Tam sim no, cov khoom siv khov kho-xeev los yog SSD tau nce ntau dua thiab nrov dua (Qhaolid Qhatate Drive). Qhov no yog vim qhov tseeb tias lawv muaj peev xwm muab ob qho siab nyeem / sau ceev ntawm cov ntaub ntawv thiab kev ntseeg tau zoo. Tsis zoo li cov ntawv nyuaj nyuaj, tsis muaj cov ntsiab lus txav, thiab lub cim xeeb flash tshwj xeeb - NAND tau siv los khaws cov ntaub ntawv.
Thaum lub sijhawm sau ntawv, SSD siv peb hom cim xeeb: MLC, SLC, thiab TLC, thiab hauv tsab xov xwm no peb yuav sim seb ib qho twg zoo dua thiab dab tsi yog qhov sib txawv ntawm lawv.
Sib Tham Tag Nrho Cov SLC, MLC, thiab TLC Cov Cim Tseem Ceeb
NAND flash nco tau lub npe tom qab tshwj xeeb hom ntawm cov ntaub ntawv cim - Tsis THIAB (thawj cov ntsiab lus TSIS). Tsis tas yuav mus rau hauv cov ntsiab lus technical, cia peb hais tias NAND teeb tsa cov ntaub ntawv hauv cov ntawv me me (lossis nplooj ntawv) thiab tso cai rau koj kom ua tiav cov ntaub ntawv nyeem nrawm dua.
Tam sim no cia saib seb hom kev nco twg siv rau hauv lub xeev cov khoom siv zog.
Ib Qib Cell (SLC)
SLC yog hom kev nco tawm uas siv cov qib ib qib ntawm lub hlwb khaws cov ntaub ntawv (los ntawm txoj kev, qhov txhais lus ncaj nraim mus rau Lavxias lub suab zoo li “ib qib ntawm tes”). Ntawd yog, hauv ib qho ntawm tes ib qho ntawm cov ntaub ntawv tau khaws cia. Xws li lub koom haum ntawm cov ntaub ntawv khaws cia ua rau nws muaj peev xwm muab kev kub ceev thiab cov peev txheej sau dua tshiab. Yog li, qhov kev nyeem ceev nce mus txog 25 ms, thiab tus lej ntawm rov sau dua tshiab yog 100'000. Txawm li cas los xij, txawm tias nws yooj yim, SLC yog hom kev nco uas kim heev.
Pros:
- Siab nyeem / sau nrawm;
- Yawm sau dua khoom siv.
Cons:
- Muaj nqi.
Ntau Qiv Cell (MLC)
Cov theem tom ntej hauv kev txhim kho ntawm flash nco yog MLC hom (txhais ua lus Lavxias nws suab zoo li "ntau qib ntawm tes"). Tsis zoo li SLC, ob-qib hlwb siv nyob ntawm no, uas khaws ob qho khoom ntawm cov ntaub ntawv. Kev nyeem ntawv / sau ntawv tseem ceev, tab sis kev ua siab ntev ntev raug txo. Kev hais lus nyob rau hauv cov lus ntawm cov naj npawb, ntawm no nyeem nrawm yog 25 ms, thiab tus lej ntawm kev rov ua dua tshiab yog 3'000. Hom no kuj tseem pheej yig dua, yog li nws tau siv hauv feem ntau cov khoom siv khov-xeev.
Pros:
- Cov nqi qis dua;
- Kev nyeem ntawv siab / sau ntawv ceev ceev piv nrog disks li niaj zaus.
Cons:
- Tsawg tsawg dua qub mus.
Peb Qib Cell (TLC)
Thiab thaum kawg, hom cim peb yog TLC (Lavxias teb sab version ntawm lub npe ntawm qhov cim xeeb zoo li no “qib peb ntawm tes”). Tus txheeb ze ntawm ob qho dhau los, hom no pheej yig dua thiab tam sim no pom ntau zaus hauv pob nyiaj siv.
Hom no yog ntau ntom, hauv txhua lub cell 3 ntim tau khaws ntawm no. Nyeg, qhov siab ceev ua rau txo kev nyeem ntawv / sau ntawv thiab txo qhov kawg ntawm kev ua haujlwm. Tsis zoo li lwm hom kev nco, tus ceev ntawm no poob qis rau 75 ms, thiab tus lej ntawm kev rov ua dua mus rau 1'000.
Pros:
- Kev kub ceev cov ntaub ntawv khaws cia;
- Tus nqi qis
Cons:
- Tsawg tsawg ntawm kev sau ntawv mus rov los;
- Tsawg nyeem / sau nrawm.
Xaus
Tshaj tawm, nws tuaj yeem sau tseg tias hom nrawm tshaj plaws thiab siv tau ntev ntawm flash nco yog SLC. Txawm li cas los xij, vim tias tus nqi siab, hom kev nco no tau muab los ntawm cov nqi pheej yig dua.
Cov peev nyiaj, thiab tib lub sijhawm, tsis nrawm dua yog hom TLC.
Thiab thaum kawg, lub ntsiab lus kub yog MLC hom, uas muab cov kev nrawm dua thiab kev ntseeg tau piv nrog cov disks pom thiab tsis kim dhau rau tib lub sijhawm. Txhawm rau pom qhov sib piv, pom cov lus hauv qab no. Ntawm no yog qhov ntsuas qhov tseem ceeb ntawm hom kev nco tau siv los sib piv.
