NEC Express5800/320Ma User Manual page 18

Instance Parameters
Scan retry. A checkbox that enables you to use Number of scan retries and Scan
retry poll rate (in seconds), which work in tandem.
You must check Scan retry to be able to specify a value for Number of scan retries and
Scan retry poll rate.
Number of scan retries. The number of times to retry the scan at the Scan retry poll
rate interval.
When Number of scan retries is enabled, if an instance's monitored value exceeds its
threshold, SAM continues to scan the instance at the Scan poll rate. If the Number of
scan retries value is reached and the instance's value still exceeds its threshold, a
threshold violation occurs. SAM will then generate an alert.
If you disable Number of scan retries (by disabling Scan retry), the first detected
threshold violation will generate an alert.
The range of values for this parameter varies per instance.
Scan retry poll rate (in seconds). The interval at which SAM makes subsequent
scans after detecting a first threshold violation. The subsequent scans are made to
verify that the threshold violation is not temporary (a spike).
You must enable Scan retry in order to use Scan retry poll rate.
The maximum value for this parameter varies per instance.
Scan idle. A check box that enables you to use Time between alerts (in seconds).
You must enable Scan idle to be able to specify a value for Time between alerts.
Time between alerts (in seconds). The number of seconds during which an instance
is not scanned after an alert has occurred. The Time between alerts is an idle period
for scanning.
Enabling this parameter prevents multiple alerts from being issued during the specified
period. This minimizes the number of alerts triggered by an instance that remains
outside of the normal range.
You must enable Scan idle in order to use Time between alerts.
The maximum value for this parameter is 72 hours (259200 seconds). A more typical
value is 3600 (1 hour).
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