HP MSL4048 HP StorageWorks MSL2024, MSL4048 Tape Library Fibre Channel Referen - Page 9

2 Installation and configuration Installing your tape library Your tape library is not supplied with cables to connect to the FC fabric; cables must be purchased separately. Follow the instructions on the Installation poster to install your tape library. This Reference Guide is specific to FC tape drives. Cabling the library There are two FC ports located on each FC tape drive. NOTE: HP recommends that you cable Port A only and that you configure Port B for Auto Detect on Fibre Speed and Port Type. 1. Turn off and remove the power cables from the tape library, server and all attached devices. 2. Remove the FC port caps if necessary. Attach one end of the Fibre Channel cable to Port A on the tape drive. Attach the other end of the FC cable to a switch or HBA. 3. Attach the power cable to the power connector on the back panel of the library. 4. Power on the tape library using the power button located at the front of the library. Check the LCD screen to make sure the library is receiving power. 5. Attach the power cables and power on the server and all attached devices. FC configuration settings There are no physical configuration switches, but there are various settings that you must configure for each port using the Operator Control Panel (OCP) or the Remote Management Interface (RMI). To configure your tape library for FC connection, you need to know: • Fibre speed: 1 Gb/s, 2 Gb/s, or Auto Detect. IMPORTANT: If you set the wrong Fibre speed, the connection will not work. • Port type: Fabric (N) for connection to a small SAN via a fibre switch or Loop (NL) for connection to an Arbitrated Loop, such as a direct connection to an HBA or a fibre hub. If you have a Loop port type, there are additional configuration settings. • Loop mode: Select Soft to automatically select an address each time the tape library connects to the Fibre Channel. Select Hard if you want to specify an exact address; you must also enter the physical address, known as the ALPA (Arbitrated Loop Port Address). Some servers, such as those running HP-UX, may lose communication if addresses change; they require a hard address. If you are uncertain which ALPAs are available, you can select Hard Auto Select. This puts the mode into Soft for the first connection, but the address obtained is then remembered and used as a hard address for all subsequent connections. MSL2024, MSL4048 Tape Library Fibre Channel reference guide 7