HP Command View for Tape Libraries Software - Manual (Page 83)

Figure 11 Drive Properties window Usage tab
Information provided on the Usage page is explained in Table 23 (page 83) .
Table 23 Information available from the Drive Properties window Usage tab
Description Item
Usage Statistics
Total power on time of the drive since it was
manufactured. Power On Time
Total tape pulled through the drive expressed in terms
of the equivalent number of full volume writes or reads. Tape Pulled
Total number of tape loads for the drive since it was
new. Load/unload Cycles
A comparison of the time the tape was in the drive with
the time since the time it was loaded and the following Percent Tape Loaded
tape load expressed as a percentage. For example, if
the time between the two tape loads was 4 hours and
this tape was in the drive for the first hour of that time
then the tape loaded percent will be 25%. Use this for
measuring utilization of the drive from the application
standpoint.
Duty cycle of the drive since the last tape load. This is
a comparison of the time the drive has been active with Duty Cycle
the time since the last tape load expressed as a
percentage. For example, if the last tape load was 4
hours ago and the drive has been active for 3 hours
since then, the duty cycle will be 75%. Use this for
measuring utilization from the hardware standpoint.
Number of drive power cycles since the drive was
manufactured. Power Cycles
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