Izinhlayiya Zokugcina SAS Ezinhloko: Izisindo Sokugcina Esiphephile Sokusebenzwa Kwezindlela Ezingcono

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Iphepha Lesi

Izinkomo

Ngiyabuzisa

Iphutha

Vumela Nethu

isikweletu se-sas hard disk drive

I-SAS (Serial Attached SCSI) ikhadi le-hard disk ibonisa ukuphumelela kwezinhlanzi zokusebenza ngaphandle kwezinhlanzi, nekunikeza inkwabi yokuhlanganisa izinto ezihlukene. Le khadi usebenzisa umxholo we-serial connection, okunikeza amathemu apida kakhulu nokuthula okuningi kunazo ezindaweni eziphandakanyayo. Khadi le-SAS zisebenza ngemigqa yezindleko ezingama-10,000 noma 15,000 RPM, zinikeza imiphumo emikhulu kuzindleko zokusebenza. Lo mxholo uphakelwa kwi-port elibekiwe, okuvumela ukuba kube nenxa ye-path redundant eyisendvini sakho sokugcinwa kwezinto futhi ubenze ukuthi idatha iyashidalwa ngokuphelele. Izinhlanzi zika-SAS ziyagcina kahle kuzindleko zokubala okuphambene (IOPS), okuyakunceda kuzinhlanzi zedatha, izinhlanzi zokungeniswa, nezindleko eziphilayo. Zinezinhlelo yokuthola nokulungisa amathiphu, njengoba nezinhlelo zokuphepha okuvikela idatha esobala. Lo mxholo unesivumelwano sokuthatha khadi ngesikhathi esifanele, okuvumela ukubuya kwaleli khadi ngaphandle kokuthintana nesikhathi esingcono. Le khadi nayo inesivumelwano sokuthuthukisa ngaphandle kwezinhlanzi ze-SAS, okuvumela abasebenzisi ukuthuthukisa inkampani yakho ngokuthuthukisa indawo yokugcinwa kwezinto bese kuthuthukile imiphumo.

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Izinhawu zokugcina SAS zinikeza izimpawu eziningi ezingcono lapho kuzochagwa yizinhawu zokugcina zemiphakathi yesikrini. Impumelelo ekuqaleni kukhona kwezinye izinkomba zokusebenza, ngokuvamile zinikeza izindleko eziphezulu zokushiphaya idatha nokufinyelela k быстрее kunazo zinhawu ezijwayelekile. Isakhiwo sababili bethenye amadoti asetena ukusebenza ngokuphelele noma uma ubudlelwane obunye bethenye bhuka, okungenzeka ukuthintana kwesistimu. Lezi zinhawu zidilithelwe ukusebenza ngokuphelele 24/7, nezilinganiso zokulingana (MTBF) zinezikhathi ezingama-1.5 milione, zinikeza ukubambisana okuningi kumasevisi esenzakalweni. I-interface ye-SAS ikhansela ukuxhumana okuphelele, ekuvumela ukushiphaya idatha ngokwesibini esicatheni, okungahleli kakhulu ukusebenza kwe sistimu. Abasebenzisi besikrini banelisekelo lezi zinhawu zokulayisha imiyalo, okuhlanganisa iphando lokufinyelela idatha ukuze kube nepemphogakazi. Imicubheko yokukhipha amaphoyinti nemigomo engenayo edatweni yenziwa idatha ingachithwa, ake ukusebenza komoya ohlangothini kunciphisa ukuthintana kwezixhumi. Izinhawu ze-SAS zifisela kakhulu kumakhweli, zikhangela ukuthi kuthunyelwe ngokuchanekile ngokuthandwayo abangaphezulu bezi zinhawu. Iziphumo zakho ezijwayelekile nezokulula zomsebenzi zenza ukuba yisipho esihle kumasepula afuyezela kakhulu nezosebenzelo eziphezulu.

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isikweletu se-sas hard disk drive

abasebenzisa isikweletu se-hard disk drive

ubukhokho bokugcina i-hard disk drive

incwadi yokufaka idiski eqoqelekileyo

imathiselwano yokufaka i-hard disk drive

ukulinganisa ubukhwebo bokugcina i-hard disk drive

isikweletu se-sas hard disk drive

Ukukhulisa I-Performance kunye ne-Reliability

Amadiski ahlelweyo aSAS anika imiphumo emikhulu ngokushintshelana neqondo lekhono lokulayishwa, okuvikela ukuguqula amanani kudatha kuya ku-12 Gb/s kuzinye izinhlanu. Lokhu kukhanyekwa ngamanani okuhambisana ngekhono okuphimba ukufinyelela datheni, kuncipha isikhathi futhi kuthuthukise ukuphendula komphakathi. Le diski inezinto ezinhloso yezinkampani ezinamandla, nezinhlelo zokugcina datha ngaphandle kokungcola kakhulu. Qondile nokuthumela kwegama labo olunye olunye lomkhondo owenziwe ukuthuthukisa ubunemkela ngokuthi unikeze inkantolo yekhasimende uma enye ingahole. Lokhu kuyinkimbinkimbi kakhulu kumaqondo abalulekile apho akukho sikhathi sokuthintela.

Ukuphatha nokudala kwezinhloso zokusebenza

Lezi zinhloso zidizaynwe ngokuthi zenziwe ngezinto ezifanele ukusebenza ngendaweni yezinkampani eziphathe zakho. Ukunikezwa okukhulu kuzo kube nezinhlelo zokulungiselela ukuvula nokuhlelwa kwezindleko, okuyindlela yokugcina ubume lapho kusebenzwa kakhulu. Izinhloso ze-SAS zihlinzekisa amathemu atholakala ngaphezulu kwe-1.5 milione i-hour, okukhulu kunezinye izinhloso ezingasemgangathweni. Ukusetshenziswa kwesigaba sokuthola isimo esiphikisayo sibonisa ukuthi abasebenzisi bakwazi ukushintsha izinkinga ngaphambi kokuba zithinte inkampani, futhi ukutholwa kwebhola elikhanyayo kuvumela ukuthi kubuyiselwe ngaphandle kokuthi inhlukanipho iyahlule.

Ukunciphisa futhi ukuphathwa

Izinhlelo SAS zinikeza ukwakheka okukhulu ngokuthiwa yonke inkokheli yazo, kulokho kungavumela izinkampani ukuthutha kwazo ukwakha phambili isithombi sokugcina data ngenkathi singathintele ubunzima bokusebenza. I-interface ikhansela amadivayisi angama-65,535 ngokuthiwa yonke, kulokho kungavumela ukucwangcwa okukhulu kwezithombi ezingasetshenziswa njengesistimu enye. Izinhlelo zakudala zifaka phakathi ukulandwa komsebenzi odingekayo, ukubika iziphoso, nokulandwa kwezimo ezenza ukuvikela ngaphambili. Izinhlelo zisebenzisa izimfuneko eziphephile zamalungelo nezinjongo zokuhlinzeka, zinikezela ukuphela kwezethu kuqoqa lelimali. Ukuthiwa yazo nezinhlelo zakudala kwezithombi zokugcina ezisemthethweni zinikeza ukuthutha okulula kuzo kusistimu ezivele esetshenziselwa, ngenkathi izinhlelo zakudala ezisemthethweni zinikeza ukuthiwa yonke nezinhlelo zasekhaya nezithombi zezinhlayiya.