I-Enterprise Server Storage Hard Disks: Iqondo lokugcinwa kwezinyezi, Izisombululo eziphambili lokugcinwa kwedatha

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Iphepha Lesi

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isidiski esikhulu sokugcinwa kwe-server

Isikhombisi se-diski yekhatholo leseva sigcizelela uhlobo oluphambene kakhulu lokuqondisa imvelaphi yesicelo esididiweyo, elidilizwa ngokukhawuleza ukugcinwa kwemali kwiindlela ezinhlekileyo. Le ndrives ezinhlelweyo zidilizwa ukuze zenze amapherphormensi, ukuthembekwa nokubusa okukhulu kuzo zonke izimo eziphambenayo. Ngokuhluka kwezinhloso zasekhaya, izikhombisi zekhatholo leseva zinezici zobuchulethela okuhle, ukwetha okungcono kuvibration nezici zobuchulethela zokwenza umsebenzi. Zisebenza ngokudlulula kuzo i-RAID configurations, zinikeza ukubuyiswa fanye nokugcinwa kwedatha okudingekayo kusiselo sesikoleni. Izikhombisi zibeke amaspeyithi we-RPM aphakathi kwe-7200 kuya ku-15000 RPM, ukuze kutholwe ukufinyelela kuye kwaye ukuguqula amadatha ngokushesha. Kakhulu izikhombisi zekhatholo leseva zifaka phakathi teknolojiyo zezinhloso zokugcinwa, ukunquma isimo sokuqala kokuphula noma ukuthola ukuphulwa okungqinelwa (MTBF). Le ndrives fanelo ethola amaqoqo ngezici ezinhlelweyo nezindlela zokusebenzela ezinhlelweyo kusiselo sesewa, kuxokela i-queue yocingo ngeyodwa nezindlela zokulungisa iphulo. Ngenkimbini aphakathi kwezinye izigigaba kuya kwezinye izihlanu zesi-Gigabyte, le ndrives ithola ukugcinwa kwezimali ezinkulu ngelixa ethola amapherphormensi angcono. Lidelelwa ngokukhawuleza ukuthola amapheto amaningi asimultaneous noma amaload yokusebenza anengiyo kuzo zonke izimo zesewa, lokhu kwenza yinto engalawanga kusiselo sesicelo, ikhonkco lokugcinwa kwezimali noma ukusebenzela kwezinhloso zokugcinwa.

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Izidiski zokugcinwa kwesewer ithinthe amanye amathinteko akhulisa okwenzeka ngokweqile kuzindlela zokusebenza kwamakhemikhale. Okokuqala, lezi disk zinikeza ukusebenza okuphezulu ngokuthi zenze izinhlelo ezifanelekileyo nezicwangciso eziphambene nokweba komshumo, okwenza umrholo wokulahla idatha nokuhluka kwesistimu. Izingxenye zabo ezibonakalayo zilandela ukungcola okuphezulu kanye nokuhlelwa kwezindlela zokunqanda, okuvinjelwe ukusebenza okuphezulu noma kuzindlela zokushisa. Izicwangciso zokukhiqiza kwezinhlelo zokusebenza kanye nezivivinyo ezijwayelekileyo zenza ukuthi kube nenhlalo elide, okwenza umthelela kabili wokubola. Ngenxa yokusebenza, izidiski zokusebenza kahle ekujikeleni izicelo eziningi ngasinye, zinezihlanganisiwe ezithuthukiswe fanye nezinhlelo zokugcina idatha okungenhla. Izilayini zabo ezine-rotational speed phezulu nezinhlelo zokufinyelela ezithuthukiswe zenze ukufinyelela idatha okusheshayo, okwenza ukusebenza kwe sistimu yonke kube kahle. Lezi disk zinikeza amathulelo akhona weqile yokuphatha amandla, nezinhlelo eziqukethwe okungenhla ukuphakama phakathi kweqile yokusebenza nemiphumela yamandla. Ukuthi kunezinhlelo zokuvakashela fanye nezinhlelo zokulandela idatha zenze ukuthi kube khona ukuhlinzeka ngaphambili, okuyenze ukuthi kungakhathali ukulahla kanye nokuphila kweqile kweqhina. Ukuthi kutholakale nezinhlelo zokugcinwa kwedatha kanye nezinhlelo zokuxazulula (RAID) zenze ukuthi kube khona amatholakale akhona olunqo lweqile. Izicelo eziphezulu zabo zokugcinwa kanye nezinhlelo zokusebenza zenze ukuthi idatha ibe yinani eliphezulu kuzinhlelo zokusebenza. Ukuthi kutholakale ukusebenzisa kahle kwezinto ezisheshayo kanye nezinhlelo zokuphatha kweqile zenze ukuthi kube khona ukulawulwa kahle kwezinto kanye nokuphatha kweqile kweqhina.

