VERITAS File System 4.1 Administrator's Guide

VERITAS File System Quick Reference
Veritas File System Quick Reference
Appendix A196
NOTE After this operation, there is unused space at the end of the device. You can
then resize the device, but be careful not to make the device smaller than the
new size of the file system.
How to Reorganize a File System
You can reorganize (or compact) a fragmented file system using fsadm, even while the file
system is mounted. This may help shrink a file system that could not previously be decreased.
NOTE If a file system is full or busy, the reorg operation may fail.
To reorganize a VxFS file system, use the syntax:
fsadm [-F vxfs] [-e] [-d] [-E] [-D] [-r rawdev] mount_point
vxfs The file system type
-d Reorders directory entries to put subdirectory entries first, then all other
entries in decreasing order of time of last access. Also compacts directories
to remove free space.
-D Reports on directory fragmentation.
-e Minimizes file system fragmentation. Files are reorganized to have the
minimum number of extents.
-E Reports on extent fragmentation.
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/fstab
and fsadm cannot determine the raw device.
Example A-9 To reorganize the VxFS file system mounted at /ext
Enter:
# fsadm -F vxfs -EeDd /ext
How to Extend a File System Using extendfs
If a VxFS file system is not mounted, you can use the extendfs command to increase the size
of the file system.
To extend a VxFS file system, use the syntax: