產(chǎn)品名稱Product密級ity產(chǎn)品版本ProductTotal13pages13FC(擬制審核審核批準(zhǔn)增加交換機zone分區(qū)與分區(qū)(Partition)LIPIsolation與zoning分區(qū)LoopSwitch和Fabric目錄Tableof概 廠家及產(chǎn) LSI兼容的FC BrocadeFCSwitch的一些參 Brocade4GbpsFC Brocade LoopSwitch和Fabric Zone Zone Hard Soft threeFibreChannel Pointto Arbitrated Switched PortTypesand Switch Device Ports FC光纖通道交換機（FCSWITCH）是SAN的，它連接著主機和設(shè)備。一般可分為級交換機工作組級光纖交換機級光纖交換機工作組級光纖交換機應(yīng)用最多的領(lǐng)域是小型SAN，通過級聯(lián)交換機，能夠建立一個大型的、虛擬的、具有分布式優(yōu)點的交換機，并且它可以的距離非常大。級交換機（又叫導(dǎo)向器）一般位于大型SAN的中心，支持光纖以外的協(xié)議（像LSI兼容的FCFCSWITCH的主要廠家有Brocade、McData、Cisco、Qlogic。另外也支持ENGENIO等廠BROCADE：Silkworm48000Silkworm24000Silkworm12000Silkworm5000Silkworm4900、Silkworm4100、Silkworm200E、Silkworm3900、Silkworm3850、Silkworm3800、Silkworm3200、Silkworm3250、Silkworm2800、Silkworm2400。Sanbox1400、SANBox2-8、SANBox2-16、SANBox2-64。 、00、Sphereon3232、Sphereon3216BrocadeFCSwitch200E200E/4100/16個端口(8、12、16)；32個端口(16、24、32)；64個端口(32、48、通用（E、F和擴展性全Fabric構(gòu)架，最多239傳輸性1、2、4Gbit/sec端口速聚合帶128Gbit/sec256Gbit/sec512Gbit/secISL4/88端口，163232Gbps(交換機間鏈路合并支持單播(unicast)和廣播端口類FL_Port、F_Port和E_Port激短波長激光器(SWL)，最長距離500米；長波長激光器(LWL)，最長10公里(ELWL)，最長80公里；距離取決于光學(xué)電纜和端口速10/100以太網(wǎng)端口(RJ-45)；串行端口(RS-232)；通過ManagementServer實現(xiàn)的帶內(nèi)支持的管理軟件net；RADIUS；NMP(FEMIB，F(xiàn)CManagementMIB)；WebTools；Fabric使用BrocadeSMIAgent的第應(yīng)Brocade4GbpsFCBrocade9600數(shù)據(jù)位：8奇偶校驗位：無停止位：1流控：無）net登錄的默認(rèn)的用戶名和為admin/password（admin/password）關(guān)于光纖交換板的一些詳細(xì)信息可參考服務(wù)器的資料。了解命令的操作，可以減少不少時間。下面列出最常用令。supportshow：printsswitchinformationfordebuggingpurposes. disytheerrorlogswitchShow:zoneShowzone（或cfgShow）portShowport：portDisableportEnableZone：zonename、zonemember（即端、WWN等）cfgAddcfgName,AddamembertoacfgCreatecfgName,CreateazonecfgDeleteDeleteazonecfgRemovecfgName,RemoveamemberfromaPrintzoneconfigurationToaddanewzonetotheconfiguration"USA_cfg"sw5:admin>cfgAdd"USA_cfg","Green_zone"sw5:admin>cfgCreate"USA_cfg","Red_zone;Blue_zone;sw5:admin>cfgDeletesw5:admin>cfgRemove"USA_cfg",zoneAddzoneName,AddamembertoazoneCreatezoneName,CreateazoneDeleteDeleteazoneRemovezoneName,RemoveamemberfromaPrintzonesw5:admin>zoneAdd"Blue_zone","array3;array4;ClearallzoneDisableazonecfgEnableEnableazoneSavezoneconfigurationsinPortcfgshowLongDistanceDisys(..)orOFFwhenlongdistancemodeisoff;otherwise,disyslongdistancelevelsasfollows:LEThelinkisupto10km.LMThelinkisupto25km.L1Thelinkisupto50km.L2Thelinkisupto100km.LDThedistanceisdeterminedLSThedistanceisdeterminedstaticallybyuserinput.ThisvalueissetbytheportCfgLongDistancecommand.為什么要使用LSILogic,Adaptec,QLogic,Emulex,JNI,LSILogic,IBMSunHPEMCHDS,Windows,Solaris,HP-UXAIXLinux,NetWareIRIX,的多臺LIPIsolation（LIP）與zoning分很多用戶將Zoning分區(qū)和LIP，認(rèn)為Zoning就是LIP，實際情況為兩者是不同當(dāng)FC交換機遵循FC-AL協(xié)議工作時，一般所有的設(shè)備之間協(xié)商AL_PA地址（或常說的有的機器停止工作進行地址協(xié)商，因此LIP會使系統(tǒng)中斷工作。（注：一些Loop架構(gòu)的陣列， 頻流應(yīng)用和磁帶庫備份應(yīng)用。