• 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. Ensure 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 website for the latest drivers and patches.
NOTE:
Many backup applications use their own drivers. Before installing a driver, make sure that 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.
For a list of compatible SAS host bus adapters and application software, check with your SAS host
adapter manufacturer, backup application vendor, or the compatibility matrix at
• Verify that your HBA is supported by the host computer and qualified with the library. For current HBA
compatibility information, see the compatibility matrix at
.
• Ensure that you are using a compatible, high-quality cable. See the product QuickSpecs for a list of
supported cables.
Detection problems after installing a parallel SCSI drive
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 can only be
installed in either the upper or lower two half-height drive bays.
Problems encountered after installation are often caused by improper parallel SCSI bus configuration,
application software configuration errors, or an incorrectly configured operating system. If the application
software or operating system does not communicate with the library or drive after installation, determine the
extent of the detection problem:
• Does the application software detect the tape drive?
• Does the application software detect the library?
• Does the operating system detect the tape drive?
Detection problems after installing a parallel SCSI drive
147
