Veritas File System 5.1 SP1 Administrator"s Guide (5900-1499, April 2011)

Table B-1
Kernel messages (continued)
Message and DefinitionMessage Number
WARNING: msgcnt x: mesg 038: V-2-38: vx_dataioerr - volume_name
file system file data [read|write] error in dev/block device_ID/block
■ 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.
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.
038
Diagnostic messages
Kernel messages
164