Tam sim no, ntau thiab ntau qhov chaw muaj txiaj ntsig zoo zog-xeev lub xeev los yog SSD (Solid State Drive). Qhov no yog vim muaj qhov tseeb tias lawv muaj peev xwm muab cov ntaub ntawv sau ua ob qho tib si rau high-speed nyeem ntawv thiab muaj kev ntseeg zoo. Tsis zoo li cov cim tsis tshua muaj zog, tsis muaj txav kis, thiab nco tshwj xeeb flash - NPE - yog siv los khaws cov ntaub ntawv.
Thaum lub sijhawm sau ntawv, peb hom flash nco siv hauv SSD: MLC, SLC thiab TLC, thiab hauv tsab xov xwm no peb yuav sim xyuas seb qhov twg yog qhov zoo thiab qhov txawv ntawm qhov ntawd.
Kev sib piv ntawm cov hom kev nco SLC, MLC thiab TLC
NAND flash nco tau npe tom qab tus tshwj xeeb hom ntawm cov ntaub ntawv npav - Tsis THIAB (cov zajlus tsis Kuv). Yog tias koj tsis mus rau cov lus qhia, ces peb hais tias NAND npaj cov ntaub ntawv rau hauv cov blocks me me (los yog cov nplooj ntawv) thiab tso cai rau koj kom ua tiav cov ntaub ntawv qhia kev ceev ceev.
Tam sim no cia saib seb cov hom kev nco yog siv nyob rau hauv solid-state drives.
Ib Qib Cell (SLC)
SLC yog ib qho kev nco txog kev cim xeeb uas siv tib lub cim xeeb uas siv los khaws cov ntaub ntawv (los ntawm txoj kev, cov lus txhais ua lus Askiv zoo ib yam li "ib theem ntawm tes"). Ntawd yog, ib me ntsis cov ntaub ntawv tau muab cia rau hauv ib lub xov tooj. Lub koom haum no cia tau ua kom muaj kev kub ceev thiab ib qho kev lag luam loj loj. Yog li, nyeem ntawv khiav ncav 25 ms, thiab cov xov tooj ntawm kev sau rov qab yog 100'000. Txawm li cas los xij, txawm tias nws yooj yim, SLC yog ib qho tseem ceeb ntawm kev nco.
Tshaj:
- Cov nyeem ntawv / sau ntawv ceev;
- Ib qho zoo rov sau dua tshiab.
Txais:
- Tus nqi siab
Zov Qib Cell (MLC)
Cov theem tom ntej hauv kev loj hlob ntawm flash nco yog MLC hom (hauv Lavxias teb sab, nws zoo li "ntau theem cell"). Tsis zoo li SLC, nws siv ob lub hlwb uas khaws ob pawg ntawm cov ntaub ntawv. Qhov nyeem ntawv sau tsis tshua siab, tab sis endurance yog txo qis. Kev hais lus nyob rau hauv xov tooj, ntawm no nyeem ntawv ceev yog 25 ms, thiab cov xov tooj ntawm rewriting mus yog 3,000. Hom no kuj yog pheej yig dua, yog li nws siv tau rau hauv feem ntau ntawm lub xeev-tsav.
Tshaj:
- Tsawg nqi;
- Cov ntawv nyeem / sau ntawv sau tau siab dua rau cov kev ua tsis tu ncua.
Txais:
- Tsawg tus naj npawb ntawm sau dua tshiab.
Peb Theem Qib (TLC)
Thiab thaum kawg, peb hom kev nco yog TLC (tus Lavxias teb sab version ntawm lub npe ntawm hom suab lus zoo li "peb theem ntawm tes"). Hais txog ob yav dhau los, hom no yog pheej yig dua thiab tam sim no muaj ntau heev hauv kev siv nyiaj txiag.
Hom kab no ntau dua, 3 pob khoom muab cia rau hauv txhua lub xov tooj. Nyeg, qhov siab ceev txo txoj kev nyeem ntawv / sau ntawv thiab txo qhov kev tiv thaiv kab mob. Tsis zoo li lwm hom kev nco, qhov kev khiav ntawm no yog txo mus rau 75 ms, thiab cov xov tooj ntawm cov sau tau rov sau txog li 1,000.
Tshaj:
- Cov ntaub ntawv ceev xwm ceev;
- Tsawg nqi.
Txais:
- Tsawg tus naj npawb ntawm sau dua tshiab;
- Tsawg nyeem / sau ntawv tsawg.
Xaus
Summing up, nws yuav tsum tau sau tseg tias feem ntau high-speed thiab ruaj hom flash nco yog SLC. Txawm li cas los, vim muaj tus nqi siab, cov nqi pheej yig muaj neeg coob tawm los ntawm lub cim xeeb no.
Kev siv nyiaj, thiab tib lub sij hawm, tsawg ceev yog hom ntawm TLC.
Thiab thaum kawg, txhais tias Golden yog MLC hom, uas muab kev ceev dua thiab kev cia siab rau piv rau cov pa disks thiab tsis yog ib qho kim heev. Rau kev sib piv dua ntxiv, saib cov lus hauv qab no. Ntawm no yog qhov tseem ceeb ntawm cov hom kev nco uas cov sib piv tau ua.
