The slowest speed of the following components may limit the Fibre Transport throughput rate:

• The speed capability of the SAN client.

  The speed with which the client reads and writes to the file system or database affects performance).

• The read and write speed of the storage unit.

• The bandwidth of the computer PCI I/O memory.

  On the SAN clients, a non-PCI-X card on the PCI-X bus of the HBA reduces the speed of the controlling bus. NetBackup FT performance may not be affected as much as on a media server, but performance may degrade to unacceptable levels.

• The speed of the Fibre Channel pipe that transports the data.

• The topology of the Fibre Channel.

  Bottlenecks may occur when multiple data streams are sent through a shared element such as a trunk or an inter-switch link.