Spectra T950 - Page 70

Chapter 2 — Architecture Overview Fibre Channel Connectivity
November 2016 User Guide—Spectra T950 Library
70
World Wide Names for Fibre Channel Partitions
TheWorldWideName(WWN)displayedforeachpartitionontheShared
LibraryServicesscreenistheWWNofthecontroller(RIM,F‐QIP,ordrive)
thatprovidestheroboticcontrolpathforthepartition(theexporting
controller).TheWWNisbasedonthephysicallocationofthecontrollerin
thelibraryandremainsconstantevenifthecontrollerisreplaced.Thenew
controllerassumesthelocation‐basedWWN.
Note: Ifmultipleexportingcontrollersareconfiguredinapartition,
therearemultipleWWNsforthepartition.ClickSummaryto
displaythePartitionSettingsscreen,whichlistsallofthe
WWNs.
For Partitions with F-QIPs or RIMs as the Exporting Controller
 ThepartitionWWNisactuallytheWorldWideNodeName(WWNN)
fortheexportingcontroller.
 IfmultiplepartitionsusethesameFibreChannelportontheRIMor
QIP,allofthepartitionshavethesameWWNNandthesameWorld
WidePortName(WWPN).However,thepartitionswillhavedifferent
LUNsunderthosecontrollers,startingatLUNzero(0).
 IfyoucreatetwopartitionsandconfigureonepartitiontousePortA
andanothertousePortB,theWWNN/WWPNofportAwillstartwith
21andtheWWNN/WWPNofportBwillstartwith22.Inthiscasethe
portsareindependent.However,bothofthepartitionswillshowthe
WWNforPortAonly.
 IfyouexportthesamepartitionoutbothportAandportBonaRIMor
QIP,theWWNNwillbethesameforbothportsbuttheWWPNwillbe
different.Thisscenarioisatypeofredundantpathtotherobotics.
 FormoreinformationaboutWWNs,logontotheportal(seeAccessing
theTechnicalSupportPortalonpage493),opentheKnowledgeBase,
andintheKBAfield,enter01764toaccessthearticleSpectraLibrary
WorldWideNames(WWNs)forQIPs(thearticlediscussesF‐QIPs;the
conceptsarethesameforaRIM).
Figure 34 The WWN assigned to the partition.