1. User's Guide
  2. Understanding STA Data
  3. General Error Trend Analysis
  4. View Trends in Critical Drive and Media Errors

View Trends in Critical Drive and Media Errors

Drive and media errors result from exchanges. Therefore, use the Exchanges Overview screen for a consolidated view of errors to answer the question "Is the total number of errors trending up, down, or staying stable?".

  1. In the left navigation, select Tape System Activity, select Exchanges Overview.
  2. In the Templates menu, select the "STA‐Exchanges‐Alerts‐All" (or "STA‐Exchanges‐Alerts‐Errors" for a smaller subset).
  3. The template includes several columns that indicate different types of errors. Review the errors listed.
  4. If there are enough errors to indicate possible trends, add graphs of interest to the Graph Area:
    1. Restore the Graph Area.
    2. Click Add Graph Add Graph icon. STA displays a new graph with the attribute MB Read.
      Add Graph icon noted in toolbar
    3. Within the graph's toolbar, click Change Graphed Attribute Change Graph Attribute icon and select an attribute of interest.
      Change Graphed Attribute menu with item selected.
    4. Repeat to add multiple graphs (such as Write Efficiency, Read Margin, and R/W Rate MB/sec).
  5. Use an external spreadsheet application to calculate total errors by error type.
    1. Click the Export Export icon and select Exchange.xls (see Export Table Data to a Spreadsheet or Document for more information).
    2. Save the file to a location on your local computer.
    3. Use a spreadsheet application to open the file and summarize the data.