Sivame ukuzwa nge-fiber opticamaswishikanye nama-fiber optic transceivers. Phakathi kwabo, i-fiber opticamaswishiziyimishini yokudlulisa inethiwekhi enesivinini esikhulu, ebizwa nangokuthi i-fiber channelamaswishikanye ne-SANamaswishi. Uma kuqhathaniswa nezijwayelekileamaswishi, basebenzisa izintambo ze-fiber optic njengemishini yokudlulisela. okuphakathi. Izinzuzo zokudluliswa kwe-fiber optical isivinini esisheshayo nekhono eliqinile lokulwa nokuphazamiseka. Kunezinhlobo ezimbili eziyinhloko ze-fiber opticamaswishi. Enye iFCshintshaesetshenziselwa ukuxhuma kusitoreji. Enye i-Ethernetshintsha, ichweba liwukuxhumana kwe-fiber optical, futhi ukubukeka kuyafana nesixhumi esibonakalayo sikagesi esivamile, kodwa uhlobo lwesixhumi esibonakalayo luhlukile.
Kunezinhlobo ezintathu zokushintshwa kwefayibha: ukushintsha kwezinga lokungena, ukushintshwa kwefayibha yeleveli yeqembu lomsebenzi, kanye nokushintshwa kwefayibha yezinga eliyinhloko. Ngakho-ke ake siqale nge-fiber optic yokuqala yezinga eliphezulushintsha!
1.amaswishi e-fiber optic yezinga eliyisisekelo
Okubizwa nge-core-levelamaswishi(abaphinde babizwe ngokuthi abaqondisi) ngokuvamile batholakala maphakathi ne-SAN enkulu, exhuma emaphethelweni ambalwaamaswishikomunye nomunye ukwakha inethiwekhi ye-SAN enamakhulu ezikhumulo. Umnyomboshintshaingasetshenziswa futhi njenge-standaloneshintshanoma umphethoshintsha, kodwa imisebenzi yayo ethuthukisiwe kanye nesakhiwo sangaphakathi siyenza isebenze kangcono endaweni yokugcina okuyisisekelo. Eminye imisebenzi ye-coreshintshafuthi kufaka phakathi: ukusekelwa kwezivumelwano ngaphandle kwe-fiber optical (njenge-InfiniBand), ukusekelwa kwe-2Gbps Fiber Channel, nezinsizakalo ezithuthukisiwe ze-optical (isibonelo: ukuphepha, ukuhlunga kwe-trunk kanye nohlaka, njll.). Amaswishi e-fiber optic yeleveli eyinhloko ngokuvamile ahlinzeka ngezimbobo eziningi, kusukela ezimbobeni ezingu-64 kuye kwezingu-128 nokuningi. Isebenzisa ukuxhumana okubanzi kakhulu kwangaphakathi ukuhambisa amafreyimu edatha anomkhawulokudonsa omkhulu. Inhloso yokusebenzisa leziamaswishiukwakha inethiwekhi enkulu yokuhlanganisa nokuhlinzeka ngomkhawulokudonsa omkhulu. Zenzelwe ukuhambisa amasiginali wozimele ngokushesha okukhulu phakathi kwezimbobo eziningi ezinokulibaziseka okufushane kakhulu. Ngaphezu kwalokho, ama-core fiber switch avame ukusebenzisa amabhodi esekethe ashintshwayo ashintshwayo asekelwe “kuhlobo lweblade”: inqobo nje umashintshaibhodi lifakwa kwikhabhinethi, imisebenzi emisha ingengezwa, nokugcinwa kwe-inthanethi nakho kungenziwa. Idinga ukunwetshwa. Amaswishi amaningi ezinga eliyinhloko awasekeli amalophu ane-arbitrated noma amanye amadivayisi axhumeke ngokuqondile. Bakhathalela kuphela amakhono ayisisekelo okushintsha. Ngenxa yokuthi ukutholakala kubaluleke kakhulu endaweni yonke, abantu bazimisele ukuchitha imali eningi ekuqedeni umsebenzi. Zonke izingxenye ze-high-redundancyamaswishiazidingeki, okuqeda ngokuphelele ukwehluleka okukodwa futhi kuqinisekisa i-Uptime yesikhathi eside. Lezi zindleko zokuphinda zisetshenziswe ngokuvamile zisetshenziselwa izindiza ezibuyela emuva ezitholakala kakhulu, izinsiza zikagesi, amasekhethi angasasebenzi, kanye nesofthiwe ukuze kugcinwe ukutholakala. Lolu hlobo lweshintshainamasekhethi amaningi akhelwe ngaphakathi ukuze aphathe ukwehluleka kwehadiwe ngaphakathishintsha. Umnyomboamaswishiku-fiber opticamaswishihlinzeka ngokuthembeka okuphezulu nokuminyana kwembobo. Esikhungweni sedatha esinenani elikhulu lengqalasizinda ye-Fiber Channel, imikhiqizo enjalo cishe ayinabungozi, amaswishi esitoreji aphakathi nendawo. Ngakho-ke, kumanethiwekhi amaningi atholakala kakhulu, kufanele ukhethe inethiwekhi eneziteshi ezimbili eyakhiwe amaswishi e-fiber eyinhloko.
