Managing Systems and Workgroups: A Guide for HP-UX System Administrators

Planning a Workgroup
Planning to Manage File Systems
Chapter 286
It is permissible to have a mixture of JFS and other file systems on a
single computer system.
NOTE Access Control Lists are supported in JFS beginning with JFS 3.3, which
is included with HP-UX 11i. You can obtain JFS for HP-UX 11.00 from
the HP Software Depot, http://software.hp.com.
To see if JFS is installed on an HP-UX 11.00 system, run
swlist -l fileset JFS
If JFS is installed, the output will include a list of JFS filesets. If you get
an error message, JFS is not installed.
File System Wrappers Many file system administration commands
now provide a -F FStype option that allows you to specify the file system
type. Use the following keywords to indicate the appropriate file system
type:
• vxfs for JFS (VxFS)
• hfs for HFS
• nfs for NFS
• cdfs for CDFS
• lofs for LOFS
HP-UX can determine the file system type for commands that operate on
a pre-existing file system, even if -F FStype is not specified on the
command line.
For further information on file system wrappers, see fs_wrapper (5).
For procedural information on file system conversion, see “Converting
Existing File Systems to JFS” on page 644.
Journaled File System, the File System Default
JFS is the HP-UX implementation of the VERITAS journaled file system
(VxFS), which features superb reliability and fast recovery. As of release
10.30, JFS is the default HP-UX file system. The HP-UX 11i operating
environments include VxFS.