ACL 4/52 Software Interface Guide
Document 6211225-03
Version 3.0
vi
Table of Contents
Control Panel Menu Mode ............................................................................... 2-13
Error Recovery Procedures ..................................................................................... 2-14
Internal Error Recovery .................................................................................... 2-14
Operator Recovery............................................................................................ 2-14
System Performance ............................................................................................... 2-15
Key Performance Items .................................................................................... 2-15
Typical Application Enhancements.................................................................. 2-15
System Diagnostic Support ..................................................................................... 2-16
Host Interface Diagnostic Error Codes............................................................. 2-16
Off-line Diagnostics via the “DIAG” Port ....................................................... 2-16
Software Interfaces
Chapter Overview ..................................................................................................... 3-3
SCSI Interface ........................................................................................................... 3-3
Reset Sequence ................................................................................................... 3-4
Supported Messages ........................................................................................... 3-4
Abort ............................................................................................................ 3-5
Bus Device Reset ......................................................................................... 3-5
Command Complete .................................................................................... 3-5
Disconnect (from Target to Initiator)........................................................... 3-5
Identify (Initiator to Target)......................................................................... 3-6
Identify (Target to Initiator)......................................................................... 3-6
Save Data Pointer......................................................................................... 3-6
Supported Operational Commands..................................................................... 3-7
Initialize Element Status (07h)..................................................................... 3-9
Initialize Element Status with Range (E7h)............................................... 3-10
Inquiry (12h) .............................................................................................. 3-12
Log Sense Command (4Dh)....................................................................... 3-15
Mode Select Command (15h) .................................................................... 3-19
Mode Sense (1Ah) ..................................................................................... 3-25
Move Medium (A5h) ................................................................................. 3-35
Position To Element (2Bh) ........................................................................ 3-37
Prevent/Allow Medium Removal (1Eh) .................................................... 3-38
Read Element Status (B8h) ........................................................................ 3-40
Ready Inport (DEh).................................................................................... 3-53
Release (17h) ............................................................................................. 3-54
Reserve (16h) ............................................................................................. 3-55
Request Sense (03h)................................................................................... 3-58
Request Volume Element Address (B5h) .................................................. 3-61
Rezero Unit (01h) ...................................................................................... 3-75
Send Diagnostic (1Dh)............................................................................... 3-76
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