Chapter 7. Troubleshooting
Library Operation Problems
Library hangs, will not boot, or does not communicate with host
1.Check that the library power cord is plugged into an active
Newer power supplies switch voltages automatically, but older power supplies have a switch that must be set to the current power source output or the power supply may be damaged.
2.SCSI considerations:
•Ensure that all attached SCSI devices are using unique SCSI IDs.
•Ensure that all SCSI cables are attached and secure.
•Ensure that proper cables are used (proper termination of cables, proper pinout of cables). Many
•Ensure that the SCSI bus is terminated properly. Make sure that the host controller card used automatic/manual termination, and that it is terminated correctly. Terminators used on the library should be labeled Active for
•Ensure that all devices attached to bus have the same SCSI configuration (either
•Ensure that the SCSI cabling is of proper length for that number of attached devices and SCSI configuration
3.Make sure that the library firmware is not corrupted. This can happen if power is lost or the library is reset while upgrading the firmware. To solve this, use the forced firmware reload procedure as described in Forcing a Firmware Reload on page 70.
Library boots, but will not come to Unit Ready state
1.Check all power and SCSI connections as described in the previous problem description.
2.If you are using an Adaptec 2944 SCSI controller card, download the latest Adaptec drivers from the Adaptec Web site.
Install them on your host system, then reboot the host and restart the library.
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