Theory Of Operation - Quantum ACL 4/52 Supplementary Manual

Theory of Operation

Chapter Overview.................................................................................................. 2-3
Library Description ................................................................................................2-3
SCSI Implementation Philosophy ........................................................................2-4
Medium Changer Elements...................................................................................2-4
Medium Transport Element............................................................................2-5
Storage Elements .............................................................................................2-5
Import/Export (Load Port) Elements ...........................................................2-5
Data Transfer Elements ..................................................................................2-5
Events........................................................................................................................2-6
Power Cycle ......................................................................................................2-7
Library Unit Off-line/Standby .......................................................................2-7
Library Unit On-line Initialization Failure ...................................................2-7
Library Unit Door Opened .............................................................................2-7
Library Unit Stopped .......................................................................................2-7
Accessed Load Port ..........................................................................................2-7
Maximum Temperature Exceeded.................................................................2-7
Operational Sequences ....................................................................................2-8
Power-On Sequence...................................................................................2-8
Door Opened Sequence.............................................................................2-8
System Stopped Sequence ........................................................................2-9
On-line Initialization Sequence................................................................2-9
Library Unit Inventory Sequence ..........................................................2-10
Off-line Sequence ....................................................................................2-11
Automatic Drive Cleaning Sequence ....................................................2-11
Configuration Procedures....................................................................................2-12
"DIAG" Interface............................................................................................2-12
ACL 4/52 Software Interface Guide
Document 6211225-03
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Version 3.0
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