Quantum ACL 4/52, Дополнительное руководство

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ACL 4/52 Software Interface Guide
Document 6211225-03
Version 3.0
2-8 Events
Operational Sequences
A description of operational sequences follow. They are listed in order
of precedence. For example, if the door is opened and the STOP switch
was pressed, the door open sequence will override the system stop
sequence until it is complete.
Power-On Sequence
The following actions occur when the library is powered-on:
•
The local controller for the library resets and initializes all
hardware.
•
The control panel is blank.
•
During this time, the library responds to the Inquiry, Request
Sense, Log Sense, and Mode Sense commands. Check Condition is
set for all other commands and the “Logical Unit is Not Ready”
condition (SK=2 ASC=04 ASCQ=00) is set in the sense data.
•
When the power-on initialization is complete, the library generates
a “Power On/Reset Occurred” event (SK=6 ASC=29 ASCQ=00).
•
The library sets the tape drive SCSI IDs and then resets the tape
drives
The system then moves into one of the following sequences depending
on the condition of the system.
Door Opened Sequence
Before entering the library, take the unit off-line. After the off-line
sequence is complete, it is recommended that you press the STOP
switch before opening the doors. When the door is opened, the library
is no longer operational (as viewed by the host). The following actions
occur when the door is opened:
•
The control panel indicates that the door is opened.
•
The library generates a “Door Was Opened” event (SK=6 ASC=80
ASCQ=00).
•
If the door is opened without performing the off-line sequence, the
system halts all library motion. Any motion command currently in
progress is aborted and Check Condition is returned to the host.
The “Door is Opened” condition (SK=2 ASC=80 ASCQ=00) is set
in the sense data.