If a VxFS file system is not large enough, you can increase its size. The size of the file system is specified in units of 1024-byte blocks (or sectors).
Note:
If a file system is full, busy, or too fragmented, the resize operation may fail.
The device must have enough space to contain the larger file system.
See the Veritas Volume Manager Administrator's Guide.
To extend a VxFS file system
Use the fsadm command to extend a VxFS file system:
fsadm [-b newsize] [-r rawdev] \
mount_point
newsize
The size (in sectors) to which the file system will
increase.
mount_point
The file system's mount point.
-r rawdev
Specifies the path name of the raw
device if there is no entry in /etc/filesystems and fsadm cannot
determine the raw device.