Dab tsi yog SLC, MLC, & TLC NAND FLASH

Tus neeg twg uas tau sim ib qho yuav ua pov thawj, kev sib tw ruaj khov lub xeev (SSDs) yog qhov tseem ceeb! Nrog lub sijhawm thauj khoom sai rau koj cov apps uas koj nyiam, ntau dua kev ua haujlwm siab, thiab ntxiv cov kav ntev dua los piv rau cov khoom qub nyuaj, nws tsis muaj qhov xav tias lawv tau nce ntxiv rau txhua cov khoom tshiab uas muaj kev lag luam.

Tab sis dab tsi ua rau qee qhov SSDs kim dua li lwm tus? Zoo li cov tsheb sib tw, nws yog txhua yam nyob hauv qab hood.

Anatomy ntawm SSD

MyDigitalSSD BP4e mSATA SSD nrog ob daim kawg ntawm NAND flash nco chips ntsia. Lub nti tswj hwm yog tsim los ntawm PHISON

• A. NAND Flash: Qhov uas koj cov ntaub ntawv khaws cia, nyob rau hauv cov blocks tsis hloov (tsis xav tau lub zog los tswj cov ntaub ntawv) lub cim xeeb.

• B. DDR Memory: Tus nqi me me ntawm qhov tsis nco (xav kom muaj lub zog los tuav cov ntaub ntawv) siv los khaws cov ntaub ntawv rau yav tom ntej. Tsis muaj nyob ntawm txhua SSDs.

• C. Cov Chaw Tswj Xyuas: Ua raws li qhov txuas loj ntawm NAND flash thiab koj lub khoos phis tawm. Cov maub los tseem ntim cov firmware uas pab koj tswj hwm koj li SSD.

NAND Flash yog dab tsi?

NAND flash nco tau tsim los ntawm ntau lub hlwb uas tuav cov khoom, thiab cov khoom me me yog muab tua lossis tawm los ntawm kev siv hluav taws xob. Yuav ua li cas cov on / off cells raug muab txhim tsa sawv cev cov ntaub ntawv khaws tseg rau SSD. Tus naj npawb ntawm cov khoom hauv cov hlwb tseem txiav txim siab lub npe ntawm lub eeb, piv txwv li Ib Theem Cell (SLC) flash muaj cov kab me me hauv txhua lub cell.

Qhov laj thawj tom qab SLC tsuas yog muaj nyob rau ntawm qhov muaj peev xwm tsawg dua yog nyob ntawm lub cev cov cuab yeej ntawm lub cev NAND flash occupies ntawm Printed Circuit Board (PCB). Tsis txhob hnov qab hais tias lub rooj tsav xwm hauv Circuit Court yuav tsum muaj lub maub los, DDR memory, thiab flash tsim rau cov qauv qhov ntev kom haum rau hauv koj lub computer. MLC muab ob npaug ntawm cov khoom hauv ib ntawm tes, hos TLC peb zaug, thiab qhov no qhib rau kom muaj peev xwm siab dua SSDs.

Muaj cov laj thawj tshwj xeeb yog vim li cas cov neeg tsim khoom tsim cov cim xeeb flash nrog ib qho me me ntawm ib tus xov tooj xws li SLC. SLC muaj qhov ua tau zoo yog qhov nrawm tshaj, feem ntau ruaj tab sis muaj cov kev pom zoo ntawm cov nqi kim dua, thiab tsis muaj nyob hauv qhov siab dua ntim gigabyte muaj peev xwm. Yog vim li cas SLC yog dua rau cov lag luam hnyav siv.

MLC thiab TLC nyem hauv kev sib piv rau SLC, yog qhov pheej yig dua rau cov khoom lag luam, muaj nyob hauv cov peev txheej cia ntau dua, tab sis thaum muaj kev lag luam tawm ntawm lub neej luv dua qhov ntev thiab qeeb nyeem / sau qeeb. MLC thiab TLC nyiam rau cov neeg siv khoom siv computer niaj hnub.

Nkag siab txog koj tus kheej cov kev xav tau kev suav thiab NAND flash pib yuav tsis tsuas yog pab koj xaiv qhov tsim nyog SSD, tab sis kuj tseem yuav pab koj txiav txim siab txog yam tseem ceeb xws li tus nqi tom qab cov khoom.

