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STA User Interface Guide, v1.0.2
E28380-03
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Using STA to Answer Tape Environment Questions : Drive and Media Health Questions : ▼ Report Trends in Critical Errors

▼

Report Trends in Critical Errors

This procedure addresses the questions, “What critical errors were reported to STA last month? Is the total number trending up, down, or staying stable?”

STA reports instances of a wide variety of error types. This procedure provides instructions for exporting the error data to a spreadsheet application, which can then be used to summarize error trends over time.

The following methods are described:

•
“Using the Notifications – Overview Screen”
•
“Using the Libraries – Exchanges Screen”

Referenced Tasks

•
“Use the Filter Data Dialog Box to Change a Table Filter”
•
“Move a Column”
•
“Tooltips”
•
“Change the Width of a Column”
•
“Export Table Data to a Spreadsheet”
•
“Apply a Template”
•
“Collapse and Restore the Graphics Area”
•
“Add a Graph Pane”
•
“Change the Graphed Attribute”

▼

Using the Notifications – Overview Screen
1.
In the Navigation Bar, select Notifications > Overview.

2.
Use the following steps to narrow down the data to traps sent within the last month.
a.
Click Filter Data.
b.
Complete the Filter Data dialog box as follows:
•
In the “Filter Matching” field, select “Match ALL entered criteria”.
•
In the “Date SNMP trap archived” field select “Is After” and enter a date one month ago.
•
In the “Severity” field, select “error”.
c.
Click Apply.

The table is updated according to your selection criteria. The “Severity” and “Text” columns are adjacent, allowing you to review them together. You may need to scroll to the right to see the columns.

3.
You can use any of the following methods to see the full error message text.
•
Move the mouse over the bottom border of the cell; the full text is displayed in a tooltip.

•
Widen the “Text” column.
•
Export the table to a file. Then use a compatible spreadsheet application to open the file and format the error message text so it wraps within the table column.

▼

Using the Libraries – Exchanges Screen

Drive and media errors are reported as a result of exchanges. Therefore, it is more efficient to look for errors on the Libraries – Exchanges screen, where drive and media data is consolidated, rather than on the Drives or Media screens.

1.
In the Navigation Bar, select Libraries > Exchanges.

2.
In the Templates menu, apply the “STA‑Exchanges‑Errors‑All” template (alternatively, apply the “STA‑Exchanges‑Alerts‑Errors” template for a smaller subset).

This template includes several columns that indicate different types of errors. The exchanges are sorted in reverse chronological order, — most recent exchanges first — allowing you to see at a glance which error types have predominated at your site over the last month.

3.
If there are enough errors to indicate possible trends, use the following steps to add graphs of interest to the Graph Area.

Attributes that may correlate to errors include “Write Efficiency”, “Read Margin”, and “R/W Rate MB/sec”.

a.
Click the Restore Pane icon at the top of the screen to display the Graphics Area.

The Graphics Area is blank.

b.
Click the Add Graph icon in the Graphics Area Toolbar.

A new graph pane, with the attribute “Mount Read MB”, is added to the Graphics Area display.

c.
Click the Change Graphed Attribute icon in the Graph Pane Toolbar, and select an attribute you want to graph.

d.
Repeat Step b and Step c for any additional attributes you want to graph.

The graphs are updated to display the system average for the attributes you have selected. The examples below show “Write Efficiency”, “Read Margin”, and “R/W Rate MB/sec”.

4.
To calculate total errors by error 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.
c.
Use a compatible spreadsheet application to open the file and summarize the data.
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