Fibre Channel Connection Problems - HP StorageWorks MSL2024 User's And Service Manual

• Refer to the documentation included with your backup application for instructions on how to
verify proper installation. Some backup software packages require an additional module to
communicate with the robotics.
• If the Library is detected by the operating system, but is listed as an unknown or generic device:
• Make sure that the proper device driver, if applicable, is installed for the device. Check your
software provider's website for the latest drivers and patches.
NOTE:
Many backup applications use their own drivers. Before installing a driver, make sure it is not
in conflict with the application software.
If you continue to have problems with a SAS Library, check the following:
• Ensure that the device is compatible with the SAS host adapter and backup application you plan
to use.
• Verify that your HBA is supported by the host computer and qualified with the Library.
• Ensure you are using a compatible, high-quality cable. See the product QuickSpecs for a list of
supported cables.

Fibre Channel connection problems

The MSL4048 Library will not operate with a full-height tape drive installed in the middle two half-height
drive bays. Verify that the full-height tape drive is installed in a supported position. A full-height drive
may only be installed in either the upper or lower two half-height drive bays.
Use the Status screen to check the link connection for your tape drive.
If the screen shows Logged Out:
• Check that the Fibre speed is set to Automatic (on the RMI) or Auto Detect (on the OCP), or that
the correct fibre speed is selected. If you are unsure of the speed of the HBA or switch that the
Library is connected to, try Automatic (on the RMI) or Auto Detect (on the OCP).
• Check that the correct port type, fabric or loop, is selected. Loop requires additional configuration.
If you are unsure of the correct port type, try Automatic (on the RMI) or Auto Detect (on the OCP).
If the screen shows No Link, the Speed Status is – and the Link LED on the back of the drive is off:
• The speed is probably set incorrectly. Try setting the speed to Automatic (on the RMI interface) or
Auto Detect (on the OCP).
• If there are still issues, change the port type to Auto Detect.
If the screen shows No Light:
• The cable is not plugged in correctly. Check that it is connected correctly to Port A of the tape
drive.
• The cable is damaged. FC cables are delicate. If the cable has been bent or twisted sharply, it
may be broken and must be replaced.
If the screen shows ALPA Conflict:
• There might be a conflict with the ALPA address on Loop ports. Select Soft for the Loop mode to
allow the system to select an available address each time the tape drive connects to the FC fabric.
If your server configuration does not support changing addresses, try using the Hard Auto-Select
option for the Loop mode. This allows the system to select an available address when it first con-
nects, and then retain that address for future connections.
158 Troubleshooting