![background image](http://html1.mh-extra.com/html/quantum/acl-4-52/acl-4-52_supplementary-manual_3560300029.webp)
ACL 4/52 Software Interface Guide
Document 6211225-03
Version 3.0
Events
2-11
•
Results of the inventory are returned with the Read Element Status
Command.
Off-line Sequence
The
STANDBY
switch allows the library to be taken off-line. The
off-line sequence can only occur when the door is shut, the system is
not stopped and the
STANDBY
button is pressed. When a library is
placed off-line, the following sequence is performed:
•
The local controller for the library completes any currently
processing command. The
STANDBY
LED will flash during this
time.
•
When all commands are complete, the control panel changes to
“System Off-line” and the
STANDBY
LED will become solid to
indicate that the unit is off-line.
•
The library generates a “Unit Standby Button Was Pressed” event
(SK=6 ASC=80 ASCQ=09).
•
When the library is off-line, it responds to the Inquiry, Request
Sense, Log Sense, and Mode Sense commands. Check Condition is
set for all other commands issued during this time, and the “Unit
Is Turned Off-line” (SK=2 ASC=80 ASCQ=09) condition is set in
the sense data.
•
Field Service Engineer (FSE) level diagnostic commands can be
executed via the diagnostic port or control panel.
The library remains off-line until one of the other operational
sequences occur.
Automatic Drive Cleaning Sequence
The default state of automatic drive cleaning is “disabled.” For a
detailed discussion of the automatic drive cleaning features, see
Appendix C.