Specifications

VMware, Inc. 289
Chapter 18 Setting Up and Monitoring Performance Statistics and Resource Maps
3 (Optional)Validatethechangebyusingthedatabaseestimationcalculator.
 EnterthenumberofPhysicalHostsinyourinventory.
 EnterthenumberofVirtualMachinesinyourinventory.
To estimate the statistics impact on the database
1Configureyourcollectionintervals.See“Toconfigurecollectionintervals.”
2EnterthenumberofPhysicalHostsinyourinventory.
3EnterthenumberofVirtualMachinesinyourinventory.
Performance Charts
Performancechartsdisplayperformancedataforavarietyofmetrics.Performance
chartsareaccessiblethroughthePerformancetab,whichisavailableforhosts,clusters,
resourcepools,andvirtualmachines.Performancedataisspecifictothetypeofobject.
Forexample,virtualmachineperformancemetricsaredifferentfromcluster
performancemetrics.
Charts
candisplayreal‐timedata(20secondintervalsforESXServer3.xhosts;60
secondintervalsforESXServer2.xhosts)orhistoricaldata.Theamountofhistorical
datacollecteddependsonthefollowingsettings:
 StatisticsCollectionIntervals
 StatisticsCollectionLevels
Formoreinformationonthesesettings,see“ConfiguringStatisticsCollection
Intervals”onpage 287.
Real‐timedatacanbeviewedthroughaVIClientconnectedtoeitheraVirtualCenter
serverordirectlytoanESXServerhost.Historicaldata,however,canbeviewedonly
throughaVIClientconnectedto
VirtualCenter.Allperformancedataisavailableto
externalprogramsthroughtheVMwareInfrastructureSDK.
N
OTEFullchartfunctionalityisavailabletoVIClientsessionsonlywhentheyare
connectedto,andwhenthemonitoreditemsaremanagedby,VirtualCenter.VIClients
connecteddirectlytoESXServerhostsonlydisplayreal‐timestatisticsand5minute
statisticsfor1day.