Mawu akuti SAN mu makina ochezera makompyuta amatha kufotokozera malo osungirako malo osungirako malonda koma angathenso kutanthauzira malo ochezera.
Malo osungirako malo ndi mtundu wa malo ozungulira (LAN) okonzedwa kuti athetse kusamutsidwa kwakukulu kwa deta komanso kusungidwa kwambiri kwa ma digito. A SAN imathandizira kusungirako deta, kubwezeretsa ndi kubwereza pazinthu zamalonda pogwiritsa ntchito mapulogalamu otsiriza, multiple disk arrays ndi interconnect technology.
Mapulogalamu osungirako zosungirako ntchito amagwira mosiyana kusiyana ndi makina othandizira otumizirana makasitomala chifukwa chapadera za ntchito zawo. Mwachitsanzo, makompyuta a kunyumba amagwiritsa ntchito ogwiritsa ntchito pa intaneti, zomwe zimaphatikizapo kuchuluka kwa deta zomwe zimayambitsa nthawi zosiyanasiyana, ndipo zimatha kubwezera zopempha ngati zitayika. Zosungirako zosungirako zosungirako, poyerekezera, ziyenera kuthana ndi deta yochuluka kwambiri yopangidwa ndi zopempha zambiri ndipo sangathe kutaya deta iliyonse.
Malo osungirako maofesiwa ndi gulu la makompyuta apamwamba omwe amagwiritsidwa ntchito pogawidwa ntchito zogwirira ntchito zomwe zimafuna kuti maofesiwa azigwira ntchito mofulumira kuti athandizidwe kuwerengerana ndikugwiritsidwa ntchito kwa ogwiritsa ntchito kunja.
Fiber Channel vs. iSCSI
Maofesi awiri opangira mauthenga okhudzana ndi kusungirako mafakitale - Fiber Channel ndi Intaneti ya Small Computer Systems Interface (iSCSI) - zonsezi zagwiritsidwa ntchito kwambiri ku SAN komanso zimakondana kwa zaka zambiri.
Fiber Channel (FC) inasankhidwa kuti azitha kugwiritsa ntchito mawebusaiti a SAN pakati pa zaka za m'ma 1990. Zipangizo za Traditional Fiber Channel zili ndi zipangizo zamakono zotchedwa Fiber Channel switches zomwe zimagwirizanitsa zosungirako ku SAN plus Fiber Channel adapatsa mabomba omwe amagwirizanitsa makasitomala a seva. Kugwirizana kwa FC kumapereka chiwerengero cha deta pakati pa 1 Gbps ndi 16 Gbps.
iSCSI inalengedwa ngati mtengo wotsika, ntchito yochepa yosiyana ndi Fiber Channel ndipo inayamba kukulirakulira pakati pa zaka za 2000. iSCSI imagwira ntchito ndi kusintha kwa Ethernet ndi kugwirizana kwaumwini mmalo mwa hardware yapadera yomwe imangidwira makamaka ntchito yosungirako katundu. Amapereka chiwerengero cha ma Gbps 10 ndi apamwamba.
SCSI akudandaula makamaka kwa makampani ang'onoang'ono omwe nthawi zambiri alibe antchito omwe amaphunzitsidwa mu kayendedwe ka Fiber Channel technology. Komabe, mabungwe omwe kale akupezeka mu Fiber Channel kuchokera ku mbiriyakale sangakhale okakamizidwa kuti atchule iSCSI kumalo awo. Fomu ya FBL yotchedwa Fiber Channel pa Ethernet (FCoE) inakonzedwa kuti ichepetse mtengo wa njira za FC pochotsa kufunika kogula zipangizo za HBA. Osati mautumiki onse a Ethernet amathandiza FCoE, komabe.
SAN Products
Odziwika bwino omwe amagwiritsa ntchito makina ochezera a pa Intaneti akuphatikizapo EMC, HP, IBM, ndi Brocade. Kuwonjezera pa kusintha kwa FC ndi ma HBA, ogulitsa amaligulitsanso malo osungirako zinthu ndi malo ochezera adiresi. Mtengo wa zipangizo za SAN ukuchokera ku madola mazana angapo mpaka masauzande.
SAN vs. NAS
Sinema yamakono ndi yofanana koma yosiyana ndi makina osungira (NAS). Ngakhale kuti SAS amagwiritsira ntchito njira zamakono zotetezera ma diski, mawonekedwe a NAS amagwira ntchito pamwamba pa TCP / IP ndipo akhoza kuphatikizidwa mosavuta kumakompyuta a makompyuta kunyumba .