HP-UX 11i June 2004 Release Notes

Disk and File Management
DeviceIDs Available on Software Pack
Chapter 11
234
DeviceIDs Available on Software Pack
new for June 2004 Now available on the June 2004 Software Pack is DeviceIDs, which will provide a
significant performance improvement for AutoFS at unmount time because automountd
will no longer have to make over-the-wire calls to every server in the mount table at
unmount time before unmounting a file system. This enhancement will cause file system
device IDs to be stored in the system mount table (/etc/mnttab) along with all the other
mount information. Once this is installed, applications can match file system entries in
the mount table based on device ID.
Features and Benefits
• Improved AutoFS performance at unmount time
• Other applications or file system types can also take advantage of this feature
• Other commands which would previously generate an over-the-wire stat call may
also take advantage of this new functionality
Documentation
For further information on DeviceIDs, see the following:
• DeviceIDs Product Note, available on the Software Pack media and at
http://docs.hp.com.
For more information about Software Pack and how you can obtain the DeviceIDs
product, see “Software Pack (Optional HP-UX 11i v1 Core Enhancements)” on page 58.