root_domain panic

From: Cohen, Andy (Andy.Cohen@cognex.com)
Date: Fri Nov 08 2002 - 18:04:16 EST

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Hi,

We just had our 4100 5.1A had an AdvFS panic in the root domain:

AdvFS I/O error:
    Volume: /dev/disk/dsk3a
    Tag: 0xfffffff6.0000
    Page: 38
    Block: 254320
    Block count: 16
    Type of operation: Read
    Error: 5
    EEI: 0x3600
    I/O error appears to be due to a hardware problem.
    Check the binary error log for details.
AdvFS I/O error:
    Domain#Fileset: disk01#u01
    Mounted on: /disk01
    Volume: /dev/disk/dsk3h
    Tag: 0x0000000f.8002
    Page: 153
    Block: 2738416
    Block count: 8192
    Type of operation: Write
    Error: 5
    EEI: 0x3600
    I/O error appears to be due to a hardware problem.
    Check the binary error log for details.
    To obtain the name of the file on which
    the error occurred, type the command:
    /sbin/advfs/tag2name /disk01/.tags/15
AdvFS I/O error:
    Volume: /dev/disk/dsk3a
    Tag: 0xfffffff7.0000
    Page: 16
    Block: 245808
    Block count: 16
    Type of operation: Write
    Error: 5
    EEI: 0x3600
    I/O error appears to be due to a hardware problem.
    Check the binary error log for details.
Domain panic appears to be due to a hardware problem
Check the binary error log for more information.
panic (cpu 0): domain panic promoted because the domain is the root domain:
bs_osf_complete: metadata write failed
syncing disks... 95 95

Now if this weren't the root domain and I had an AdvFS panic I would addvol
another volume and rmvol this bad one. However with this being the root
disk I'm guessing I can't do that. Does anybody know of a workaround?

Here's what the root_domain looks like:

root==> showfdmn -k root_domain

               Id Date Created LogPgs Version Domain Name
3d0a579a.000e76f2 Fri Jun 14 16:52:42 2002 512 4 root_domain

  Vol 1K-Blks Free % Used Cmode Rblks Wblks Vol Name
   1L 306912 184584 40% on 256 256 /dev/disk/dsk3a

I'm pretty sure that the boot sector information on here so how do I fix
this?

Many thanks!!

===================================================
Andy Cohen
Database Systems Administrator
COGNEX Corporation
(508) 650-3079 Fax: (508) 650-3337
andy.cohen@cognex.com www.cognex.com
cell: (617) 470-0034
===================================================

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