HP-UX HB v13.00 Ch-14 - JFS

HP-UX Handbook – Rev 13.00 Page 45 (of 47)
Chapter 14 Journaled File System (JFS)
October 29, 2013
# newfs –F vxfs /dev/vgXX/rlvolX
# mount /dev/vgXX/lvolX <mountpoint>
Online JFS
Only file systems which are multiple of 32 MB can be reduced online (it depends on the
allocated extent distribution). A backup before execution is recommended
# fsadm –F vxfs –d –D –e –E <mountpoint>
-d perform directory defragmentation
-e perform extent defragmentation
# fsadm –F vxfs –b <n> <mountpoint> -b <n> set new file system size to n KB
# lvreduce –L <n> /dev/vgXX/lvolX -L <n> set new size of lvol to n MB
Enabling large file support
Base JFS
# umount <mountpoint>
# fsadm -F vxfs -o largefiles /dev/vgXX/rlvolX
# mount -F vxfs -o largefiles /dev/vgXX/lvolX <mountpoint>
entry in /etc/fstab (example):
/dev/vgXX/lvolX <mountpoint> vxfs delaylog,largefiles 0 2
check the largefile option: # fsadm -F vxfs <mountpoint>
Online JFS
# fsadm -F vxfs -o largefiles <mountpoint>
entry in /etc/fstab (example):
/dev/vgXX/lvolX <mountpoint> vxfs delaylog,largefiles 0 2
check the largefile option:
# fsadm -F vxfs <mountpoint>