The American National Standard for information
systems — Small Computer System Interface-2 (SCSI-2) specification
defines mechanical, electrical, and functional requirements for connecting
small computers to a wide variety of intelligent devices, such as
rigid disks, flexible disks, magnetic tape devices, printers, optical
disks, and scanners. It specifies standard electrical bus signals,
timing, and protocol, as well as a standard packet interface for sending
commands to devices on the SCSI bus.
Certain OpenVMS systems employ the SCSI bus as
an I/O bus. For these systems, HP offers SCSI-compliant disk and tape
drives. The operating system also allows devices including disk drives,
tape drives, and scanners, supplied by sources other than HP, to be
connected to the SCSI bus of such a system.
SCSI has been widely adopted by manufacturers
for a variety of peripheral devices; however, because the ANSI SCSI
standard is broad in scope, not all devices that implement its specifications
can fully interrelate on the bus. HP fully supports SCSI-compliant
equipment sold or supplied by HP. Proper operation of products not
sold or supplied by HP cannot be assured.
For more information, see the following documents:
American National Standard
for Information Systems — Small Computer System Interface-2
(SCSI-2) specification (X3T9.2/86-109)
Copies
of this document can be purchased from: Global Engineering Documents,
2805 McGaw, Irvine, California 92714, United States; or (800) 854-7179
or (714) 261-1455. See document X3.131-198X.
American National Standard
for Information Systems — Small Computer System Interface specification
(X3.131-1986)
Copies of this document can
be obtained from: American National Standards Institute, Inc., 1430
Broadway, New York, New York, 10018. This document is now known as
the SCSI-1 standard.
HP publishes two additional documents to help
third-party vendors prepare SCSI peripherals and peripheral software
for use with DIGITAL workstations.
The Small Computer
System Interface: An Overview (EK-SCSISOV-001) provides
a general description of the DIGITAL SCSI third-party support program.
The Small Computer
System Interface: A Developer's Guide (EK-SCSIS-SP-001)
presents the details of implementation of SCSI within DIGITAL operating
systems.
