Tape capacity tab – HP Command View for Tape Libraries Software User Manual

Page 101

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server to which the drive is attached. Such hostname entries are highlighted with an asterisk
(*).

Cartridge Type—The vendor ID and data format supported by the cartridge.

Loads/Unloads (In Sample Time)—The number of times this tape has been loaded into a drive
in the specified time period.

Data Written (In Sample Time) —The amount of data written to the tape during the selected
time window.

Data Read (In Sample Time)—The amount of data read from the tape during the selected time
window.

Capacity Used (At last sample)—Amount of the native capacity that contains data.

Last Sample Time—The time at which the last sample was taken.

To view the media performance and utilization history of a particular tape, click the linked serial
number. See

“Viewing the tape utilization and performance history” (page 101)

.

When a management station is reconnected to the network after more than 24 hours offline, the
utilization panel display can be inaccurate. The TapeAssure data queued up on active drives and
libraries arrives in bulk. To display a more accurate utilization, select Actions

→Choose Sample

Time, and choose the next longest time frame (7 days or more). See

“Choosing a sample time”

(page 66)

for details.

For information on searching for a specific tape, see

“Searching for a specific tape” (page 107)

.

Viewing the tape utilization and performance history

The tape utilization and performance history panel displays the media format, drive type, library
serial number, and sample time. The default sample time is one month. To view the tape utilization
and performance history of a tape, use one of the following procedures:
1.

Navigate to the Tape Utilization tab.

2.

Click the linked serial number. The Tape Utilization and Performance History page opens and
contains three tabs: Tape Capacity, Tape Unloads, and Tape Performance.

Or:
1.

Navigate to the Drive Utilization or the Drive Performance tab.

2.

Click the linked serial number. The Drive Performance and Utilization History page opens and
contains three tabs: Drive Performance, Drive Utilization, and Utilization Analysis.

3.

Click the linked tape serial number. The Tape Utilization and Performance History page opens
and contains three tabs: Tape Capacity, Tape Unloads, and Tape Performance.

If the tape has not been utilized over the selected time period, no data is shown in the graphical
view.

Tape Capacity tab

The Tape Capacity tab displays a bar graph showing how much tape is being used (the percentage
full) by a particular drive. The X-axis is the drive serial number; each serial number is a link to the
Drive History page with the Drive Performance tab selected. The Y-axis is the number of uploads.

Using TapeAssure

101

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