A halin yanzu, koran-jihar ko SSDs suna samun karuwa sosai (Solid State Drive). Wannan saboda gaskiyar cewa sun sami damar samar da saurin karantawa / rubuta saurin fayiloli da dogaro mai kyau. Ba kamar ɓarke na yau da kullun ba, babu abubuwa masu motsawa, kuma ƙwaƙwalwar walƙiya ta musamman - Ana amfani da NAND don adana bayanai.
A lokacin rubutawa, SSD tana amfani da nau'ikan ƙwaƙwalwar ajiya guda uku: MLC, SLC, da TLC, kuma a cikin wannan labarin za muyi ƙoƙarin gano wanene mafi kyawu kuma menene banbanci tsakanin su.
Overididdigar Nazarin SLC, MLC, da nau'ikan ƙwaƙwalwa na TLC
An ba da sunan ƙwaƙwalwar ƙwaƙwalwar NAND ta wani nau'in alamar data ta musamman - Ba DA (ma'ana ba KYAU). Ba tare da shiga cikin cikakkun bayanai na fasaha ba, bari mu faɗi cewa NAND yana shirya bayanai a cikin ƙananan katanga (ko shafuka) kuma yana ba ku damar samun saurin karatun karanta bayanai.
Yanzu bari mu kalli irin nau'in ƙwaƙwalwar ajiya da ake amfani da su a cikin m jihar tafiyarwa.
Single Level Cell (SLC)
SLC wani nau'in ƙwaƙwalwar ajiya ne da ya wuce wanda ke amfani da ƙwaƙwalwar ƙwaƙwalwa matakin-guda don adana bayanai (ta hanyar, fassarar zahiri zuwa cikin muryar Rasha kamar "sel ɗaya-matakin"). Wannan shine, a cikin sel guda an adana bayanai kaɗan. Irin wannan tsari na adana bayanai ya ba da damar samar da babban gudu da kuma babban kayan sake rubutawa. Don haka, saurin karantawa ya kai 25 ms, kuma adadinn sake bugun keke shine 100'000. Koyaya, duk da sauƙin sa, SLC nau'in ƙwaƙwalwar ajiya mai tsada sosai.
Ribobi:
- Saurin karantawa / rubuta saurin gudu;
- Babban rubutun sake amfani da shi.
Yarda:
- Babban farashi.
Kwayoyin Mataki da yawa (MLC)
Mataki na gaba a cikin ci gaba da ƙwaƙwalwar walƙiya shine nau'in MLC (wanda aka juya shi zuwa Rasha yana magana kamar "kwayar matakan da yawa"). Ba kamar SLC ba, ana amfani da sel biyu-biyu anan, wanda ke adana abubuwa biyu na bayanai. Karatu / rubuta saurin ya kasance babba, amma jimrewa an rage sosai. Yin magana da yaren lambobi, anan saurin karatun 25 ms ne, kuma adadin hawan keke shine 3'000. Wannan nau'in kuma mai rahusa ne, saboda haka ana amfani dashi a mafi yawan rumfunan jihar-da-ƙasa.
Ribobi:
- Costarancin kuɗi;
- Saurin karantawa / rubuta saurin kwatancen diski na yau da kullun.
Yarda:
- Overwarancin rubutu.
Uku Mataki Na Uku (TLC)
Kuma a ƙarshe, nau'in ƙwaƙwalwa na uku shine TLC (fasalin Rasha na sunan wannan nau'in ƙwaƙwalwar ajiya yana kama da "sel mai matakan uku"). Dangane da na baya guda biyu, wannan nau'in mai rahusa ne kuma a halin yanzu ana samun shi sau da yawa a cikin tafiyar kasafin kuɗi.
Wannan nau'in ya fi girma, a cikin kowace tantanin halitta 3 ana adana abubuwa anan. Bi da bi, da yawa yana rage yawan karanta / rubuta saurin kuma yana rage jimiri. Ba kamar sauran nau'ikan ƙwaƙwalwar ajiya ba, saurin anan ya ragu zuwa 75 ms, da kuma adadin hawan keke zuwa 1'000.
Ribobi:
- Babban adana bayanai mai yawa;
- Costarancin farashi
Yarda:
- Numberarancin adadin sake zagayen rubutu;
- Saurin karanta / rubuta saurin.
Kammalawa
Ta tattarawa, ana iya lura da cewa mafi kyawun tsari da walƙiyar ƙwaƙwalwar walƙiya shine SLC. Koyaya, saboda farashin mai girma, an saka wannan nau'in ƙwaƙwalwar ajiya ta hanyar nau'in rahusa.
Kasafin kuɗi, kuma a lokaci guda, ƙasa da sauri shine nau'in TLC.
Kuma a ƙarshe, ma'anar zinari shine nau'in MLC, wanda ke samar da mafi girma da sauri da aminci idan aka kwatanta da diski na al'ada kuma ba shi da tsada sosai a lokaci guda. Don ƙarin kwatancin gani, duba teburin da ke ƙasa. Anan ne babban sigogi na nau'in ƙwaƙwalwar ajiya waɗanda aka yi amfani dasu don kwatantawa.