SLC (Tib Theem Cell)

Ib Theem Theem Cell teeb lub npe hu ua rau nws yog ib qho me me uas tuaj yeem tso tawm lossis tawm thaum tsub nqi. Hom flash no muaj qhov zoo dua ntawm qhov ua tau zoo tshaj plaws thaum nyeem thiab sau cov ntaub ntawv, thiab tseem muaj cov txiaj ntsig ntawm kev ua ntev tshaj cov ntaub ntawv nyeem thiab sau mus. Cov kev pab cuam nyeem / sau lub neej ua haujlwm ib qho cia siab ntawm 90,000 txog 100,000. Hom flash tau ua tshwj xeeb zoo hauv kev lag luam ua lag luam vim tias nws lub neej ncua, qhov tseeb thiab kev ua haujlwm tag nrho. Koj yuav tsis pom ntau lub koos pij tawj hauv tsev nrog hom NAND no vim tias nws tus nqi siab thiab kev cia khoom tsawg.

Pros:

• Muaj lub sijhawm ntev tshaj plaws thiab them mus ncig dua lwm hom flash.

• Ntau dua txhim khu kev qha chav me rau kev nyeem ntawv / sau yuam kev.

• Muaj peev xwm khiav lag luam hauv qhov kub ntau.

Cons:

• Qhov kim tshaj plaws hom NAND nyem ntawm kev ua lag luam.

• Feem ntau tsuas yog muaj nyob hauv qhov muaj peev xwm me me.

Pom zoo rau:

• Kev siv khoom thiab cov khoom siv ntau uas yuav tsum muaj cov ntawv hnyav / sau ntawv xws li cov tshuab pabcuam.

eMLC (Muaj Ntau Qiv Cell)

eMLC yog MLC flash, tab sis zoo rau qhov kev lag luam kev lag luam thiab muaj kev ua tau zoo dua thiab ua tau ntev. Nyeem / sau cov ntaub ntawv ua lub neej ib puag ncig xav txog ntawm 20,000 txog 30,000. eMLC muab cov nqi qis dua los siv rau SLC, tseem khaws qee qhov zoo ntawm SLC.

Pros:

• Pheej yig dua lwm txoj kev tshaj SLC rau ib qho SSD kev lag luam.

• Muaj kev ua tau zoo dua thiab kev ua siab ntev dhau tus qauv MLC.

Cons:

• Tsis phim SLC NAND flash SSDs hauv kev ua yeeb yam.

Pom zoo rau:

• Kev siv khoom thiab cov khoom siv ntau uas yuav tsum muaj cov ntawv hnyav / sau ntawv xws li cov tshuab pabcuam.

MLC (Ntau Qiv Cell)

MLC flash li nws lub npe pom zoo khaws cov khoom sib txuam ntawm cov ntaub ntawv ntawm ib lub cell. Qhov loj kom zoo ntawm qhov no yog tus nqi qis dua ntawm kev tsim khoom piv rau kev tsim tawm SLC flash. Tus nqi qis dua hauv kev tsim cov flash yog feem ntau dhau mus rau koj raws li tus neeg siv khoom, thiab vim li ntawd nws nrov heev ntawm ntau hom. MLC flash yog qhov zoo dua rau cov neeg siv khoom SSDs rau nws cov nqi qis dua tab sis cov ntaub ntawv nyeem / sau lub neej yog tsawg dua nyob rau hauv kev sib piv rau SLC ntawm ib puag ncig 10,000 ib lub xov tooj.

Pros:

• Tsawg tus nqi tsim tawm tau dhau mus rau koj tus neeg siv khoom.

• Yog xav paub ntau dua txhim kho dua li TLC flash.

Cons:

• Tsis coj zoo thiab txhim khu kev qha raws li SLC lossis enterprise SSDs.

Pom zoo rau:

• Cov neeg siv khoom txhua hnub siv, gamers, thiab nyiam.

TLC (Triple Theem Cell)

Khaws 3 qhov nyob hauv ib qho ntawm tes, TLC flash yog qhov pheej yig tshaj lub eeb tsim. Qhov teeb meem loj tshaj plaws rau hom kev nyem no nws tsuas yog tsim nyog rau cov neeg siv khoom, thiab yuav ua tsis tau raws li cov qauv rau kev siv. Nyeem / sau ntawv mus los ntawm lub neej yog muaj luv luv li ntawm 3,000 mus rau 5,000 mus rau ib lub sijhawm.

Pros:

• Pheej yig tshaj los tsim uas nyob rau hauv lem ua rau pheej yig dua rau kev ua lag luam SSDs.

Cons:

• Hlwb yuav nyob ciaj ntau yam tsawg nyeem / sau mus piv rau MLC NAND. Qhov no txhais tau tias TLC flash yuav zoo rau cov neeg siv khoom nkaus xwb.

Pom zoo rau:

• Kev siv cov khoom lag luam niaj hnub, web / email machine, netbook, thiab ntsiav tshuaj.

