3.7.0 HP StorageWorks HP Scalable NAS File Serving Software administration guide - HP Scalable NAS 3.7 for Linux (AG513-96002, October 2009)

You can enter the DNS name or IP address for each Virtual NFS Service directly on
the dialog, or you can specify a range of virtual IP addresses to be used for the
Virtual NFS Services. To specify a range, click Automatically create range of VNFS
addresses. Then specify the range on the dialog that appears next.
When you click OK, the IP addresses will be filled in on the “Create a Spanning Set
of Virtual NFS Services” dialog.
After specifying the DNS names or IP addresses for the Virtual NFS Services, you
can set the policy, which determines the failback action that the Virtual NFS Services
will take following a failover to a backup node. The options are:
• AUTOFAILBACK. This policy is intended to return the Virtual NFS Service to its
original configuration, or as close to it as possible, when the primary node is re-
turned to service. After the Virtual NFS Service fails over to a backup node, HP
Scalable NAS watches the health of the nodes that are higher in the list of servers
configured for that Virtual NFS Service. When the health of one of these nodes
is equal to or greater than the backup node where the Virtual NFS Service currently
resides, the Virtual NFS Service will automatically attempt to fail over to that node.
• NOFAILBACK. This policy is intended to minimize failovers. The Virtual NFS
Service remains active on the backup node, even after the primary node is returned
to service, until a “healthier” node becomes available, at which point the Virtual
NFS Service fails over to that node. (On a “healthier” node, more of the services
associated with the Virtual NFS Service will be up than on the node currently
hosting the Virtual NFS Service.)
When you click OK on the “Create a Spanning Set of Virtual NFS Services” dialog,
you will return to the Add Export Group dialog. Then click Apply or OK to create the
Export Group, or configure the advanced options for the high-availability monitor as
described under Advanced options for Export Group monitors, page 176.
Configure FS Option for Linux174