Specifications

VMware, Inc. 281
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Thischapterdescribeshowtosetupperformancestatisticsforhosts,clusters,resource
pools,andvirtualmachines.Italsoprovidesinformationoncustomizingandviewing
performancechartsandresourcemaps.
Thischaptercontainsthefollowingtopics:
 “StatisticsCollection”onpage 281
 “PerformanceCharts”onpage 289
 “ResourceMaps”onpage 293
Statistics Collection
Youcancollectperformancestatisticsforallhosts,clusters,virtualmachines,resource
pools,andinyourenvironment.ThisincludesstatisticaldataonCPUs,disks,
networks,andthelike.VirtualCenterusesstatisticcounterstoqueryeachentityand
writesthedatatotheVirtualCenterdatabase.Toensureperformanceisnotimpaired
when
collectingandwritingthedatatothedatabase,VirtualCenterperformscyclical
queriesratherthanperformingonesinglequery.Italsousescollectionlevelsto
determinehowmanystatisticcounterstousewhilequeryingfordata.Combined,
collectionintervalsandcollectionlevelsenableyoutocontrolhowstatisticsare
collectedacross
yourenvironment.
Setting Up and Monitoring
Performance Statistics and
Resource Maps
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