About the Shared Storage Option
The Shared Storage Option allows multiple NetBackup servers (both NetBackup servers and NDMP hosts) to share individual tape drives (standalone drives or drives in a robotic library). NetBackup automatically allocates and unallocates the drives as backup and restore operations require. The Shared Storage Option requires appropriate hardware connectivity. For example, a fibre channel hub.
You can use Shared Storage Option in the following environments:
Fibre Channel SANs
Environments that do not use Fibre Channel, such as SCSI switches or multi-initiator configurations
The Shared Storage Option is a separately licensed and purchased NetBackup option that lets you share a specific number of physical drives.