HP EML E-series Tape Libraries - Manual (Page 18)

5. To save any changes to the network settings, select the Save button at the bottom, right of the
OCP.
Any client machine on the LAN can communicate with the Interface Manager card either through
the GUI or through a command line interface (CLI). At a higher level, multiple libraries, each
containing an Interface Manager card, can be connected to a single management station. Each
Interface Manager card can communicate with only one management station, but the management
station can communicate with multiple Interface Manager cards.
After being configured, the Interface Manager card is used to configure the interface controllers
based on knowledge of the library and SAN. As robotics commands are received from the interface
controllers, the Interface Manager card acts as a switch to relay these commands to the library
robotics controller. The Interface Manager card contains on-board Flash memory to provide a
persistent history of the library and storage network health.
Interface controller
The interface controller is an HP proprietary card that provides FC connectivity for LTO2 and LTO3
tape drives and robotics in the SAN. Commands, data, and status information are transferred to
and from this controller, from hosts, the robot, and the LTO2 and LTO3 tape drives. One interface
controller can manage up to four LTO2 or LTO3 tape drives.
LTO4 and later tape drives do not connect to an interface controller; instead, they connect directly
to the SAN. Libraries that contain only LTO4 or later tape drives still need one interface controller
which is used to direct commands to the robot. The interface controller is available in two speeds:
2 Gbps and 4 Gbps.
Ports on the e2400-FC 2Gb interface controller
Figure 13 Ports on the e2400-FC 2Gb interface controller
2. FC ports to hosts 1. FC ports to LTO2 and LTO3 tape drives
4. Serial port 3. Ethernet port (connection to Interface Manager card)
Ports on the e2400-FC 4Gb interface controller
Figure 14 Ports on the e2400-FC 4Gb interface controller
2. FC ports to hosts 1. FC ports to LTO2 and LTO3 tape drives
4. Serial port 3. Ethernet port (connection to Interface Manager card)
18 Library overview