Hitachi Dynamic Link Manager Software Users Guide for AIX

Figure 2-11 Action What Will Happen When an Intermittent Error Occurs
on a Path
When an intermittent error does not occur
If an error does not occur on a path a specified number of times within a
specified interval, an intermittent error will not occur. In such a case, the
error monitoring will finish when the specified error-monitoring interval
finishes, upon which the number of errors is reset to 0. If an error occurs on
the path again at a later time, error monitoring will resume when the path is
recovered from the error via an automatic failback.
If it takes a long time for an error to occur, an intermittent error can be more
easily detected by increasing the error-monitoring interval or by decreasing
the number of times that the error needs to occur.
The figure below shows the action taken when an intermittent error is
assumed not to have occurred on the path. For this example, the path is
determined to have an intermittent error if the error occurs three or more
times in 30 minutes. The events that occur are described by using the time
arrows.
Figure 2-12 What Will Happen When an Intermittent Error Does Not Occur
on a Path
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HDLM Functions
Hitachi Dynamic Link Manager (for AIX) User Guide