Exabyte 440, 480 manual Narrow or wide Scsi, Fast Scsi, Scsi cabling

SCSI Basics

Narrow or wide SCSI

The narrow library supports Mammoth and Eliant 820 tapes drives. The wide library supports Mammoth tape drives only.

Fast SCSI

The library supports fast SCSI, which does not require any special cabling or configuration. However, proper cable lengths, stub length, and termination are more important on a fast SCSI bus than on a regular SCSI bus.

SCSI cabling

When connecting the library and other devices on the SCSI bus, follow these guidelines for SCSI cabling:

✔Single-ended configurations. If you are using Mammoth tape drives and your host is able to accommodate a data transfer rate of more than 5.0 MB per second, make sure that the total length of all internal and external cables does not exceed

3.0 meters (9.8 feet). If your host limits data transfers to 5.0 MB per second or less, or if you are using the Eliant 820 tape drives, make sure that the total length of all internal and external cables does not exceed 6.0 meters (19.7 feet).

✔HVD/LVD SCSI cable lengths. Make sure the total length of all internal and external cables on the SCSI bus does not exceed 12 meters (39 feet). If you have a point-to-point connection, make sure the total cable length does not exceed 25 meters (82 feet).

Installation and Operation 155