ESX QE450.2 Specifiche Scaricare il pdf (Pagina 22)

Basic System Administration

22 VMware, Inc.

 VirtualCenterServer–TheworkingcoreofVirtualCenter.VirtualCenterServerisa

singleWindowsServiceandisinstalledtorunautomatically.AsaWindows

Service,theVirtualCenterServerrunscontinuouslyinthebackground,

performingitsmonitoringandmanagingactivitiesevenwhennoVIClientsare

connectedandevenifnobodyis

loggedontothecomputerwhereitresides.It

musthavenetworkaccesstoallthehostsitmanagesandbeavailablefornetwork

accessfromanymachinewheretheVIClientisrun.

VirtualCenterServercanbeinstalledinaWindowsvirtualmachineonanESX

Serverhost,allowing

ittotakeadvantageofthehigh‐availabilityaffordedby

VMwareHA.SeetheInstallationGuidefordetailsonsettingupthisconfiguration.

 VirtualCentermodules–Applicationsthatprovideadditionalfeaturesand

functionalitytoVirtualCenter.Typically,modulesconsistofaservercomponent

andaclientcomponent.Aftertheservercomponentofamoduleisinstalled,itis

registeredwiththeVirtualCenterserverandtheclientcomponentisavailableto

VirtualCenterclientsfordownload(see

“ManagingVirtualCenterModules”on

page 67).AfteramoduleisinstalledonaVirtualCenterclient,itmightalterthe

interfacebyaddingviews,tabs,toolbarbuttons,ormenuoptionsrelatedtothe

addedfunctionality.

ModulesleveragecoreVirtualCentercapabilities,suchasauthenticationand

permissionmanagement,butcanhavetheirowntypesof

events,tasks,metadata,

andprivileges.

ModulesrequireVirtualCenter,buttheycanbeinstalledanytimeafter

VirtualCenterhasbeeninstalled.ModulesandVirtualCentercanbeupgraded

independentofeachother.

 VirtualCenterdatabase–Apersistentstorageareaformaintainingstatusofeach

virtualmachine,host,andusermanagedintheVirtualCenterenvironment.The

VirtualCenterdatabasecanberemoteorlocaltotheVirtualCenterServermachine.

ThedatabaseisinstalledandconfiguredduringVirtualCenterinstallation.

IfyouareaccessingyourESXServer

hostdirectlythroughaVIClient,andnot

throughaVirtualCenterServerandassociatedVIClient,youdonotusea

VirtualCenterdatabase.

 Datastore–Thestoragelocationsforthevirtualmachinefilesspecifiedwhen

creatingvirtualmachines.Datastoreshidetheidiosyncrasiesofvariousstorage

options(suchasVMFSvolumesonlocalSCSIdisksoftheserver,the FibreChannel

SANdiskarrays,theiSCSISANdiskarrays,orNetworkAttachedStorage(NAS)

arrays)

andprovideauniformmodelforvariousstorageproductsrequiredby

virtualmachines.

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