I/O Wait Time

Overview

The I/O Wait Time alarm monitors the percentage of time during which the processor was waiting for I/O (average value for each processor). If the percentage of time during which the processor is waiting for I/O is greater than the threshold, I/O operations, such as updating a database, might be delayed.

Primary settings

PFM - Web Console alarm propertySettings
ItemDetailed item
Main InformationProductUNIX
Alarm messageI/O wait time is %CVS%
Enable alarmYes
Monitoring time rangeEvaluate regularly
Evaluate all dataNo
Report alarm when the following damping condition is reachedYes
interval(s)3
occurrence(s) during2
ActionEmail--
Command--
SNMPAbnormal, Warning, Normal
Alarm ConditionsRecordSystem Summary Overview (PI)
FieldWait %
Abnormal conditionWait % > 80
Warning conditionWait % > 60
Legend:
--: Setting is always ignored.

Alarm tables

PFM UNIX Template Alarms 09.00

PFM UNIX Template Alarms [DSK] 09.00

Related reports

Reports/UNIX/Troubleshooting/Real-Time/I/O Activity - Top 10 Processes