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ACL 4/52 Software Interface Guide
Document 6211225-03
Version 3.0
C-6
Cleaning Cartridges
Identification
Cleaning cartridges are identified with a uniquely identifiable bar code. A bar
code for a cleaning cartridge begins with the prefix “CLN”, for example
“CLN001.”
Storage and Tracking
A cleaning cartridge is tracked by the library from the time that it is loaded
into the library until the time that it is unloaded from the library. Once a
cleaning cartridge with a particular bar code is unloaded from the library, the
library no longer retains information concerning that cleaning cartridge (bar
code). If a cleaning cartridge with the same bar code is subsequently imported
into the library, it will be considered a different cleaning cartridge for all
tracking and monitoring purposes.
Each cleaning cartridge must have a unique bar code. If a cleaning cartridge
with a bar code is identical to one currently stored in the library, it is loaded
and the library moves the last recognized cleaning cartridge to the loadport.
As the library determines that drives require cleaning and cleaning cartridges
are used to clean the drives, the library tracks the movement of the cleaning
cartridges.
When a cleaning cartridge has been “used up,” it is moved to the loadport.
The library tracks cleaning cartridges that are moved by a host initiated Move
Medium command and by a movement command initiated by the diagnostic
software.
The library attempts to adjust for cleaning cartridges that are manually moved
within the library while the library is off-line. When an inventory is performed
(after power-up) or transitioned from off-line to on-line, all cartridges are
scanned and identified. For each cleaning cartridge, it first checks if previous
records show that a cleaning cartridge with the same bar code was in the
(current) same location. If so, the library assumes that it is the same cleaning
cartridge and retains all cleaning cartridge information.
If previous records do not show a cleaning cartridge with the same bar code at
that location, the library checks if a cleaning cartridge with the same bar code
label was previously located at another location (and is not currently at that
other location). If so, the library assumes that it is the same cleaning cartridge
that was manually moved and retains all cleaning cartridge information. If the
library cannot locate a previous record for the cleaning cartridge, it assumes
the cleaning cartridge is new and creates a new record for it.