White Papers

DeployingOperatingSystemoniSCSIandFCOELUN

Introduction

Thiswhitepaperdescribesinstalling,enabling,andconfiguringforInternetSmallComputerSystemInterface(iSCSI),

andFibreChanneloverEthernet(FCoE)foruniversalconvergednetworkadapters(UCNAs).

BootfromSANistheprocessofbootingaserverdirectlyfromadiskoperatingsystem(DOS)imagelocatedona

storageareanetwork(SAN).

WhenbootingfromSAN,thestoragedeviceistypicallyidentifiedbyitsWorldWide

PortName(WWPN)andaLogicalUnitNumber(LUN).Byextendingtheserversystembootbasicinput/output

system(BIOS),bootfromSANfunctionalityisprovidedbythebootBIOScontainedintheDellserver.When

properly

configured,thecontrollerthenpermanentlydirectstheservertobootfromalogicalunit(physicaldisk

drive)ontheSANasifitwasalocalphysicaldiskdrive.

iSCSIOverview

iSCSIisan(InternetProtocol)IP–basedstoragenetworkingstandardforlinkingdatastoragefacilities.Bycarrying

SCSIcommandsoverIPnetworks,iSCSIisusedtofacilitatedatatransfersoverintranetsandtomanagestorage

overlongdistances.iSCSIcanbeusedtotransmitdataoverlocalareanetworks(LANs),widearea

networks

(WANs),ortheInternetandcanenablelocation‐independentdatastorageandretrieval.

iSCSI–basedSANArchitecture



Host server or client system (iSCSI initiator)



 

Raiddiskarray(iSCSITarget)



 



IP Network

Individualvirtualdriveima