ESX QE450.2 Spezifikationen PDF herunterladen (Seite 314)

Basic System Administration

314 VMware, Inc.

Understanding Alarms

Alarmssendnotificationmessageswhenselectedeventsoccurtooronhostsorvirtual

machines.Alarmsindicatethestatuslevelsofanobjectorcollectionofobjectsinthe

hierarchy.Alarmscanbedefinedatallhierarchicallevels,includingfolders,

datacenters,clusters,resourcepools,hosts,andvirtualmachines.

Alarmsareinherited

fromparentlevelsandcannotbechangedoroverriddenatachild

level.Whenyouaddnewalarmstoanyobjectyoucontributetothecollectionofalarms

thatareinforceatanyofitschildlevels.

Whenanalarmiscreated,VirtualCenterverifiestheuserpermissionstoperform

the

actionsontherelevantdatacenters,hosts,andvirtualmachines.Afterthealarmis

created,thealarmisperformedevenifthecreatingusernolongerhaspermissionto

createthealarm.

Alarmsareappliedtoeitherhostsorvirtualmachines.Eachalarmhasatriggering

eventandanotificationmethod.

There

aretwokindsofalarmtriggers:

 Percentage—Monitorshostprocessor(orCPU)usage,hostmemoryusage,

virtualmachineprocessor(orCPU)usage,virtualmachinememory,andvirtual

machineheartbeat.

ThetriggeringoptionsareIsAbove(percent)andIsBelow(percent).Thedefault

monitorforvirtualmachineheartbeatissettoIsBelow.Thedefaultmonitorfor

all

otherpercentageoptionsissettoIsAbove.

 State—Monitorhoststateandvirtualmachinestate.

Thetriggeringoptionsare:Is(state)andIsNot(state).

Thereareseveraltypesofalarmnotificationmethods:

 Sendanotificationemailmessage

SMTPsendsanemailmessage.TheSMTPmustbereadywhentheemailmessage

issent.TherearetwowaystosetSMTP:throughVirtualCenterorthrough

MicrosoftOutlookExpress.TheVirtualCentersetupisnotalwaysneededifthe

SMTPsettinginOutlookExpressiscorrect.



TheVirtualCenterServergeneratesthesubjectandbodytextoftheemailmessage.

OnlytheTolist(receiver)isrequiredfromuserinput.Specifytheemailmessage

addresswherethemessageshouldbesent.Separatethenamesofmultiple

recipientswithcommasorsemicolons.

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ESX QE450.2 Spezifikationen Seite 314