Veritas File System 4.1 Release Notes (5900-0592, March 2010)

• Removable Storage Checkpoint Creation Mode
The default Storage Checkpoint creation mode is now removable.
• New tunable parameters
Two new tunable parameters, inode_aging_count and inode_aging_size, for use
with the Storage Checkpoint API, were added to the vxtunefs command. The vxtunefs
command sets or prints tuneable I/O parameters of mounted file systems. See the vxtunefs
(1M) for more information.
End of Product Support
VxFS 4.1 release does not support the creation or mounting of file systems with Disk Layout
Version 3. However, VxFS 4.1 still provides the capability to upgrade Disk Layout Version 3
using the vxfsconvert command, but this is the last major release to do so.
HP recommends that you upgrade file systems using older disk layouts to Disk Layout Version
6 other than the boot partition.
The QuickLog feature is not supported with VxFS 4.1. The multi-volume support feature replaces
most of the functionality provided by QuickLog. See “Veritas File System 4.1 Administrator's
Guide?, for more information on migrating QuickLog devices to the multi-volume support
function.
This is the last release to support shared (cluster) mounts on VxFS Disk Layout Version 5 on a
cluster file system. Upgrade all current cluster file system disk layouts to Disk Layout Version
6 to enable new Veritas File System features and to support upgrades in future releases.
See “Veritas File System 4.1 Administrator's Guide? for information on migrating QuickLog devices
to the multi-volume support function.
System Requirement
Following are the hardware and software requirements for VxFS 4.1 on HP-UX 11i Version 3.
Supported Hardware
For information on supported platforms for VxFS 4.1 on HP-UX 11i Version 3, see “Hardware
Support Matrix For VxFS 4.1 and VxVM 4.1 on HP-UX 11i Version 3? available at http://docs.hp.com.
OS Version
HP-UX 11i version 3
Required Patches
There are no patches that are required by VxFS 4.1 on HP-UX 11i Version3.
Known Problems And Workaround
VxFS 4.1 has the following known issues:
• Setting max_thread_proc Tunable
Problem
Setting max_thread_proc tunable to a low value causes system hung.
Workaround
This value must be maintained at or above 1100. If the value of this tunable is less than 1100,
the value will be automatically set to 1100 when VxFS is installed.
• DMAPI dm_get_dirattrs Skip Directory Entries
Problem
End of Product Support 13