VERITAS File SystemÖ 3.5 (HP OnlineJFS/JFS3.5) AdministratorÆs Guide (December 2002)

Appendix B
Kernel Messages
Kernel Messages
127
038 WARNING: msgcnt
x : vxfs: mesg 038: vx_dataioerr - file system file data error
• Description
A read or a write error occurred while accessing file data. The message specifies whether
the disk I/O that failed was a read or a write. File data includes data currently in files and
free blocks. If the message is printed because of a read or write error to a file, another
message that includes the inode number of the file will print. The message may be printed
as the result of a read or write error to a free block, since some operations allocate an
extent and immediately perform I/O to it. If the I/O fails, the extent is freed and the
operation fails. The message is accompanied by a message from the disk driver regarding
the disk I/O error.
•Action
Resolve the condition causing the disk error. If the error was the result of a temporary
condition (such as accidentally turning off a disk or a loose cable), correct the condition.
Check for loose cables, etc. If any file data was lost, restore the files from backups.
Determine the file names from the inode number (see the ncheck (1M) manual page for
more information.)
If an actual disk error occurred, make a backup of the file system, replace or reformat the
disk drive, and restore the file system from the backup. Consult the documentation
specific to your system for information on how to recover from disk errors. The disk driver
should have printed a message that may provide more information.
039 WARNING: msgcnt
x : vxfs: mesg 039: vx_writesuper - file system super-block write error
• Description
An attempt to write the file system super block failed due to a disk I/O error. If the file
system was being mounted at the time, the mount will fail. If the file system was mounted
at the time and the full fsck flag was being set, the file system will probably be disabled
and Message 031 will also be printed. If the super-block was being written as a result of a
sync operation, no other action is taken.
•Action
Resolve the condition causing the disk error. If the error was the result of a temporary
condition (such as accidentally turning off a disk or a loose cable), correct the condition.
Check for loose cables, etc. Unmount the file system and use fsck to run a full structural
check.
If an actual disk error occurred, make a backup of the file system, replace or reformat the
disk drive, and restore the file system from backups. Consult the documentation specific to
your system for information on how to recover from disk errors. The disk driver should
have printed a message that may provide more information.
Message
Number
Message and Definition