Specifications

VMware, Inc. 283
Chapter 18 Setting Up and Monitoring Performance Statistics and Resource Maps
collectioninterval,withlev el4havingthelargestnumberofcounters.Bydefault,all
collectionintervalsusecollectionlevel1.
Table 18‐2,“StatisticCollectionLevels,”onpage 283describesthestatisticscollection
levelsandprovidesrecommendationsonwhentousethem.

NOTEThecollectionlevelforanintervalcannotbegreaterthanthecollectionlevelset
fortheprecedingcollectioninterval.Forexample,iftheMonthintervalissetto
collectionlevel3,theYearintervalcanbesettocollectionlevel1,2,or3,butnotto
collectionlevel4.
NOTEThecollectionlevelvalueforacollectionintervalmustbelessthanorequalto
thecollectionlevelsetfortheproceedingcollectioninterval.ThisisaVirtualCenter
dependency.
Table 18-2. Statistic Collection Levels
Collection Level Metrics Best Practice
Level1Basicmetrics:
 AverageusageforCPU,memory,disk,and
networkcounters
 Systemuptimeandheartbeat
 DRSmetrics
Useforlong‐termperformance
monitoringwhendevice
statisticsarenotrequired.
Level1isthedefaultCollection
LevelforallCollectionIntervals.
Level2 Allmetricsfor:
 CPU,memory,disk,andnetworkcounters
 Average,summation,andlatestrolluptypes
(doesnotincludemaximumandminimum
rolluptypes)
 Systemuptimeandheartbeat
 DRSmetrics
Useforlong‐termperformance
monitoringwhendevice
statisticsarenotrequiredbut
youwanttomonitormorethan
thebasicstatistics.