SAS-amavili: uphawulo, inkcazelo, iimpawu zobugcisa device

Ukuthenga afanayo okanye iseva ukuba ukugcina ulwazi, siyayeka phambi ndikhethe ntoni uhlobo hard drive efakiweyo. Ethandwa kakhulu zezi ntlobo zilandelayo nzima drives: SAS, wada wabiliswa uphela kunye NL-COSAS. Ezi iintlobo ezintathu kwakucingwa ukuba eendaba fastest yokugcina, baqhubeka inkoliso data ehlabathini. Inqaku lethu ugxile kudidi lokuqala. Siye sijonge ukuba yintoni na SAS-drives, kwakunye parameters zabo, kwaye yintoni umahluko phakathi kweentlobo ezisisiseko ezi zixhobo.

iimpawu technical

SAS-amavili indawo SCSI-uhlobo. Baye baba umgangatho entsha inkcazelo yokugcina kwishishini-class. Iintlobo ezintathu SAS-drives zigqalwa kakhulu linokuthenjwa, bayakwazi ukugcina ukusebenza ngendlela iimeko ezinzima kakhulu yokusebenza. SAS drives ukwenza uhlobo drives ngcono kakhulu NL okanye wada wabiliswa uphela. Isalathisi limi ukuthembeka parameter ezifana rate imposiso bit. It igqiba indlela ekusenokwenzeka ukuba impazamo enye bit zingenzeka kwi data eendaba. Izinga kwemposiso ye uhlobo SAS HDD ongowona iyunithi 10 ¹⁶ ziintanda. Oko kukuthi, oko kuthetha ukuba amathuba yemposiso kunokwenzeka abe mnye kwabalishumi quadrillion ziintanda. Ngokomzekelo, singakwazi bathelekise umlinganiselo kunye iyimposiso kwi wada wabiliswa uphela uhlobo hard diski, apho yenye 10 ¹⁵ (okanye omnye quadrillion). Njengoko sibonile, ukhuselo wada wabiliswa uphela-HDD naye kakhulu eziphakamileyo, Noko ke, xa kukho umbuzo malunga kukhuseleko lwe-data egcinwe, umahluko umyalelo omnye ibalulekile kakhulu.

SAS-amavili eziveliswa ngokubambelela kwimilinganiselo engqongqo ngaphezu kuphuhliso kwezinye iindidi drives. Ngoko ke, lo bugcisa luphawulwa koko phakathi leempumelelo, ka-1.6 yezigidi iiyure kunye wada wabiliswa uphela-Technology - 1.2 million. Ukongeza kwezi parameters, nabaqondisi kunye aqhube eli hlobo babe imiyalelo ezininzi ukuthi zenzelwe uxilongo. Ezi mpawu zenza obu bugcisa kakuhle ngaphezu wada wabiliswa uphela. Oku kubonakala kakhulu kwiimeko amandla majeure.

NL-drives

Lo bugcisa i "umdlali omtsha" ezivenkileni. NL-amavili hybrid: wada wabiliswa uphela-HDD kunye SAS uhlobo isinxibelelanisi. Oko kukuthi, isantya kunye nentloko nokuzaliswa waluthathayo wada wabiliswa uphela-technology, kwaye esibonakalayo isebenzisane ngokupheleleyo SAS. NL-technology ingqalelo kuhlelo enasilela yokusebenza (ngenxa isantya ojikeleza ngaso ephantsi kakhulu). Noko ke, loo nto iyavumelana ngokupheleleyo nabo ngokomyalelo amaqela, kwakunye multi-ngqo kunye nenkxaso wemikhosi ezininzi.

Tagirovannaya umyalelo ngokuthumela imiyalelo kunye multi-ustrimisho

Ngaxeshanye kulungelelanisa iiseti ezininzi yokugcina yoxwebhu, kanye isilawuli yokugcina ulwazi wayalela isasazeka kakhulu ngokufanelekileyo. SAS-technology ubonelela iindlela eziliqela ngokupheleleyo-kabini lwe data, nezinika unikezelo olukhawulezayo kulwazi olugcinwe. Enye hard drive SAS-uhlobo ungalawuleka ukusuka iiPC eziliqela ngaphandle kokusebenzisa eyenziwayo.

isiphelo

Enyanisweni, ubugcisa SAS kunye wada wabiliswa uphela zilungiselelwe iinjongo ezahlukeneyo: kuqala nandzu unyamezelwano kunye nokusebenza, kwaye eyesibini - ukuqinisekisa iziqulathi. Ngoko ke musa ukuba bakhuphisane.