Using the Interval Monitor › IO History

IO History

 PM-Rnn.n SYSTEM71         CA, Inc.                  V71      08.348 15:01:25.14
 CMD-->                                                             Window : 02

   02 14:45 IOHS IO History                                                  i
   Start Waits   Wait    Avg         .2        .4        .6        .8         1
    Time         Time   Wait ---------|---------|---------|---------|---------|
 _ 02:30     0 .0000S .0000S
 _ 02:45     0 .0000S .0000S
 _ 03:00     0 .0000S .0000S
 _ 03:15     0 .0000S .0000S
 _ 03:30     0 .0000S .0000S
 _ 03:45     0 .0000S .0000S
 _ 04:00     0 .0000S .0000S
 _ 04:15     0 .0000S .0000S
 _ 04:30     0 .0000S .0000S
 _ 04:45     0 .0000S .0000S
 _ 05:00     0 .0000S .0000S
 _ 05:15     0 .0000S .0000S
 _ 05:30     0 .0000S .0000S
 _ 05:45     0 .0000S .0000S
 _ 06:00     0 .0000S .0000S
 _ 06:15     0 .0000S .0000S
 _ 06:30     0 .0000S .0000S
 _ 06:45     0 .0000S .0000S

Screen Description

The IO History screen displays each interval being tracked. For each interval, the IO History screen shows a total wait count and time for all nonsystem areas. The screen also shows the average wait time for the interval, both numerically and graphically.

Using This Screen

• To request the Wait Type by Interval screen for a specific interval, type any other nonblank character to the left of the interval for which the detail is required and press [Enter].
• To request the Detail screen for the same interval, press [PF9].

What To Look For

Use the graphic display to determine intervals with higher than average waits.