Njengamanje, ukuthandwa ngokwengeziwe kuyatholwa ngokuqinile-isimo se-SSD (Solid Si-tate Du-rive). Lokhu kubangelwa ukuthi bayakwazi ukuhlinzeka kokubili amafayela okufunda nokubhala okusheshayo nokuthembeka okuhle. Ngokungafani nezinkinobho ezinzima ezivamile, azikho izingxenye ezihambayo, futhi inkumbulo ekhethekile ye-flash - NAND - isetshenziselwa ukugcina idatha.
Ngesikhathi sokubhala, izinhlobo ezintathu zememori ye-flash zisetshenziselwa i-SSD: i-MLC, i-SLC ne-TLC, futhi kulesi sihloko sizozama ukuthola ukuthi ubani ongcono nokuthi yini umahluko phakathi kwabo.
Ukubukeza okuqhathaniswayo kwenhlobo yememori ye-SLC, i-MLC ne-TLC
I-NAND flash memory ibizwa ngegama elikhethekile lokumaka idatha - AKUNGENYE (kunengqondo hhayi Cha). Uma ungangeni emininingwaneni yobuchwepheshe, sisho ukuthi i-NAND ihlela idatha emabhuloki amancane (noma amakhasi) futhi ivumela ukuthi ufeze ukufundwa kwedatha ephezulu.
Manje ake sibheke ukuthi yiziphi izinhlobo zememori ezisetshenziselwa ukushayela kwezwe okuqinile.
I-Cell Level Single (i-SLC)
I-SLC iyinhlobo yememori engaphelelwe yisikhathi lapho amaseli okukhumbula amakhodi oyedwa asetshenziselwa ukugcina ulwazi (ngendlela, ukuhumusha okungokoqobo emisindo yaseRashiya njenge "cell cell single"). Okusho ukuthi idatha eyodwa yedatha yayigcinwe esitokisini esisodwa. Le nhlangano yokugcina isitoreji yenza kube lula ukuhlinzeka ngesivinini esikhulu kanye nensiza enkulu yokubhala kabusha. Ngakho-ke, ijubane lokufunda lifinyelela kuma-25 ms, futhi inani lemijikelezo yokubhalwa kabusha yi-100'000. Kodwa-ke, naphezu kokulula kwayo, i-SLC iyinhlobo yemali ebiza kakhulu.
Izinzuzo:
- Isivinini esiphakeme sokufunda / ukubhala;
- Insiza enkulu yokubhala kabusha.
Umthengi:
- Izindleko eziphezulu
I-Multi Level Cell (MLC)
Isigaba esilandelayo ekuthuthukiseni imemori ye-flash yi-MLC uhlobo (ngesiRashiya, lizwakala njengelinye "seli-multi-level cell"). Ngokungafani ne-SLC, isebenzisa amangqamuzana amabili-level agcina amabhuzu amabili wedatha. Ijubane lokufunda-ukubhala lihlala liphakeme, kepha ukukhuthazela kunciphise kakhulu. Ukukhuluma ngezinombolo, lapha isivinini sokufunda singama-25 ms, futhi inani lemijikelezo yokubhala liyi-3,000. Lolu hlobo lubuye lube eshibhile, ngakho-ke lisetshenziselwa ukushayela okuningi okunamandla.
Izinzuzo:
- Izindleko eziphansi;
- Isivinini esiphakeme sokufunda / ukubhala kuqhathaniswa nama disks avamile.
Umthengi:
- Inombolo ephansi yokujikeleza kwemibuthano.
I-Cell Level Emithathu (i-TLC)
Futhi ekugcineni, uhlobo lwesithathu lwenkumbulo yi-TLC (inguqulo yaseRussia yelo hlobo lombhalo izwakala sengathi "i-cell level level"). Ngokuphathelene namabili angaphambilini, lolu hlobo alubi kakhulu kanti okwamanje luvame kakhulu kumashayela webhajethi.
Lolu hlobo lukhulu kakhulu, ama-bits amathathu agcinwa lapha kuseli ngalinye. Futhi, ukuphakama okukhulu kunciphisa isivinini sokufunda / ukubhala futhi kunciphisa ukudezela kwe-disk. Ngokungafani nezinye izinhlobo zememori, ijubane lapha linciphise libe ngu-75 ms, futhi inani lemijikelezo yokubhalwa kabusha lifinyelela ku-1,000.
Izinzuzo:
- Isitoreji sedatha yezinga eliphezulu;
- Izindleko eziphansi.
Umthengi:
- Inombolo ephansi yemijikelezo yokubhala kabusha;
- Isivinini esincane sokufunda / ukubhala.
Isiphetho
Ukubamba iqhaza, kungacatshangwa ukuthi uhlobo oluphezulu kakhulu lwe-flash memory oluyi-SLC. Kodwa-ke, ngenxa yentengo ephezulu, izinhlobo ezishibhile zikhulile kule nkumbulo.
Ibhajethi, futhi ngesikhathi esifanayo, ijubane elingaphansi uhlobo lwe-TLC.
Futhi ekugcineni, incazelo yegolide iyinhlobo ye-MLC, ehlinzeka ngesivinini esiphezulu nokuthembeka kuqhathaniswa nama disks avamile futhi akuyona uhlobo olubi kakhulu. Ukuze uthole ukuqhathanisa okubukwayo, bheka ithebula elingezansi. Nansi imingcele esemqoka yezinhlobo zememori okuqhathaniswa ngayo.
