Device configuration guidelines
The following are guidelines for configuring the devices for a clustered NetBackup server:
Choose the protection option, if possible. The use of persistent reserve is recommended, but take care to ensure that your hardware supports it correctly. See the NetBackup Administrator's Guide, Volume II for more information.https://www.veritas.com/support/en_US/article.DOC5332
With this option, NetBackup can recover and use a reserved drive after a failover (if NetBackup owns the reservation). If you use SPC-2 SCSI reserve, a drive reset usually is required because the reservation owner is inoperative. Consult the NetBackup Administrator's Guide for more information on how to reset a drive and on the setting.
Devices that are attached to one node but not to the other node are available only when the node where they are attached is online. For a NetBackup failover master server, attach all of the devices to each node where NetBackup is installed. Use shared SCSI or Fibre Channel connections as necessary to share the devices.
For a NetBackup media server failover configuration, configure devices from the NetBackup master server with the active node name as the NetBackup media server name.
For any tape devices that are in a robotic library, ensure that the robot drive number field is set correctly. Use the drive numbering scheme that the manufacturer of the robotic library has implemented. NetBackup considers the first drive in the robot as robot drive number 1. If the manufacturer's drive numbering scheme starts with a different number such as 0, adjust it accordingly.
Ensure that the robot numbers the failover server uses are consistent on all servers that use that robot. If the robot number that is defined on one node, does not match the number that is defined on another node, backups may fail.
When you create the storage units that reside on the cluster, select the virtual name of the failover NetBackup server for the setting.
If you choose for the media server when you create a storage unit, NetBackup selects the virtual NetBackup server when it performs any backup and restore operations.