Sisoloko sisiva ngokutshintsha kwefiber optic kunye neetransceivers zefiber optic.Phakathi kwazo, iiswitshi zefiber optic zizixhobo zokuhanjiswa kwenethiwekhi ezinesantya esiphezulu, ezikwabizwa ngokuba zizitshixo zefayibha kunye nokutshintsha kweSAN.Xa kuthelekiswa nokutshintsha okuqhelekileyo, basebenzisa iintambo zefiber optic njengesixhobo sokuhambisa.phakathi.Iingenelo zokuhanjiswa kwefiber optical zisantya esikhawulezayo kunye nobuchule obunamandla bokuchasana nokuphazamiseka.Zimbini iindidi eziphambili zokutshintsha kwefiber optic.Enye inguqu yeFC esetyenziselwa ukudibanisa kwindawo yokugcina.Enye iswitshi ye-Ethernet, izibuko lujongano lwefiber optical, kwaye inkangeleko iyafana nojongano oluqhelekileyo lombane, kodwa uhlobo lojongano lwahlukile.
Kukho iintlobo ezintathu zokutshintshwa kwefayibha: ukutshintshwa kwinqanaba lokungena, i-workgroup-level fiber switches, kunye ne-core-level fiber switches.Ke masiqale ngeyokuqala inqanaba elingundoqo lokutshintsha ifayibha optic!
I-1.core-level fiber optic switches
Into ebizwa ngokuba yi-core-level switches (ekwabizwa ngokuba ngabalawuli) ngokubanzi ibekwe kumbindi we-SAN enkulu, idibanisa iiswitshi ezininzi zomphetho omnye komnye ukwenza uthungelwano lweSAN ngamakhulu amazibuko.Ukutshintsha okungundoqo kunokusetyenziswa kwakhona njengokutshintsha okuzimeleyo okanye ukutshintshwa kwe-edge, kodwa imisebenzi yayo ephuculweyo kunye nesakhiwo sangaphakathi senza ukuba sisebenze ngcono kwindawo yokugcina engundoqo.Eminye imisebenzi ye-core switch nayo ibandakanya: inkxaso yeeprotocol ngaphandle kwe-fiber optical (njenge-InfiniBand), inkxaso ye-2Gbps yeFiber Channel, kunye neenkonzo eziphambili ze-optical (umzekelo: ukhuseleko, i-trunk kunye nokucoca isakhelo, njl.).Izitshixo zefayibha ezikwinqanaba eliphambili zidla ngokubonelela ngamazibuko amaninzi, ukusuka kumazibuko angama-64 ukuya kumazibuko angama-128 nangaphezulu.Isebenzisa uqhagamshelo olubanzi kakhulu lwangaphakathi kwindlela yezakhelo zedatha ezinobuninzi bebandwidth.Injongo yokusebenzisa ezi zitshintshi kukwakha inethiwekhi enkulu yokugubungela kunye nokubonelela nge-bandwidth enkulu.Ziyilelwe ukuhambisa imiqondiso yesakhelo ngokukhawuleza kangangoko kunokwenzeka phakathi kwamazibuko amaninzi anolibaziseko olufutshane.Ukongezelela, iinguqu ze-fiber eziphambili zihlala zisebenzisa iibhodi zeesekethe ezitshisayo ezisekelwe "kwi-blade type": nje ukuba ibhodi yokutshintsha ifakwe kwikhabhinethi, imisebenzi emitsha inokongezwa, kunye nokugcinwa kwe-intanethi kunokwenziwa.Kufuneka kwandiswe.Iiswitshi ezininzi zomgangatho ongundoqo azixhasi iilophu ezine-arbitrated okanye ezinye izixhobo eziqhagamshelwe ngokuthe ngqo.Bakhathalela kuphela amandla okutshintsha angundoqo.Ngenxa yokuba ukufumaneka yeyona nto ibalulekileyo kwindawo yonke, abantu bazimisele ukuchitha imali eninzi ekufuneni umsebenzi.Onke amacandelo otshintsho oluphezulu lwe-redundancy alunamsebenzi, okuphelisa ngokupheleleyo amanqaku angaphumeleli kwaye aqinisekise ixesha elide kakhulu le-Uptime.Ezi nkcitho zokungafuneki zisetyenziswa ngokubanzi kwiinqwelomoya ezifumanekayo eziphezulu, izixhobo zombane, iisekethe ezingafunekiyo, kunye nesoftware yokugcina ukufumaneka.Olu hlobo lokutshintsha luneesekethe ezininzi ezakhelwe ngaphakathi zokujongana nokusilela kwehardware ngaphakathi kokutshintsha.Iiswitshi ezingundoqo kwiiswitshi zefiber optic zibonelela ngokuthembeka okuphezulu kunye nokuxinana kwezibuko.Kwiziko ledatha kunye nenani elikhulu leziseko zeFiber Channel, iimveliso ezinjalo ziphantse zingabikho, zitshintshe indawo yokugcina indawo.Ke ngoko, kuninzi lothungelwano olufumanekayo oluphezulu, kuya kufuneka ukhethe inethwekhi enezitishi ezimbini ezakhiwe zizitshixo ezingundoqo zefiber.
