4.0.0 HP PolyServe Software for Windows File Serving administration guide (T5392-96047, March 2010)

If HP PolyServe Software detects that a Virtual File Share can no longer be accessed
on the primary node, by default Matrix Server will fail over the associated Virtual
CIFS Server to one of the designated backup nodes. Clients then access the Virtual
CIFS Server’s Virtual File Shares from that node. Because the files associated with
the Virtual File Shares are located on a PSFS cluster filesystem, the backup node can
immediately access the data.
By default, the Virtual CIFS Server will remain active on the backup node. However,
you can customize the failover and failback behavior. For example, after access to
the Virtual File Share is restored on the original node, you may want the Virtual CIFS
Server to fail back to that node.
Virtual CIFS Servers providing multiple Virtual File Shares
Multiple Virtual File Shares can be associated with a Virtual CIFS Server, and multiple
Virtual CIFS Servers can be supported on a physical node. Also, a node can host
multiple active Virtual CIFS Servers while simultaneously serving as a backup for
Virtual CIFS Servers that are active on other nodes.
In the following example, the first node is primary for Virtual CIFS Server VFS1 and
a backup node for Virtual CIFS Server VFS2. The second node is primary for Virtual
CIFS Server VFS2 and is a backup for VFS1. Node three is a backup for both Virtual
CIFS Servers.
Configure Virtual CIFS Servers18