Red Hat ENTERPRISE LINUX 3 - USING GCC Manual de usuario descargar pdf (Pagina 7)

Standalonesystemsusingthesetechnologiescanbeeasilyupgradedtooperateinmulti-

systemandvirtualizedcongurationsbyupgradingtoRedHatEnterpriseLinuxAdvanced

Platform,whichprovidescompatible,multi-systemandmulti-guest(cluster-wide)

versionsoftheLVM,GFSandDLM.Thisseamlessmigrationeliminatestheneedto

remapthestoragesubsystem,reformatdiskpartitions,orrewriteapplication

synchronizationroutineswhenmovingfromastandaloneservertoamulti-system

orvirtualizedconguration.

Application and virtual machine failover

RedHatEnterpriseLinuxAdvancedPlatformincludesclusterfailoversupport.

Thisallowsforapplicationsandvirtualmachinestobeautomaticallyrestartedor

dynamicallytransferredontoothermachinesinthecluster.Additionally,application

dependentresourcescanbedynamicallymonitoredtotriggerre-hostingofapplications

toalternatephysicalorvirtualmachinestoensurecontinuousoperation.

Enhanced storage capabilities

Alargenumberofnewcapabilitiesareprovidedintheclustering,storage,lesystemand

interconnectspace.Theseinclude:

•TheExt3lesystemwillnowsupport16TBlesystems.

•SystemsthatuseiSCSIandFibreChannelcanbeconguredduringRedHatEnterprise

Linuxinstallation.

•OpenAIS–TheApplicationInterfaceSpecicationisasoftwareAPIandsetofpolicies

whichareusedtodevelopapplicationsthatmaintainserviceduringfaults.TheAPI

consistsofAvailabilityManagementFramework(AMF)whichprovidesapplication

failover,ClusterMembership(CLM),Checkpointing(CKPT),Event(EVT),Messaging

(MSG),andDistributedLocks(DLOCK).AIScanmaskmanytypesoffaultsin

applications,middleware,operatingsystems,orevenhardwarebyprovidingasimple

frameworkforallowingdeveloperstocreateredundantapplications.Theseredundant

applicationscanbedistributedovermultiplenodessuchthatifanyonenodefaults,

anothernodecanrecover.

•Dm-cryptprovidesblock-levelstoragedeviceencryption.Dm-cryptcanbeusedto

providetransparentdataencryptionforanymountabledevice(including,forexample,

USBmemorysticks).Anencryptionkeyisspeciedatmounttime;allwritestothe

devicearethenencryptedandallreadsdecrypted.Thisfeatureisespeciallyvaluable

forhigh-risksystems,suchaslaptops.

Red Hat Network

TheRedHatNetworkclient-sidecomponent(Up2date)hasbeenreplacedwiththehighly

regarded,opensourceYumupdater,andusesPupasthegraphicaluserinterface.Yumis

abletoaccesspublicsoftwarerepositories,andaRedHatYumpluginenablesittoaccess

RedHatNetworkchannels.

What’s New in Red Hat Enterprise Linux 5 





availability

1 2 3 4 5 6 7 8 9 10 11

Sin comentarios

Red Hat ENTERPRISE LINUX 3 - USING GCC Manual de usuario Pagina 7