2.i-fiber optic yezinga le-workgroupamaswishi
Ukushintsha kwe-Fiber optic kunikeza amandla okukhipha abaningiamaswishiibe Indwangu enkulu. Ngokuxhuma imbobo eyodwa noma amaningi amaswishi amabili, zonke izimbobo zixhunywe ku-shintshaangabona isithombe esiyingqayizivele senethiwekhi, futhi noma iyiphi i-node kule ndwangu ingaxhumana namanye ama-node. Ngokushintsha kwe-cascading, enkulu, ebonakalayo, esakazwayoshintshaingasungulwa, futhi ibanga elingalithatha likhulu kakhulu. Indwangu eyakhiwe ngokushintshashintsha okuningi ibonakala njengendwangu ehlanganiswe nokushintshashintsha okuhlukene. Amachweba kuwo wonkeamaswishiingabukwa futhi ifinyelelwe njengawo wonke amanye amachweba endwangu njengokufinyelela ekushintsheni kwendawo. Iseva yegama elihlanganisiwe kanye nensizakalo yokuphatha ivumela ukubuka nokulungisa yonke imininingwane Yendwangu ngokusebenzisa isixhumi esibonakalayo esisodwa. Isici esibalulekile ekudaleni indwangu esabalalisiwe ukuthola umkhawulokudonsa wokuxhumana phakathi kweamaswishi. Izinga elisebenzayo phakathi kwanoma yiziphi izimbobo ezimbili lithintwa umkhawulokudonsa osebenzayo woxhumano phakathi kweamaswishi, futhi kungase kudingeke ukuthi kusetshenziswe ukuxhumana okuningi phakathi kwamaswishi ukuze kugcinwe umkhawulokudonsa odingekayo. Amaswishi e-Workgroup Fiber Channel maningi futhi ahlukahlukene. Iqembu lomsebenziamaswishiasetshenziswa ngezindlela eziningi, kodwa indawo esetshenziswa kakhulu yi-SAN encane. Ukushintsha okunjalo kungaxhunywa ndawonye ngemigqa yokuxhuma phakathi kwamaswishi ukuze kuhlinzekwe ngezimbobo ezengeziwe. Imigqa yokuxhumana phakathi kwamaswishi ingadalwa kunoma iyiphi imbobo ku-Fiber Channelshintsha. Kodwa-ke, uma uhlela ukusebenzisa imikhiqizo evela kubathengisi abaningi, kufanele uqinisekise ukuthi amadivayisi ayasebenzisana.
3.izinga lokungenaamaswishi
Ukusetshenziswa kokushintsha kwezinga lokungena ku-fiber opticamaswishiigxile kakhulu emaqenjini amancane asebenzayo anamachweba ayi-8 kuye kwayi-16. Ilungele izikhathi ezinamanani aphansi nesidingo esincane sokunwetshwa nokuphathwa. Avame ukusetshenziselwa ukufaka esikhundleni samahabhu, anganikeza umkhawulokudonsa ophezulu futhi anikeze ukuxhumana okuthembekile kunamahabhu. Abantu ngokuvamile abalithengi izinga lokungenaamaswishingokwehlukana, kodwa ngokuvamile uwathenge kanye namanye amazinga okushintshwa ukuze enze isisombululo esiphelele sokulondoloza. Amaswishi e-fiber optic yeleveli yokungena ahlinzeka ngezinga elilinganiselwe lamakhono okukhipha imbobo. Uma abasebenzisi basebenzisa amadivayisi anesimo esiphansi kuphela, bangase bahlangabezane nezinkinga ezithile zokuphatha.