Exabyte 480, 440 manual Problems with library installation

Chapter 8

Problems with library installation

If your library and application software are not communicating after installation, check the following:

✔Single-ended, low-voltage differential (LVD), and high-voltage differential (HVD) devices. Make sure all devices on the bus are all singled-ended or LVD or all HVD. You can connect single-ended and LVD devices to the same bus. However, mixing the two types of devices results in all devices on the bus operating as single-ended devices. These devices include the controller cards, cables, and terminators.

✔Narrow SCSI and wide SCSI. Make sure all devices within the library are either narrow SCSI or wide SCSI. Do not mix narrow and wide SCSI devices within the library.

✔SCSI cable lengths. Make sure the internal and external SCSI cabling does not exceed maximum lengths (see page 149).

✔Termination. Make sure your bus is properly terminated as described in Appendix B. If another SCSI device previously terminated the SCSI bus and is no longer at the physical end of the bus, be sure to remove the terminators from that device.

✔SCSI bus connections. Make sure that all SCSI cables and terminators are securely connected to the appropriate SCSI connectors on the back of the library. See page 36 for more information.

✔SCSI IDs. Make sure that the SCSI IDs you selected for the tape drives and library are not the same as IDs used by any other SCSI device on that bus, including the SCSI adapter card. The library does not check for duplicate IDs. See page 52 for instructions.

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