ACL 4/52 Software Interface Guide
Document 6211225-03
Version 3.0
Cleaning Cartridges
C-7
Monitoring Usage
The library maintains a usage history for each cleaning cartridge currently
contained within the library. The usage history consists of a count of the
number of times that the cleaning cartridge was used to clean a drive.
When a cleaning cartridge has been successfully identified and imported into
the library, the usage history for that cleaning cartridge is initialized so that
the use count is zero (0).
Each time a cleaning cartridge is removed from a drive by the robotics, the
“use count” for that cleaning cartridge is incremented by one count. When the
“use count” reaches the maximum allowable number of 20, (in Fully
Automatic Cleaning Mode) the cleaning cartridge is moved to the loadport.
Note
A library updates “use counts” for cleaning cartridges that are used in host
initiated cleaning operations (regardless of the cleaning mode) as well as
those used in library initiated cleaning operations.
A cleaning cartridge that appears defective will have its number of uses set to
the maximum allowable number to prevent further use. The library will then
move that cartridge to the loadport.
When a cleaning cartridge has been exported from the library, all record of
that cleaning cartridge is deleted and all monitoring of that cleaning cartridge
ceases.
Element Status Information
The presence of cleaning cartridges results in the reporting of additional
status information in response to host initiated Read Element Status
commands. This additional information is only present in Fully Automatic
Cleaning Mode and will be suppressed in Host Initiated Cleaning Mode. The
additional information may consist of the Except bit being set and the
Additional Sense Code and Additional Sense Code Qualifier values being
filled-in as well as possible changes to the Access bit (described below).
A storage element that contains a cleaning cartridge that is not used up has the
Access bit set to 1, the Except bit set to 1 and the status set to Cleaning
Cartridge Installed (ASC=30 ASCQ=03).
A storage element that contains a cleaning cartridge that is used up has the
Access bit set to 1, the Except bit set to 1 and the status set to Operator
Medium Removal Request (ASC=5A ASCQ=01).
A storage element that is empty but is the home location for a cleaning
cartridge that is currently being used in a cleaning operation has the Access
bit set to 0, the Except bit set to 1 and the status set to Cleaning Cartridge
Installed (ASC=30 ASCQ=03).