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

      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: [email protected]
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: [email protected]
AIT                      |   Office: WHGA/U132 
WHGA/U132                |   Fax: +41.56.310.3649
CH-5232 Villigen PSI     | 
Switzerland              |
-----------------------------------------------------------------