)
Date: 03/29/05

  • Next message: L. Nguyen: "/etc/path_to_inst error" 
    Date: Tue, 29 Mar 2005 22:19:45 +0200
To: sunmanagers@sunmanagers.org

    Dear managers,

    we have a production machine Sun Fire 240 with two mirrored 73 GByte
    SCSI-disks. The mirror was fine for a year. Now I get the following:

    bash-2.05# metastat
    d3: Mirror
         Submirror 0: d13
           State: Okay
         Submirror 1: d23
           State: Needs maintenance
         Pass: 1
         Read option: roundrobin (default)
         Write option: parallel (default)
         Size: 10247232 blocks (4.9 GB)

    d13: Submirror of d3
         State: Okay
         Size: 10247232 blocks (4.9 GB)
         Stripe 0:
             Device Start Block Dbase State Reloc Hot Spare
             c1t0d0s3 0 No Okay Yes

    d23: Submirror of d3
         State: Unavailable
         Size: 10247232 blocks (4.9 GB)
         Stripe 0:
             Device Start Block Dbase State Reloc Hot Spare
             c1t1d0s3 0 No - Yes

    d1: Mirror
         Submirror 0: d11
           State: Okay
         Submirror 1: d21
           State: Needs maintenance
         Pass: 1
         Read option: roundrobin (default)
         Write option: parallel (default)
         Size: 14337984 blocks (6.8 GB)

    d11: Submirror of d1
         State: Okay
         Size: 14337984 blocks (6.8 GB)
         Stripe 0:
             Device Start Block Dbase State Reloc Hot Spare
             c1t0d0s1 0 No Okay Yes

    d21: Submirror of d1
         State: Unavailable
         Size: 14337984 blocks (6.8 GB)
         Stripe 0:
             Device Start Block Dbase State Reloc Hot Spare
             c1t1d0s1 0 No - Yes

    d0: Mirror
         Submirror 0: d10
           State: Okay
         Submirror 1: d20
           State: Needs maintenance
         Pass: 1
         Read option: roundrobin (default)
         Write option: parallel (default)
         Size: 114591936 blocks (54 GB)

    d10: Submirror of d0
         State: Okay
         Size: 114591936 blocks (54 GB)
         Stripe 0:
             Device Start Block Dbase State Reloc Hot Spare
             c1t0d0s0 0 No Okay Yes

    d20: Submirror of d0
         State: Unavailable
         Size: 114591936 blocks (54 GB)
         Stripe 0:
             Device Start Block Dbase State Reloc Hot Spare
             c1t1d0s0 0 No - Yes

    Device Relocation Information:
    Device Reloc Device ID
    c1t1d0 Yes id1,sd@SSEAGATE_ST373307LSUN72G_3HZ6Y3DJ00007431G1EF
    c1t0d0 Yes id1,sd@SSEAGATE_ST373307LSUN72G_3HZ6Y1YR00007431G08H

    The system is up and running but very obviously there is something
    wrong with the second disk. I have never encountered such a situation
    and am not sure what to do now. I would really appreciate your hints
    before I do something wrong with a production machine.

    Thanks a lot in advance!

    Regards,

       Andreas
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