Note it is not recommended to start and stop exports

Note:
It is not recommended to start and stop exports individually; this
functionality should be provided through the start and stop operations of
HAVIP.
When HAVIP is not running, exports can exist on different nodes. After
the associated HAVIP is started, the exports gather on a single node.
Clients that are using an export that is stopped while HAVIP is running
raise the NFS error estale , and must dismount and remount the file
system.
When mounting an HANFS exported file system on a client, the following
CLIENT mount options are recommended:
hard,intr,retrans=10000
Oracle ACFS HANFS with NFS Locks
Oracle ACFS HANFS now supports HANFS NFS v4 with NFS Locks. This functionality
is only available on specific operating system (OS) platforms. To activate this
functionality, additional steps must be performed after the Oracle Grid Infrastructure
software is installed. Note that after these steps are completed, the OS NFS server
functionality of the cluster is managed by the Oracle Clusterware stack. In addition, the
location of certain OS NFS configuration files will be moved from their default location
to a designated Oracle ACFS file system.
Some common tasks are:
• Activate: acfshanfs addnode
• Uninstall: acfshanfs uninstall
• Check the installation status: acfshanfs installed
• Check if this platform is supported: acfshanfs supported
When activating the HANFS v4 lock functionality, the following command must be run
on each node:
# grid_home /bin/acfshanfs addnode -nfsv4lock -volume volume_device
The volume is formatted with an Oracle ACFS file system and mounted on a
designated Oracle ACFS clusterware mount point For example on Linux:
/dev/asm/nfs-81 on /var/lib/nfs type acfs (rw)
Restrictions on the Oracle ADVM volume include:
• No previously existing Oracle ACFS resource should exist for this new Oracle
ADVM volume.
• No Oracle ACFS file system should exist on this Oracle ADVM volume.
• This Oracle ADVM volume should not be in use anywhere in the cluster.
Chapter 11
Understanding Oracle ACFS Administration
11-53

When Oracle HANFS v4 lock functionality is activated, there are differences from
normal HANFS operations. The differences are noted in the following list:
• The OS NFS server is under Oracle Clusterware control through the
ora.netstorageservice resource. When starting and stopping the Oracle
Clusterware stack, the OS NFS server is also started and stopped.
• This resource has a dependency on an Oracle ACFS file system:
ora.data_ hostname .nfs.acfs
The hostname is the hostname of the first node on which the setup for Oracle
HANFS locking has been run.
• Only Oracle HANFS should be used to export NFS file systems from the Oracle
RAC cluster. The NFS server is configured and moved around the Oracle RAC
cluster; only file systems exported by Oracle HANFS are accessible when the NFS
server has migrated to an alternate cluster node.