HP Command View for Tape Libraries Software - Manual (Page 75)

•
Low Utilization – High performance: drives that have high performance but low utilization
(less than 50%)
•
Low Utilization – Low Performance: drives that are neither utilized to their potential nor able
to perform to their maximum stipulated capacity
All drives which have utilization and performance values will be plotted as data points and listed
as the legend to the right of the graph. Hovering over each data point brings up a tool tip showing
how each drive performed in terms of utilization and performance in the give time interval; the
tool tip lists:
•
Drive serial Number – the serial number of the drive. This is a static value and will change if
a drive has been replaced. Use this serial number when contacting HP support.
•
Drive Type – the drive type including generation and interface type.
•
Performance (%) – the performance of the drive over the time period calculated as a percentage
value.
•
Host Transfer Rate – transfer rate of the host averaged over the data transferred to/from the
tape since the last load.
•
Max Transfer Rate – the maximum specified native transfer rate of the drive.
•
Utilization (%) – utilization of the drive over the time period calculate as a percentage value.
From the graph you can do several things:
•
Change the sample time – click the Sample Time link; see “Choosing a sample time” (page 66)
for details on changing the sample time. You can also get there from Actions
→Change sample
time or Actions
→Change library and sample time.
•
Return to the Performance Advisor selection page by clicking the Back to selection page link.
•
Change the library by selecting a new library from the Library name drop down list, by
Actions
→Change library, or by Actions→Change library and sample time.
NOTE: The performance advisor graph can be viewed only for the libraries having a TapeAssure
Advanced license. If there are no libraries with the Advanced License, the following message is
displayed:
Insufficient data available to plot the graph or Command View TL
TapeAssure Advanced license is not available.
Please install the Command View TL TapeAssure Advanced license for the
appropriate tape libraries. To install a license, click 'Licensing' tab
on the left pane and add the Command View TL TapeAssure Advanced license.
NOTE: For a chosen library in given time interval, two or more drives might have exactly same
utilization and performance values. In these cases, the data points will overlap. Click these points
to launch the top-most drive detailed graph, or click the library in the legend to launch the individual
drive detailed graph.
Viewing the Collection Status
The TapeAssure Collection Status displays the libraries that are registered with the Management
Station listed by library type. It also lists those libraries managed by other management stations.
To view the Collection Status:
1.
In the Launcher window, click the TapeAssure tab.
2. In the Navigation panel, select Collection Status.
Using TapeAssure 75