I-LAN ne-SAN zimelela Inethiwekhi Yendawo Yendawo kanye Nenethiwekhi Yendawo Yesitoreji, ngokulandelana, futhi womabili amasistimu okuxhumana esitoreji asetshenziswa kabanzi namuhla.
I-LAN iqoqo lamakhompuyutha nama-peripherals abelana ngesixhumanisi sokuxhumana esinezintambo noma esingenantambo kumaseva atholakala ezindaweni ezahlukahlukene. I-SAN kunethiwekhi, ngakolunye uhlangothi, ihlinzeka ngoxhumano lwejubane eliphezulu futhi yakhelwe amanethiwekhi ayimfihlo, okuvumela ukuxhumana okungenazihibe kwamaseva amaningi anezinhlobonhlobo zemishini yokugcina okwabelwana ngayo.
Kanjalo, izingxenye ezimbili ezibalulekile ezisetshenziswa kumlingani wenethiwekhi yekhompyutha amaswishi e-LAN namaswishi e-SAN. Nakuba amaswishi e-LAN namaswishi e-SAN kuyiziteshi zombili zokuxhumana kwedatha, anomehluko othile, ngakho ake sibhekisise ngezansi.
1 Kuyini ukushintsha kwe-LAN?
Ukushintsha i-LAN kuyindlela yokushintsha iphakethe esetshenziselwa ukudlulisa amaphakethe phakathi kwamakhompyutha ku-LAN ngaphakathi kwenethiwekhi yendawo. Le nqubo idlala indima ebalulekile ekwakhiweni kwenethiwekhi futhi ingathuthukisa kakhulu ukusebenza kahle kwe-LAN futhi yehlise izithiyo zomkhawulokudonsa. Kunezinhlobo ezine zokushintshwa kwe-LAN:
I-MLS yokushintsha i-MLS;
Ungqimba 4 ukushintsha;
Ungqimba 3 ukushintsha;
Ukushintshwa kwesendlalelo sesi-2.
Ngabe switch ye-LAN isebenza kanjani?
Iswishi ye-LAN iyiswishi ye-Ethernet esebenza ngokususelwe kuphrothokholi ye-IP futhi inikeza ukuxhumana okuvumelana nezimo phakathi kwabathumeli nabamukeli ngenethiwekhi exhumene yezimbobo nezixhumanisi. Lolu hlelo luvumela inombolo enkulu yabasebenzisi bokugcina ukwabelana ngezinsiza zenethiwekhi. Amaswishi e-LAN asebenza njengamaswishi ephakethe futhi angaphatha ukudluliswa kwedatha eminingi ngesikhathi esisodwa. Benza lokhu ngokuhlola ikheli lendawo yohlaka lwedatha ngalunye futhi baliqondise ngokushesha endaweni ethile ehlotshaniswa nedivayisi yokwamukela ehlosiwe.
Indima eyinhloko yeswishi ye-LAN iwukufeza izidingo zeqembu labasebenzisi ukuze bakwazi ukufinyelela ngokuhlanganyela izinsiza ezabiwe futhi baxhumane ngaphandle komthungo. Ngokusebenzisa amandla okushintsha kwe-LAN, ingxenye enkulu yethrafikhi yenethiwekhi ingatholakala kumasegimenti e-LAN ahlangene. Lokhu kuhlukaniswa kunciphisa ngempumelelo ukuminyana kwe-LAN, okuholela ekudluliselweni kwedatha okushelelayo nokusebenza kwenethiwekhi.
2 Kuyini ukushintsha kwe-SAN?
Inethiwekhi Yendawo Yesitoreji Ukushintsha i-SAN kuyindlela ekhethekile yokudala ukuxhumana phakathi kwamaseva namachibi okwabelwana ngawo kuphela ukuze kube lula ukudluliswa kwedatha ehlobene nesitoreji.
