Lost disklabel - How to write new label - More information regard ing to my previous question

From: Padiyath Sreekumaran (Kumar.Padiyath_at_psi.ch)
Date: 05/02/05

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    Date: Mon, 02 May 2005 15:50:33 +0200
To: "'tru64-unix-managers@ornl.gov'" <tru64-unix-managers@ornl.gov>

          Hello,
          I have more information regarding my given problem. I had 3 defect
    disks
          which I replaced.From 3 domain in the HSZ40 attached raid disks I
    could
          mount 2 domains without errors. The third one which I need(where the
    disks
          are replaced) gives me the following error during the reboot:(This
    domain
          cannot be mounted)

          May 2 08:54:46 psw224 vmunix: ADVFS: using 2322 buffers containing
    18.14 megabytes of memory May 2 08:55:31 psw224 vmunix: AdvFS I/O error:
    May 2 08:55:31 psw224 vmunix: Volume: /dev/rz28c
    May 2 08:55:31 psw224 vmunix: Tag: 0xfffffff3.0000
    May 2 08:55:31 psw224 vmunix: Page: 49
    May 2 08:55:32 psw224 vmunix: Block: 880
    May 2 08:55:32 psw224 vmunix: Block count: 256
    May 2 08:55:32 psw224 vmunix: Type of operation: Read
    May 2 08:55:32 psw224 vmunix: Error: 5
    May 2 08:55:32 psw224 vmunix: AdvFS I/O error:
    May 2 08:55:32 psw224 vmunix: Volume: /dev/rz28c
    May 2 08:55:32 psw224 vmunix: Tag: 0xfffffff3.0000
    May 2 08:55:32 psw224 vmunix: Page: 33
    May 2 08:55:32 psw224 vmunix: Block: 624
    May 2 08:55:32 psw224 vmunix: Block count: 256
    May 2 08:55:32 psw224 vmunix: Type of operation: Read
    May 2 08:55:32 psw224 vmunix: Error: 5
    May 2 08:55:37 psw224 vmunix: AdvFS I/O error:
    May 2 08:55:37 psw224 vmunix: Volume: /dev/rz28c
    May 2 08:55:37 psw224 vmunix: Tag: 0xfffffff3.0000
    May 2 08:55:37 psw224 vmunix: Page: 1085
    May 2 08:55:37 psw224 vmunix: Block: 17456
    May 2 08:55:37 psw224 vmunix: Block count: 256
    May 2 08:55:37 psw224 vmunix: Type of operation: Read
    May 2 08:55:37 psw224 vmunix: Error: 5
    May 2 08:55:37 psw224 vmunix: AdvFS I/O error:
    May 2 08:55:37 psw224 vmunix: Volume: /dev/rz28c
    May 2 08:55:37 psw224 vmunix: Tag: 0xfffffff3.0000
    May 2 08:55:37 psw224 vmunix: Page: 1069
    May 2 08:55:37 psw224 vmunix: Block: 17200
    May 2 08:55:38 psw224 vmunix: Block count: 256
    May 2 08:55:38 psw224 vmunix: Type of operation: Read
    May 2 08:55:38 psw224 vmunix: Error: 5
    May 2 08:55:38 psw224 vmunix:
    May 2 08:55:38 psw224 vmunix: load_x_cache: bad status from bs_refpg of sbm
    May 2 08:55:38 psw224 vmunix:
    May 2 08:55:38 psw224 vmunix: AdvFS Domain Panic; Domain data_dom Id
    0x386a27a5.00051a10 May 2 08:55:38 psw224 vmunix: An AdvFS domain panic has
    occurred due to either a metadata write error or an inter nal inconsistency.
    This domain is being rendered inaccessible. May 2 08:55:38 psw224 vmunix:
    Please refer to guidelines in AdvFS Guide to File System Administration
    regarding w hat steps to take to recover this domain.

          Which utility can I try? I am trying salvage -D directoryname -V
    /dev/rz28h which gives the
          following error:

    salvage: I/O error
    salvage: read() failed
    salvage: I/O error
    salvage: read() failed
    salvage: I/O error
    salvage: read() failed
    salvage: I/O error
    salvage: read() failed
    salvage: I/O error
    salvage: read() failed
    salvage: I/O error
    salvage: read() failed
    salvage: I/O error

          I can read the label. There are 11 disks in the domain. Is there any
    utility with which
          I can get part of the information from the disks?

          Sorry for the trouble and thanks in advance.

          Regards,
          Kumar

    >
    > Hello,
    > I have a system with the following data:
    >
    > AlphaServer 3800
    > OS V4.0D
    > Connected via HAZ40 to a diskarray.
    >
    > The system(Server only) was not in operation the last
    > 6 months. Bur the diskarray was always switched on.
    > The battery(HSZ) is okay. I can see the disk array from boot prompt
    > as well as after booting. There are 2 members in ase. (Failover
    > configuration). The second server is not started. The problem is
    > I have lost the disklabel of the disks in the raid configuration.
    > Part of the
    > uerf command output:
    >
    > tza1 firmware version: DEC TZA
    > _SPO/A.14
    > scsi3 at tza1
    > rz25 at scsi3 target 1 lun 0
    > (LID=4)
    >
    > _() (Wide16)
    > rz26 at scsi3 target 2 lun 0
    > (LID=12)
    > _() (Wide16)
    > rz27 at scsi3 target 3 lun 0
    > (LID)
    > _() (Wide16)
    > rz28 at scsi3 target 4 lun 0
    > (LID=28)
    > _() (Wide16)
    > tcds1 at tc0 slot 3
    >
    >
    > The disklabel is corrupted. Iam using advanced file system. When I
    execute
    > "disklabel -r rz25", I get the following error:
    >
    > disklabel: /dev/rrz25a: I/O error
    >
    > I donot have no backup since we have moved to AFS File system. All
    > the the
    > user directories are moved to AFS. Now one user who does not have
    > an AFS account
    > likes to have one of his program.The question is How can I relabel
    > the disk
    > without destroying the datas on the disk?
    >
    > Any help is very much appreciated.
    ------------------------------------------------------------------
    Padiyath Sreekumar | Tel: +41.56.310.3643
    Paul Scherrer Institut | email: kumar.padiyath@psi.ch
    AIT | Office: WHGA/U132
    WHGA/U132 | Fax: +41.56.310.3649
    CH-5232 Villigen PSI |
    Switzerland |
    -----------------------------------------------------------------
    ------------------------------------------------------------------
    Padiyath Sreekumar | Tel: +41.56.310.3643
    Paul Scherrer Institut | email: kumar.padiyath@psi.ch
    AIT | Office: WHGA/U132
    WHGA/U132 | Fax: +41.56.310.3649
    CH-5232 Villigen PSI |
    Switzerland |
    -----------------------------------------------------------------

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