I-2.i-workgroup-level fiber optic switches
Iiswitshi zeFiber optic zibonelela ngokukwazi ukuphosa iiswitshi ezininzi kwiFabric enkulu.Ngokudibanisa izibuko enye okanye ngaphezulu yokutshintsha ezimbini, onke amazibuko aqhagamshelwe kwiswitshi angabona umfanekiso okhethekileyo wothungelwano, kwaye nayiphi na i-node kule laphu inokunxibelelana namanye amakhonkco.Ngokusebenzisa i-cascading switches, i-switch enkulu, ebonakalayo, esasaziweyo inokusekwa, kwaye umgama onokuwuthatha mkhulu kakhulu.Ilaphu elakhiwe ngeeswitshi ezininzi likhangeleka njengelaphu elenziwe ngotshintsho olwahlukileyo.Amazibuko kuzo zonke iiswitshi zinokujongwa kwaye zifikeleleke njengawo onke amanye amazibuko kwilaphu njengokufikelela kwiiswitshi zasekhaya.Iseva yegama elidibeneyo kunye nenkonzo yolawulo ivumela ukujonga kunye nokuguqula zonke iinkcukacha zeFabric ngokusebenzisa ujongano olulodwa.Into ebalulekileyo ekudaleni ilaphu elisasazwayo kukufumana i-bandwidth yoxhumano phakathi kokutshintsha.Ireyithi esebenzayo phakathi kwazo naziphi na iizibuko ezimbini zichaphazeleka kwi-bandwidth esebenzayo yoxhumo phakathi kokutshintsha, kwaye kunokufuneka ukuba kusetyenziswe uxhulumaniso oluninzi phakathi kokutshintsha ukugcina i-bandwidth efunekayo.Ukutshintsha kweFiber Channel yeQela lomsebenzi zininzi kwaye zininzi.Iiswitshi zeqela lomsebenzi zisetyenziswa ngeendlela ezininzi, kodwa eyona ndawo isetyenziswa kakhulu yiSAN encinci.Utshintsho olunjalo lunokudityaniswa kunye ngemigca yoqhagamshelo phakathi kokutshintsha ukubonelela ngamazibuko amaninzi.Imigca yokudibanisa phakathi kokutshintsha inokudalwa nakweyiphi na i-port kwi-Fiber Channel switch.Nangona kunjalo, ukuba uceba ukusebenzisa iimveliso ezivela kubathengisi abaninzi, kufuneka uqinisekise ukuba izixhobo ziyasebenzisana.
3.ukutshintsha kwinqanaba lokungena
Ukusetyenziswa kokutshintsha kwenqanaba lokungena kwi-fiber optic switches ikakhulu kugxininiswe kumaqela amancinci asebenzayo kunye ne-8 ukuya kwi-16 port.Ifanelekile kwizihlandlo ezinamaxabiso aphantsi kunye nesidingo esincinci sokwandiswa nokulawula.Zihlala zisetyenziselwa ukubuyisela ii-hubs, ezinokubonelela nge-bandwidth ephezulu kwaye zinikeze uxhulumaniso oluthembekileyo kunama-hubs.Abantu ngokubanzi abathengi iiswitshi zomgangatho wokungena ngokwahlukeneyo, kodwa bahlala bezithenga kunye namanye amanqanaba okutshintsha ukwenza isisombululo esipheleleyo sokugcina.Izitshixo zefiber optic ezikwinqanaba lokungena zibonelela ngenqanaba elilinganiselweyo lesakhono sokukhupha izibuko.Ukuba abasebenzisi basebenzisa izixhobo ezikumgangatho ophantsi bodwa, banokuhlangabezana neengxaki ezithile zokulawula.