Tam sim no, yog tau-lub xeev drives los yog SSD yog muaj ntau thiab ntau chaw ( S. Olid. S. Tate. D. Rive). Qhov no yog vim lub fact tias lawv muaj peev xwm muab ob cov kev kub ceev nyeem-sau cov ntaub ntawv thiab zoo muaj kev cia siab. Tsis zoo li cov pa nyuaj drives, yog tsis muaj tsiv ntsiab no, thiab tshwj xeeb flash nco yog siv rau lub khw cov ntaub ntawv - Nand.
Thaum lub sij hawm ntawm kev sau ntawv hauv tsab xov xwm, peb hom kev flash nco yog siv: MLC, SLC thiab TLC thiab nyob rau hauv no tsab xov xwm Peb yuav sim kom paub tseeb uas lawv zoo thiab yog dab tsi rau qhov sib txawv nruab nrab ntawm lawv.
Comparative Txheej txheem cej luam ntawm SLC, MLC thiab TLC nco Hom
Nand eeb nco lub npe hu ua li nyob rau hauv Honor ntawm ib tug tshwj xeeb ntawm cov ntaub ntawv npav - tsis thiab (zajlus kom tsis thiab). Yog hais tias koj tsis txhob mus rau hauv kev txhawb, ces cia hais tias Nand kev txiav txim cov ntaub ntawv mus rau hauv me me blocks (los yog cov nplooj ntawv) thiab tso cai rau koj mus cuag siab cov ntaub ntawv nyeem nqi.
Tam sim no cia peb xav txog uas hom kev nco yog siv nyob rau hauv cov khoom-xeev drives.
Tib Theem Cell (SLC)
SLC yog ib tug outdated hom nco uas siv ib zaug xwb-theem nco hlwb khaws cia ntaub ntawv (los ntawm txoj kev, qhov literal translation mus rau hauv Lavxias teb sab suab zoo li ib tug "single-theem cell"). Uas yog, muaj ib me ntsis ntawm cov ntaub ntawv twb khaws cia nyob rau hauv ib tug ntawm tes. Xws li ib tug cia lub koom haum tso cai rau muab kev kub ceev thiab ib tug lossis loj sau dua tshiab pab. Yog li, tus nyeem ntawv ceev nce mus txog 25 ms, thiab tus naj npawb ntawm mus ntawm overwriting yog 100'000. Txawm li cas los, txawm nws muaj kev simplicity, SLC yog ib tug kim heev hom kev nco.Pros:
- High nyeem-sau ceev;
- Loj pab overwriting.
Masht:
- High nqi.
NTAU THEEM CELL (MLC)
Cov kauj ruam tom ntej nyob rau hauv txoj kev loj hlob ntawm flash nco yog lub MLC hom (txhais ua Lavxias teb sab suab zoo li ib tug "multi-level cell"). Tsis zoo li SLC, muaj ob-theem hlwb uas khw ob cov ntaub ntawv me me. Lub nyeem sau ceev seem nyob rau ntawm ib theem siab, tab sis lub endurance txo ho. Yog hais tias koj hais lus rau hauv xov tooj ntawm cov xov tooj, ces tus nyeem ntawv ceev yog 25 ms, thiab tus naj npawb ntawm mus ntawm rewriting yog 3'000. Tsis tas li ntawd, qhov no hom yog ob qho tib si pheej yig dua, li ntawd nws yog siv nyob rau hauv feem ntau tau lub xeev drives.Pros:
- Lower them nqi;
- High nyeem sau ceev piv rau pa discs.
Masht:
- Tsis tshua muaj tus naj npawb ntawm overwriting mus.
Peb Theem Cell (TLC)
Thaum kawg, peb hom kev nco yog TLC (Lavxias teb sab version ntawm lub npe ntawm no hom ntawm lub cim xeeb suab zoo li ib tug "peb-theem cell"). Hais txog ob tug ua ntej sawv daws yuav, qhov no hom yog pheej yig dua thiab yog tam sim no nrhiav tau ntau heev nyob rau hauv cov nyiaj txiag drives.Hom no yog ntom ntom ntom ntom, hauv txhua lub cell ntawm no 3 cov me nyuam khaws cia ntawm no. Nyob rau hauv lem, siab ntom ua rau ib qho kev txo qis hauv nyeem / sau ceev thiab txo qhov kev ua siab ntev ntawm lub disc. Tsis zoo li lwm hom kev nco, qhov ceev ntawm no tau poob rau 75 MS, thiab tus naj npawb ntawm cov voj voog sau los yog 1'000.
Pros:
- Siab ntom ntom;
- Tus nqi qis.
Masht:
- Tus lej tsawg ntawm cov voj voog uas tsis tau sau;
- Tsawg nyeem-sau ceev.
Tag
Tshaj tawm, nws tuaj yeem sau tseg tias qhov kev kub tshaj plaws thiab ruaj khov hom flash nco yog SLC. Txawm li cas los xij, vim tus nqi siab, lub cim xeeb no muaj ntau hom pheej yig dua.
Pob nyiaj siv, thiab tib lub sijhawm, tsis tshua muaj siab tshaj yog TLC hom.
Thiab thaum kawg, txhais tau tias yog MLC hom, uas muab kev ceev ntau dua thiab ntseeg tau ntau dua li discs thiab tsis kim dhau. Rau qhov kev sib piv ntxiv, koj tuaj yeem paub koj tus kheej nrog cov lus hauv qab no. Nws muaj cov ntsiab lus tseem ceeb ntawm cov hom cim xeeb uas cov kev sib piv tau ua.
