Chapter 1
24
Scalar AIT 440/480
S
Fast/Wide SCSI.
If AIT-1 tape drives are installed in the library,
the tape drives must be all Fast/Wide SCSI-2.
S
Wide Ultra SCSI.
If AIT-2 tape drives are installed in the library,
the tape drives may be HVD or LVD Wide Ultra SCSI.
S
Number of buses.
You can connect up to five SCSI buses to a wide
SCSI library.
S
Number of tape drives on a bus.
The tape drives and the library
can all be connected to the same SCSI bus.
S
SCSI cable length.
The total length of all internal and external
cables on the SCSI bus should not exceed 25.0 meters (82 feet) if
HVD and 12 meters (41 feet) if LVD. If an LVD bus is used, and a
single-ended device is attached, the entire bus switches to
single-ended mode. In this instance, the total length of all internal
and external cables on the SCSI bus should not exceed 1.5 meters
(4.9 feet) if five or more devices are attached, and 3 meters (9.8 feet)
if four or less devices are attached.
S
SCSI termination (internal or external).
All termination must be
external. Do not use internal terminators to terminate the library or
the tape drives.
S
SCSI termination.
Use a 68-pin HVD or LVD terminator to
terminate the library and the drives.
See
Appendix A
for specifications for the SCSI cables and
terminators, including instructions for determining the cable lengths
used for each SCSI bus.
Summary of Contents for Scalar AIT 440
Page 1: ...INSTALLATION AND OPERATING GUIDE SCALAR AIT 440 480...
Page 2: ...Scalar AIT 440 480 Libraries Installation and Operation...
Page 7: ...vi Scalar AIT 440 480 Notes...
Page 11: ...x Scalar AIT 440 480 Notes...
Page 25: ...xxiv Scalar AIT 440 480 Notes...
Page 101: ...Operating the Tape Drives Installation and Operation 77 Notes...
Page 135: ...Chapter 8 112 Scalar AIT 440 480 Notes...
Page 153: ...Chapter 9 130 Scalar AIT 440 480 Notes...
Page 179: ...Chapter 11 156 Scalar AIT 440 480 Notes...
Page 185: ...Appendix A 162 Scalar AIT 440 480 Notes...