根據(jù)FC-AL協(xié)議標(biāo)準(zhǔn)，LIP一般需要15毫秒，而遵循FC-SW協(xié)議的根據(jù)實際的SAN環(huán)境的復(fù)雜程度甚至影響正常通訊達數(shù)秒（所以對于SAN網(wǎng)絡(luò)不要配置得太復(fù)雜）對于不具備LIP功能的交換機，在解決 交換機zone分區(qū)與分區(qū)在行業(yè)市場推廣,當(dāng)測試的分區(qū)功能時,客戶常會問,的分區(qū)(Partitong)功能交換機層面的Zoning分區(qū)劃分可以有效提供一種解決方案這樣服務(wù)器只能同一分區(qū)內(nèi)的設(shè)備，提高設(shè)備的安全性。陣列的分區(qū)(StoragePartition)是針對于某一臺而言,它的作用相當(dāng)于將一臺模擬成N個小的系統(tǒng)，每臺主機或主機組只某個小的系統(tǒng)。多個異類平臺的主機一臺必須使用分區(qū)功能將分成幾個小的系統(tǒng)，每類主機某個小。多個異類平臺的主機多臺，可以通過交換機的zone功能，使某類主機只該SAN環(huán)境中的一臺或幾臺。可見交換機的zone分區(qū)與partition的區(qū)別，通過交換機的zone分區(qū)可以把不同廠商的使用的分區(qū)功能（StoragePartition）LoopSwitch和FabricFibreChannel有兩種常用的拓?fù)浣Y(jié)構(gòu)FibreChannelArbitratedLoopFC-AL)和Fabric。我們FC-AL使用一個字節(jié)的地址，稱為AL_PA地址（ArbitratedLoopPhysicalAddress）。由于協(xié)16個地址，實際可用的只有239個。每個交換都必須具有不同的_ID，因此所有的交換機廠而設(shè)備連接到Fabric交換機上，它會首先做一個FabricLogin，向交換機登錄，從而獲得3個字常工作。如：Fabric登錄服務(wù)，命名服務(wù)，別名服務(wù)，服務(wù)等等。而LoopSwitch特別適合廣Switch更有優(yōu)勢。因為，各類產(chǎn)品的默認(rèn)設(shè)置都是Loop優(yōu)先。和FabricSwitch都是每端口獨享100MB/S（或200MB/S）的帶寬，而Hub卻只能是多端口共享100MB/S（或200MB/S）的帶寬Zone關(guān)于zoneZonememberscanonlyseemembersintheirzonesandaccessonlyoneanother.ZonescreateVirtualPrivateSANswithintheFabric.AccessbetweenelementscanbetightlycontrolledandmanagedIdeallyonlyoneInitiatorandoneTargetperZoneforbestisolationandeaseoftroubleshootingconnectivityissues（理想的方式時一個zone只有一個Initiator和一個Target，這樣可以可以起到最好的，也Zonesmaybeconfigureddynamicallywithnoimpacttounaffectedareas.Configuringnewzonesdoesnotinterrupttrafficonunaffectedportsordevices.Whenazoningconfigurationisenabled,anydevicenotdefinedinanyzonehasnoaccesstotheFabricThisminimizesdisruptionwhennewdevicesareaddedtotheFabricbyensuringthatalltestscanbeperformedbeforeitisavailabletotheSANcommunity.Zonescanoverlap.AlldevicesconnectedtoaFabricmaybeconfiguredintooneormorezones.Astoragearraycanbeamemberofmultiplezonesandthusavailabletoanyelementswithcommonzones。ASANConfigurationcancontainanunlimitednumberofzones（一個配置里可以有無限個Zonesdonotaffectdatatrafficacrossinter-switchlinks(ISLs)incascadedswitchconfigurations.BecauseHardZoningenmentisperformedatthedestination,anInter-switchLinkcancarrydatatrafficfromallzones.（zone不影響交換機級連時的數(shù)據(jù)傳輸，因為hardzone的執(zhí)行是在目標(biāo)端，ISL作為交換機ZoneHardZones(Switch/PortLevelSoftZones(WWNHardCreatedwhenallmembersofthezonearespecifiedasswitchHard,orhardware-end,zonesarethemostsecureWhenazonememberisspecifiedbyphysicalFabricportnumber,thenanyandalldevicesconnectedtothatportareinthezone.Ifthisportisanarbitratedloop,thenalldevicesontheloopareinthezone.AnynumberofportsintheFabriccanbeconfiguredasahardSoftSoft,orsoftware-end,zonessimplyinfluencethelistofitemsreturnedtobytheNameServer.Ahostwillbegivenonlythelistofdevicesavailablewithinitszone.AutomaticallycreatedwheneveranyelementinthezoneisspecifiedbyaWWN,WorldWideName.AdeviceisincludedinazoneifeithertheNodeWorldWideNameorPortWorldWideNameentriesmatchadefinedelementinthezone.Allowsforphysicalrelocationofequipmenttodifferentswitch/portsandstillstaywithinthesamezone.IfHBAchanges,thenzoningalsoneedtobethreeFibreChannelPointtoDedicatedbandwidthconnectionbetweentwoArbitratedNL_portsareN_portswithaddedloopfunctions,theyretransmitpacketsnotaddressedtothem.SharedbandwidthUsearbitrationschemetogaincontroloftheSwitchedN_portsandNL_portsconnecttoothernodesviaaEachconnectionisfull-duplexforveryhighsystemScaledPortTypesandSwitchU_port–Universalport,aportwaiting