Lub voj voog SSD Lub Neej

Zoo li txhua yam uas zoo, SSD tsis kav ntev mus ib txhis. Raws li tau sau tseg saum toj no, lub zog lub xeev kev tsav tsheb lub neej puag ncig tuaj yeem ncaj qha rau NAND flash nws tuaj nrog. SLC flash, piv txwv li, yuav kav ntev dua MLC lossis TLC flash tab sis qhov ntawd los ntawm tus nqi tseem ceeb.

Nrog MLC thiab TLC nyem feem ntau siv / pom hauv cov neeg siv khoom SSDs, cov lus nug tiag tiag yog ntev li cas lawv yuav kav?

Tech រាយការណ៍.com tau sim ntau yam muaj cov neeg siv khoom-qib SSDs, feem ntau ntawm MLC NAND nrog rau ib tus yog TLC NAND, thiab cov txiaj ntsig tau muaj txiaj ntsig zoo. Tag nrho cov cuab yeej siv tau kuaj mob tsawg kawg yog 700 terabytes (TB) ntawm sau ua ntej ua tiav, thiab ob peb txawm thawb dhau ib petabyte (PB).

Qhov no muaj ntau cov ntaub ntawv, tab sis cia peb muab qhov ntawd xam pom hauv kev sau 1 PB mus rau SSD.

Saib ntawm cov xov tooj yuav tsum muab los so kom tsis txaus ntseeg txog koj qhov SSD tsis ua tiav txhua lub sijhawm luv.

Yog tias koj tab tom txiav txim siab MLC lossis TLC SSD rau cov neeg siv khoom txhua hnub nyiam; khaws cov nkauj, duab, software, cov ntawv ntiag tug lossis kev ua si tom qab ntawd koj yuav tsum paub tseeb tias koj tus SSD yuav tsum nyob nyob ob peb xyoos. Qhov kev siv no suav hais tias yog lub teeb piv rau kev nyeem ntawv hnyav / sau ntawv ntawm cov lag luam cov servers thiab computers raws li tau hais tseg hauv ntu txuas mus ntxiv no.

Nco tseg: Rau txhua tus neeg txhawj xeeb txog kev sim neej ntawm lawv li SSD, cov yam ntxwv xws li Kev Ntsuas Tus Kheej Kev Ntsuam Xyuas thiab Kev Tshaj Tawm Tshuab, lossis SMART luv luv, tuaj yeem pab koj txheeb xyuas koj qhov SSD ntev dua.

Kev Lag Luam vs. Cov Neeg Siv Khoom SSDs

Qhov sib txawv thiab kev xav tau xav tau ntawm kev lag luam SSDs teeb tsa lub ntiaj teb rau lawv los ntawm cov neeg siv khoom SSD. Cov Chaw Ua Haujlwm SSDs tau tsim los ua kom tau raws li cov txheej txheem siab dua, thiab ua tau zoo hauv cov kev pabcuam siab, kev ua tub rog, kev tshawb fawb thiab txhua thaj chaw uas yuav xav tau ntau cov ntaub ntawv nyeem thiab sau ntawv.

Database servers yog ib qho piv txwv ntawm qhov uas koj yuav pom SSDs kev lag luam, cov servers no nyob rau 24/7 thiab uas suav nrog: ntev nyeem / sau lub neej ntev dua, nyeem tau nrawm dua / sau nrawm dua, muaj kev ntseeg tau zoo thiab siv tau ntev hauv ib puag ncig hnyav.

Tus Neeg Siv Khoom SSDs tsis tshua kim, thiab raug rho tawm cov qauv lag luam SSDs. Qhov no yuav zoo li koj ploj ntawm qee yam nta, tab sis cov txiaj ntsig ntawm cov khoom pheej yig dua nrog cov cia loj dua tau tsim nyog. Dhau li qhov kev tsim khoom lag luam ib txwm nce kev ua haujlwm ntawm SSD thaum coj tus nqi qis.

Hauv Xaus

Txij ntawm no, tej zaum koj muaj lub tswv yim zoo ntawm qhov sib txawv ntawm SLC, MLC, thiab TLC NAND flash. Cov hauv paus uas peb tau sib tham txog ntawm no, nrog kev pom tias yog vim li cas qee tus nqi ntau dua li lwm tus, yuav tsum tau tshem tawm qhov tsis meej pem raws li hom flash zoo li cas yog qhov koj xav tau.

Qhov tseem ceeb uas yuav tsum coj tawm ntawm cov lus qhia no yog tias cov SSD niaj hnub no tau tsim tsa kom nyob ntev heev. Thaum lawv lub neej kev ua haujlwm yuav tsum tau coj mus rau hauv tus account, nws yuav tsum tsis txhob tiv thaiv koj los ntawm kev yuav khoom sai dua thiab kev txuag nyiaj ntau dua.