HP JFS 3.3 and HP OnLineJFS 3.3 VERITAS File System 3.3 System Administrator's Guide

130 AppendixA
Kernel Messages
File System Response to Problems
Although some minor file system operations still work, most simply
return EIO. The only thing that can be done when the file system is
disabled is to do a umount and run a full fsck.
Although a log replay may produce a clean file system, do a full
structural check to be safe. To do a full structural check, enter:
# fsck -F vxfs -o full -y /dev/rdsk/c1t0d0
The file system usually becomes disabled because of disk errors. Disk
failures that disable a file system should be fixed as quickly as possible
(see fsck_vxfs(1M)).