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isidiski esikhulu sokugcinwa kwe-server

abasunguli bokhombisa isidiski esikhulu

abasebenzisa isikweletu se-hard disk drive

ukulungisa isithuthi se-hard disk

ubukhokho bokugcina i-hard disk drive

ukulinganisa ubukhwebo bokugcina i-hard disk drive

ukugcinwa kwe-diski enkulu

Ukubuyelelwa kanye nokwenene kwezinhloso zasekhaya

Izidiski zokugcinwa kweziseva zidaliwe ngokuthi zenziwe ngezindlela zokuhlanza okuphakeme kahle ukuthi zingaphansi kwezidiski ezisetyenziswa yabantu. Le zidiski ziphumelelwa kwiimvavanyo neentlobo ezinkimbinkimbi ukuqinisekisa ukuba zifake isicelo esikhundleni saseva. Ukubulawa okuningi kuphumelelwa ngokuzivulekela iikompophonthe eziphathwayo zokusebenza ngokuvumelanisiyo, kunye neemoto enkimbinkimbi kunye neendawo zokuhlala ezibonisa ukunciphisa ukutshelwa kanye nokucindezela. Le zidiski zenze ifayile yokuhlanganisa nokulungisa amaplaya apho ahlala uyila kwaye abaleke intetho. Iinkorporationo zawo zokubulawa kuneenkinobho ezongeziweyo kunye neenzabo zokuhlala ezithintayo ukulusebenza kwamandla kwiindawo zedatha. Kwenzekwa kwayo uhlobo lwenkulunkulu lwesibi lokuqala ukuvumela abasebenzisi baseva ukuba bafix yenye into engenakwenzeka ngaphambi kokuba isidiski ingijele, ukuqinisekisa ukuba kuyona yonke into efikelela kwaye idatha iyafumaneka.

Ukudizayna Okuthuthake Isisebenzi

Ukucwangcwa kwezinhawu zokugcinwa kwamaphela yezivikeleza kuyadingeka ukwenziwa ngokuthi kube nemisebenzi yokusebenza kwamakhompiyitha. Lezi zinhawu zinezinhlelo zokuphatha izikhombisa ezingcono okuholela kulethu kwezinyathelo, zokunciphisa ibalansi futhi zokuthuthukisa inkimbinkimbi yesistimu. Ukusebenzisa umsebenzi wokulayisha amavoko owabona ngokuzenzekela kuvumela ukubuyiselwa ngokwembono komsebenzi ukuze kuthuthukiswe ukuguqula futhi kunqatshelwe ukusebenza okungcono. Lezi zinhawu zasekhaya nazo izinhliziyo ezithunyelwe kuzindlela zobudlelwane obuningi, zokuthuthukisa ukusebenza ngokuphelelwe lapho kusebenzwa ngokuqondile. Izinga eliphezulu le-rotation nezinhliziyo ezithunyelwe kuholela kufinye kwezinyathelo, nangoba izikhombisa ezincane zanciphisa ukubonakala nokuthenjelwa kwezinhawu. Le nkco yoqobo kuyakuvumela lezi zinhawu ukuba nezindawo eziphezulu zokusebenza ngelokho lapho kusebenzelwa ngamanje amanani amaningi we-read no-write esistimweni sezikhalazo.

Izimpawu Zokulungiswa Kwedatha Ngokugcwele

Izidiski zokugcinwa kwe-server zifaka phakathi izinkomba zokuphepha idatha ezikhathazeka kakhulu. Lezi zinkomba uyafaka phakathi i-advanced error correction codes (ECC) esingqumayo futhu ekulungiseni idatha ephanyekileyo ngemizuzwana, ukuze idatha ithinteke ngokuphumelelayo lapho kufundwa noma kubhalwa. Izidrive zinezinkomba zokuphepha kwevulekile okuphela ukungcola idatha lapho kukhishwa amandla ngendlela engaziwa ngemuva kokuba kuhlanganise imisebenzi yekubhala. Ukuphepha okungenhla kuyinhloko kuvikiswa ngokushintshwa kwezitechnolojia zokubhaliwa ezinemigqa yokuthi idatha iyasebenza ngendlela ethile lapho kunezimo eziphantsi. Izidrive zasebenza nezinkomba zokubamba futhu ukuvikela idatha, uyafaka phakathi izithombe ezithile zokukopisha idatha futhu ukuvikela amavulelo. Ukuze kuthunyelwe kahle kwezindlela zokupepetsha RAID, lezi zidrive zinamathuba amaningi wokubamba idatha, futhu ukusebenza kwazo ukuthi ikhutshelwe izidrive ngaphandle kokuthintana nokusebenza komsindo.