Ngokushintsha kwe-SAN, kuyenzeka ukuthi kwakhiwe amanethiwekhi okugcina amakhulu, anesivinini esikhulu axhuma amaseva amaningi futhi afinyelele amanani amakhulu edatha, ngokuvamile afinyelela kuma-petabytes. Ekusebenzeni kwabo okuyisisekelo, amaswishi e-SAN axhumanisa ngempumelelo ithrafikhi phakathi kwamaseva nemishini yokugcina ngokuhlola amaphakethe futhi awaqondise ezindaweni ezinqunywe kusengaphambili. Ngokuhamba kwesikhathi, amaswishi esitoreji senethiwekhi athuthukile ukuze afake izici ezithuthukile njengokushoda kwendlela, ukuxilonga inethiwekhi, nokuzwa komkhawulokudonsa okuzenzakalelayo.
Asebenza kanjani amaswishi eFiber Channel?
Ukushintsha kwe-Fiber Channel kuyingxenye eyinhloko kunethiwekhi yendawo yokugcina i-SAN esiza ukudlulisa idatha kahle phakathi kwamaseva nemishini yokugcina. Iswishi isebenza ngokudala inethiwekhi yangasese enesivinini esiphezulu edizayinelwe ukugcinwa kwedatha nokubuyiswa.
Emgogodleni wayo, ukushintshwa kwe-Fiber Channel kuncike kuzingxenyekazi zekhompuyutha ezikhethekile nesofthiwe ukuze ulawule futhi uqondise ithrafikhi yedatha. Isebenzisa umthetho olandelwayo we-Fiber Channel, iphrothokholi yokuxhumana eqinile nethembekile eyenzelwe izindawo ze-SAN. Njengoba idatha ithunyelwa isuka kuseva iye kudivayisi yokugcina futhi ngokuphambene nalokho, ifakwe kumafreyimu e-Fiber Channel, iqinisekisa ubuqotho bedatha kanye nokudluliswa kwesivinini esikhulu.
I-SAN switch isebenza njengephoyisa lomgwaqo futhi inquma indlela engcono kakhulu yokwaziswa okungahamba ngayo nge-SAN. Ihlola umthombo nekheli lendawo kumafreyimu e-Fiber Channel ukuze kuhanjiswe umzila ophumelelayo wamaphakethe. Le ndlela ehlakaniphile inciphisa ukubambezeleka nokuminyana, iqinisekisa ukuthi idatha ifinyelela lapho iya khona ngokushesha nangokuthembekile.
Empeleni, i-Fiber Channel iyashintsha ihlela ukuhamba kwedatha ku-SAN, ithuthukisa ukusebenza nokuthembeka ezindaweni ezidinga idatha.
3 Bahluke kanjani?
Ukuqhathanisa iswishi ye-LAN neswishi ye-SAN kungabuye kucatshangwe njengokuqhathanisa iswishi ye-SAN neswitch yenethiwekhi, noma ukushintsha kwe-Fiber Channel kuswishi ye-Ethernet. Ake sibheke umehluko omkhulu phakathi kokushintsha kwe-LAN namaswishi e-SAN.
Umehluko Wohlelo
Amaswishi e-LAN ekuqaleni ayedizayinelwe indandatho yamathokheni namanethiwekhi e-FDDI futhi kamuva athathelwa indawo yi-Ethernet. Ukushintsha kwe-LAN kudlala indima ebalulekile ekuthuthukiseni ukusebenza kahle kukonke kwama-LAN kanye nokuxazulula izinselele ezikhona zomkhawulokudonsa. Ama-LAN angakwazi ukuxhuma kalula kumadivayisi ahlukahlukene njengamaseva wefayela, amaphrinta, izinhlu zesitoreji, amadeskithophu, njll., namaswishi e-LAN angaphatha ngempumelelo ithrafikhi phakathi kwalezi zindawo zokugcina ezihlukene.
Futhi i-SAN switch yakhelwe amanethiwekhi asebenza kahle kakhulu ukuze kuqinisekiswe ukubambezeleka okuphansi nokudluliswa kwedatha okungalahleki. Iklanywe ngokucophelela ukuphatha ngempumelelo imithwalo esindayo yokwenziwe, ikakhulukazi kumanethiwekhi eFiber Channel asebenza kahle kakhulu. Kungakhathaliseki ukuthi i-Ethernet noma i-Fiber Channel, amaswishi enethiwekhi yendawo yesitoreji anikezelwe futhi athuthukiswa ukuze kuphathwe ithrafikhi yesitoreji.
