VERITAS File System 4.1 Release Notes (June 2006)

VERITAS File System 4.1 Release Notes
End of Product Support
Chapter 114
— The delaylog option is now the default intent logging mount option. The change of
the default mount option from log to delaylog does not increase the risk of data loss,
but allows Base-VxFS to cache data to improve performance. For more information on
the delaylog option refer to VERITAS File System 4.1 Administrator's Guide.
— The default Storage Checkpoint creation mode is now removable.
— Operation of the intent log replay was improved to increase the speed of recovery
after a file system failure.
— The histlog function was implemented in the fsdb_vxfs command. The history log
records structural changes to the file system to aid in product support.
— Two new tunable parameters, inode_aging_count and inode_aging_size, for use
with the Storage Checkpoint API, were added to the vxtunefs command. See the
vxtunefs(1M) manual page for more information.
More VxFS functions can be performed from the VERITAS Enterprise Administrator
(VEA) GUI. For more information on VEA refer to the VERITAS Enterprise Administrator
(VEA 500 Series) Getting Started guide.
The vxfsu_get_ioffsets library call was renamed vxfs_get_ioffsets.
• VxFS Enhancement
The vx_ninode and vxfs_bc_bufhwm can be dynamically tuned without rebooting the
machine. The changes take effect immediately, although they can be optionally made to
take effect only after a reboot. For for more information on VxFS enhancements refer to
the VERITAS File System 4.1 Administrator’s Guide.
End of Product Support
The VxFS 4.1 release does not support the creation or mounting of file systems using the Disk
Layout Version 3. However, VxFS 4.1 still provides the capability to upgrade Disk Layout
Version 3 using the vxfsconvert utility, but this is the last major release to do so. HP
recommends that you upgrade all older disk layouts.
HP recommends that you upgrade file systems using older disk layouts to Disk Layout
Version 6. For more information on upgrading see “Compatibility With Previous Versions of
VxFS” on page 16.
The QuickLog feature is not available in the VxFS 4.1 release. The multi-volume support
feature replaces most of the functionality provided by QuickLog. For more information on
migrating QuickLog devices to the multi-volume support function refer to the VERITAS File
System 4.1 Administrator's Guide.