esomeothertypeofG_port–GenericportdesignatorforacombinedF/EG_Port。G_PortF_PortE_portExpansionportconnectstwoswitchestomakeafabric.（擴展端口F_portAfabricporttowhichanN_portattaches.（用于連接FL_port–AfabricloopporttowhichaloopattachesDeviceN_portPortdesignatorfordirectFabricattacheddevicesN_Port是連接到光纖網(wǎng)絡(luò)的設(shè)備端口的指定值NL_port–Devicethatisattachedtotheloop(i.e.,host,NL_PortFL_PortPortsInthevariousdiscussions,wewillmentiondifferentkindsofFibreChannelports.Itis,therefore,importanttounderstandwhatismeantbythesedifferenttypesofports.AnE_Portisanexpansionport.AportisdesignatedanE_PortwhenitisusedasaninterswitchexpansionporttoconnecttotheE_Portofanotherswitch,tobuildalargerswitchedfabric.TheseportsarefoundinFibreChannelswitchedfabricsandareusedtointerconnecttheindividualswitchorroutingelements.TheyarenotthesourceordestinationofIUs,butinsteadfunctionliketheF_PortsandFL_PortstorelaytheIUsfromoneswitchorroutingelementstoanother.E_PortscanonlyattachtootherE_Ports.AnIsolatedE_Portisaportthatisonlinebutnotoperationalbetweenswitchesduetooverlap IDornonidenticalparameters.AnF_Portisafabricportthatisnotloopcapable.UsedtoconnectanN_Porttoaswitch.TheseportsarefoundinFibreChannelswitchedfabrics.TheyarenotthesourceordestinationofIUs,butinsteadfunctiononlyasa“middle-man”torelaytheIUsfromthesendertothereceiver.F_PortscanonlybeattachedtoN_Ports.AnFL_Portisafabricportthatisloopcapable.UsedtoconnectNL_Portstotheswitchinaloopconfiguration.TheseportsarejustliketheF_Portsdescribedabove,exceptthattheyconnecttoanFC-ALtopology.FL_PortscanonlyattachtoNL_Ports.AG_PortisagenericportthatcanoperateaseitheranE_PortoranF_Port.AportisdefinedasaG_Portwhenitisnotyetconnectedorhasnotyetassumedaspecificfunctioninthefabric.AnL_Portisaloopcapablefabricportornode.ThisisabasicportinaFibreChannelArbitratedLoop(FC-AL)topology.IfanN_PortisoperatingonaloopitisreferredtoasanNL_Port.IfafabricportisonaloopitisknownasanFL_Port.Todrawthedistinction,throughoutthisbookwewillalwaysqualifyL_PortsaseitherNL_PortsorFL_Ports.N_Portisanodeportthatisnotloopcapable.Usedtoconnectanequipmentporttothefabric.TheseportsarefoundinFibreChannelnodes,whicharedefinedtobethesourceordestinationofinformationunits(IU).I/Odevicesandhostsystemsinterconnectedinpoint-to-pointorswitchedtopologiesuseN_Portsfortheirconnection.N_PortscanonlyattachtootherN_PortsortoF_Ports.AnNL_Portisanodeportthatisloopcapable.UsedtoconnectanequipmentporttothefabricinaloopconfigurationthroughanFL_Port.TheseportsarejustliketheN_Portdescribedabove,exceptthattheyconnecttoaFibreChannelAr