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STA User Interface Guide, v1.0.2
E28380-03
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Using STA to Answer Tape Environment Questions : Capacity and Resource Management Questions : ▼ Report Resources With the Highest Utilization

▼

Report Resources With the Highest Utilization

This procedure addresses the question, “Which types of drives or media are used the most in my tape system?”

The drives and media that make up the majority of the system are not necessarily subject to the most use. Utilization is affected by your client configuration and the types of drives and media requested by these clients. This procedure addresses some of the most common ways of defining “most used”.

The following methods are described:

•
“Report Drive Utilization”
•
“Report Media Utilization”

Referenced Tasks

•
“Apply a Template”
•
“Use the Filter Data Dialog Box to Change a Table Filter”
•
“Sort by Multiple Columns”
•
“Export Table Data to a Spreadsheet”

▼

Report Drive Utilization
1.
In the Navigation Bar, select Drives > Overview.

2.
In the Templates menu, apply the “STA-Drive-Utilization” template.

This template displays utilization statistics for all drive types.

3.
Use the following steps to remove drives for which STA has no utilization data.
a.
Click Filter Data.
b.
In the dialog box, locate the attribute that represents the utilization measure of interest to you. In the field menu, select “Greater than” and enter “0”.

Following are some suggested attributes for measuring drive utilization.

•
To identify drives with the highest utilization rates, use “% Utilization (30 Days)”.
•
To identify drives that have recorded the most new data, use “MB Write (30 Days)”, or “MB Received (30 Days)”.
•
To identify drives that have passed the most data at the drive head, use “MB R/W (30 Days)”.
•
For drives that have been in the library for their entire periods of use, the drive “lifetime” attributes are also useful measures of activity — for example, “Drive Lifetime Loads” or “Drive Lifetime Hours in Motion”.
c.
Click Apply.

4.
Perform a multiple-column sort to group the records by drive type and then utilization.
a.
Select View > Sort > Advanced.
b.
Complete the Advanced Sort dialog box as follows:
•
In the “Sort By” field, select “Drive Type”.
•
In the “Then By” field, select the attribute that you used in Step b above, and “Descending”.
c.
Click OK.

The table is sorted according to your criteria.

5.
To summarize the data by drive type, you must use an external spreadsheet application. Use the following steps to export the data displayed in the table to an HTML-based Excel-compatible file.
a.
Click the Export icon in the Table Toolbar.

b.
Save the file to a location on your local computer.
6.
Use a compatible spreadsheet application to open the file and summarize the data.

▼

Report Media Utilization
1.
In the Navigation Bar, select Media > Overview.

2.
In the Templates menu, apply the “STA‑Media‑Utilization” template.

This template displays utilization statistics for all media types.

3.
Use the following steps to remove media for which STA has no utilization data.
a.
Click Filter Data.
b.
In the dialog box, locate the attribute that represents the utilization measure of interest to you. In the field menu, select “Greater than” and enter “0”.

Following are some suggested attributes for measuring media utilization:

•
To identify media with the greatest amount of movement, use “Time spent reading or writing”.
•
To identify media below a specific threshold of available space, use “Media MB Avail Pre/Post”
•
To identify media with the greatest number of mounts and dismounts, use “Media Dismounts (30 days)”.
•
To identify media with the greatest amount of data read or written, use “MB R/W (30 days)”.
c.
Click Apply.

4.
Perform a multiple-column sort to group the records by media type and then utilization.
a.
Select View > Sort > Advanced.
b.
Complete the Advanced Sort dialog box as follows:
•
In the “Sort By” field, select “Media Type”.
•
In the “Then By” field, select the attribute that you used in Step b above, and “Descending”.
c.
Click OK.

The table is sorted according to your criteria.

5.
To summarize the data by media type, you must use an external spreadsheet application. Use the following steps to export the data displayed in the table to an HTML-based Excel-compatible file.
a.
Click the Export icon in the Table Toolbar.

b.
Save the file to a location on your local computer.
6.
Use a compatible spreadsheet application to open the file and summarize the data.
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