HP StoreEver MSL2024, MSL4048, MSL8048, and MSL8096 Tape Libraries User and Service Guide (AK378-96059, December 2012)

◦ Verify that your HBA is supported by the host computer and qualified with the library.
For current HBA compatibility information, see the EBS compatibility matrix at http://
www.hp.com/go/ebs.
◦ Verify that your HBA has the latest firmware.
• If the application software or operating system detects the tape drive, but not the library:
◦ Verify that multiple LUN support is enabled on the HBA. The device uses two Logical Unit
Numbers (LUNs) to control the tape drive (LUN 0) and robotic (LUN 1). The device requires
an HBA with multiple LUN support and multiple LUN support must be enabled on the host
computer. When multiple LUN support is not enabled, the host computer can see the tape
drive, but not the library.
NOTE: Many RAID or array controllers do not provide multiple LUN support.
• If the application software or operating system does not detect any devices on the HBA:
Verify that the SAS host adapter is installed correctly. Refer to the manual that came with
your host adapter for installation and troubleshooting instructions. Pay particular attention
◦
to any steps describing configuration settings. Make sure that the host adapter is properly
seated in the motherboard slot and the operating system correctly detects the host adapter.
◦ Verify that the proper device driver is installed for the SAS host adapter.
• If the library is detected by the operating system, but not by the application software:
◦ 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.
Fibre Channel connection problems 147