Umehluko Wokusebenza
Ngokuvamile, ukushintsha kwe-LAN kusebenzisa ithusi nefiber interfaces futhi kusebenza kumanethiwekhi e-Ethernet asekelwe ku-IP. Ukushintsha kwe-Layer 2 LAN kunikeza izinzuzo zokudluliswa kwedatha okusheshayo kanye nokubambezeleka okuncane.
Ihamba phambili ezicini ezifana ne-VoIP, QoS kanye nokubika komkhawulokudonsa. Ukushintsha kwe-Layer 3 LAN kunikeza izici ezifanayo njengamarutha. Ngokuqondene ne-Layer 4 LAN Switch, inguqulo ethuthukisiwe ye-Layer 3 LAN Switch enikeza izinhlelo zokusebenza ezengeziwe ezifana ne-Telnet ne-FTP.Ngaphezu kwalokho, i-LAN Switch isekela izimiso eziyisisekelo ezihlanganisa kodwa ezingagcini nje ku-SNMP, DHCP, Apple Talk, TCP. /IP, kanye ne-IPX. Sekukonke, i-LAN Switch iyisixazululo esingabizi kakhulu, esisebenziseka kalula esilungele ibhizinisi kanye nezidingo zokuxhumana ezithuthukile.
Amaswishi e-SAN akhela phezu kwesisekelo samanethiwekhi okugcina e-iSCSI, ahlanganisa i-Fiber Channel kanye nobuchwepheshe be-iSCSI. Isici esibaluleke kakhulu ukuthi amaswishi e-SAN anikezela ngamakhono okugcina aphakeme kunokushintsha kwe-LAN. Amaswishi e-Fiber Channel nawo angaba amaswishi e-Ethernet.
Ngokufanelekile, ukushintshwa kwe-SAN okusekelwe ku-Ethernet kuzonikezelwa ekulawuleni ithrafikhi yesitoreji ngaphakathi kwenethiwekhi yendawo yokugcina i-IP, ngaleyo ndlela kuqinisekiswe ukusebenza okubikezelwe. Futhi, ngokuxhuma amaswishi e-SAN, inethiwekhi ebanzi ye-SAN ingakhiwa ukuze kuxhunywe amaseva amaningi nezimbobo zokugcina.
4 Ngingayikhetha kanjani iswishi efanele?
Uma ucabangela i-LAN vs. SAN, ukukhetha iswishi ye-LAN noma iswishi ye-SAN kuba bucayi. Uma izidingo zakho zifaka izivumelwano zokwabelana ngefayela njenge-IPX noma i-AppleTalk, khona-ke ukushintsha kwe-LAN okusekelwe ku-IP kuyisinqumo esingcono kakhulu sedivayisi yokugcina. Ngokuphambene, uma udinga ukushintshwa ukuze usekele isitoreji esisekelwe ku-Fiber Channel, kunconywa ukushintsha kwendawo yokugcina inethiwekhi.
Amaswishi e-LAN asiza ukuxhumana phakathi kwe-LAN ngokuxhuma amadivayisi kunethiwekhi efanayo.
Ngakolunye uhlangothi, amaswishi e-Fiber Channel, asetshenziswa ngokuyinhloko ukuxhuma amadivaysi okulondoloza kumaseva ukuze agcinwe kahle futhi athole idatha. Lezi zinguquko ziyahlukahluka ngezindleko, ukukala, i-topology, ukuphepha, namandla okugcina. Ukukhetha phakathi kwabo kuncike ezidingweni ezithile zokusebenzisa.
Amaswishi e-LAN awabizi futhi kulula ukuwalungiselela, kuyilapho amaswishi e-SAN emba eqolo futhi adinga ukucupha okuyinkimbinkimbi.
Ngamafuphi, ukushintsha kwe-LAN kanye nokushintsha kwe-SAN kuyizinhlobo ezahlukene zokushintsha kwenethiwekhi, ngayinye idlala indima eyingqayizivele kunethiwekhi.
Isikhathi sokuthumela: Oct-17-2024