About Fibre Transport media servers and VLANs
For an FT media server that has multiple network interfaces for VLANs, NetBackup must recognize the primary network interface of the host before any other network interfaces for the host. Each NetBackup host recognizes other NetBackup hosts by using its list. The list appears in the NetBackup Administration Console host properties Servers page for that host.
Ensure that the FT server's primary host name appears before any other interface names for that FT media server host. Do so in the Additional Servers lists of the following NetBackup hosts:
The primary server.
The FT media server.
All of the SAN clients that the FT media server backs up.
You may be able to use operating system commands to determine the primary interface. UNIX-type operating systems have a hostname command, which displays the short name of the primary interface. They also have a domainname command, which shows the domain name of the primary interface. On Windows, you can use the ipconfig -all command to display host and domain information.
See Backups failover to LAN even though Fibre Transport devices available .