SATA vs SAS
SAS thiab SATA yog qhov sib txuas zoo sib xws, txawm li cas los xij muaj qee qhov sib txawv ntawm lawv. Nrog rau ntau cov ntaub ntawv digital nkag mus rau txhua yam ntawm lub neej, qhov xav tau ntawm cov ntaub ntawv khaws cia zoo tshaj plaws tau ua kom cov neeg tsim khoom kho vajtse thiab software tsim kom muaj kev txwv ntawm kev siv thev naus laus zis. Cov lag luam xav tau kev ruaj ntseg thiab txhim khu kev qha cov ntaub ntawv khaws cia thiab tseem xav kom nws muaj txhua lub sijhawm. Cov thev naus laus zis tshiab tau hloov pauv txhua lub sijhawm, thiab nrog kev qhia txog Serial Attached SCSI, lossis SAS hauv luv luv, cov kev xav tau nyuaj ntawm kev lag luam niaj hnub no tuaj yeem ua tau raws li kev ua tau zoo thiab hloov tau yooj yim. SAS muab lub zog thiab kev ntseeg siab ntawm SCSI uas yuav tsum tau muaj nyob rau hauv chav kawm kev lag luam. Tsuas yog qhov sib txawv ntawm yav dhau los SATA thiab SAS tuaj yeem pom tau zoo dua cov teeb liab kev ncaj ncees, ntau dua qhov chaw nyob, thiab kev ua haujlwm siab dua nrog SAS.
Point to point SAS technology tam sim no muab qhov siab tshaj plaws ntawm 3 GB / sec, qhov siab tshaj plaws uas SATA tuaj yeem ua tiav yog 300 MB / sec, txawm tias muaj kev txhim kho SATA, hu ua SATA II. SAS tau cog lus tias yuav ua haujlwm ntawm qhov nrawm dua ntawm 6 GB / sec thiab txawm tias 12 GB / sec yav tom ntej. Dab tsi yog qhov zoo yog qhov tseeb tias SAS cov khoom siv tau sib xws nrog SATA cia tshuab uas muab ntau yam kev daws teeb meem thiab kev sib koom ua ke. Parallel interface drives tau muab txoj hauv kev rau kev ua tau zoo serial interfaces thiab SAS thiab SATA tau dhau los ua cov thev naus laus zis tau nyiam los ntawm kev lag luam.
Qhov txawv ntawm SAS thiab SATA
Txawm tias SAS thiab SATA tau sib xws thiab zoo sib xws, muaj qee qhov sib txawv. Whereas SAS interfaces zoo li tsim nyog rau kev lag luam hauv chav kawm ib puag ncig thiab muaj peev xwm thiab kev ntseeg siab uas yuav tsum tau muaj rau cov chav kawm lag luam thiab RAID systems, SATA cov khoom muab tus nqi kom zoo dua thiab muaj nyob ntawm tus nqi qis. Lawv feem ntau tsim nyog rau cov khoos phis tawj desktop thiab cov txheej txheem khaws cia xws li kev tswj hwm kev tswj hwm, cov ntaub ntawv siv, thaub qab cov ntaub ntawv, thiab khaws cia cov ntaub ntawv tseem ceeb.
SAS drives khaws tag nrho cov kev ua tau zoo thiab kev ntseeg siab ntawm SCSI ib txwm muaj thaum kov yeej qhov tsis txaus ntawm qhov sib txuas. Txawm li cas los xij, rau cov ntawv luam tawm thiab cov ntaub ntawv servers, cov kev pabcuam ntawm SATA drives nyiam dua vim tias lawv cov cam khwb cia qis thiab muaj peev xwm siab.
Lwm qhov sib txawv ntawm SAS thiab SATA cuam tshuam rau kev hloov pauv thiab tsim qauv. SAS tsav cables tuaj yeem ncav cuag 6 npaug ntawm qhov ntev ntawm SATA tsav cables. Thaum SAS drives yog dual ported, SATA drives tsuas muaj ib qho chaw nres nkoj xwb. Lwm qhov sib txawv ntawm ob lub interface drives yog tias thaum SAS raug ntsuas rau kev siv kev lag luam txuas ntxiv thaum SATA drives feem ntau raug ntsuas rau tsawg dua 100% lub voj voog ua haujlwm.
