Ubuchwepheshe be-SSD kumakhompyutha esivinini esikhulu
I-Pengantar
Kule nkathi yesimanje eyandayo, isidingo sesivinini nokusebenza kahle ekusetshenzisweni kwamakhompyutha siyanda. Ingxenye eyodwa edlala indima ebalulekile ekunqumeni ukusebenza kwesistimu yamakhompyutha yimidiya yokugcina. Ama-Solid State Drives (ama-SSD) ubuchwepheshe obuthathe indawo yama-hard disk drive endabuko (ama-HDD) ezinhlelweni eziningi zamakhompyutha ngoba anikeza isivinini nokusebenza okuphezulu kakhulu. Lesi sihloko sizobheka ngokujulile ubuchwepheshe be-SSD, ukuthi kungani bubalulekile ngesivinini esiphezulu, nokuthi bungathinta kanjani ulwazi lomsebenzisi jikelele.
Umlando Nokuthuthukiswa Kwe-SSD
Okokuqala, ake sibukeze umlando kanye nentuthuko yama-SSD. Ama-SSD aqala ukubonakala ngasekupheleni kwawo-1970 nasekuqaleni kwawo-1980 njengendlela yokugcina izinto ezithile zezimboni nezempi. Kodwa-ke, ekuqaleni, ngenxa yezindleko zawo eziphakeme, ama-SSD awazange asetshenziswe kabanzi emakethe yabathengi.
Kusukela ngawo-2000, ngentuthuko kwezobuchwepheshe bokukhiqiza ama-semiconductor kanye nokwehla kwamanani ezinto, ama-SSD abe yindlela engcono kakhulu kubathengi abavamile. Izinkampani ezifana ne-Intel, i-Samsung, ne-Kingston seziqalile ukuthuthukisa ama-SSD ashibhile futhi asebenza kahle, okwenza ubuchwepheshe butholakale kalula futhi buthandwe. Namuhla, ama-SSD asejwayelekile kumadivayisi amaningi, kusukela kuma-laptops nama-desktop PC kuya ezinhlelweni zeseva ezidinga isivinini esikhulu.
Umehluko Obalulekile Phakathi Kwe-SSD Ne-HDD
Ngokungafani nama-HDD, asebenzisa ama-spinning platter kanye nama-mechanical read/write heads, ama-SSD agcina idatha kuma-NAND flash memory chips. Lokhu kusho ukuthi ama-SSD awanazo izingxenye ezihambayo, okwenza asheshe, aqine, futhi aqine kakhudlwana. Ake sibheke ezinye zezici ezibalulekile ezihlukanisa ama-SSD kuma-HDD:
1. Isivinini Sokufunda/Ukubhala: Ama-SSD ayakwazi ukuba nesivinini sokufunda/ukubhala esiphezulu kakhulu kune-HDD. Isivinini sokufunda se-SSD ngokuvamile sisukela ku-500 kuya ku-550 MB/s, kuyilapho ama-HDD ngokuvamile efinyelela ku-100 kuya ku-150 MB/s kuphela.
2. Ukubambezeleka: Ukubambezeleka isikhathi esithathayo ukuze isitoreji siqale ukudlulisa idatha ngemva kokuthola isicelo. Ama-SSD anokubambezeleka okuphansi kakhulu (isilinganiso esingu-0.1 ms) kunama-HDD (isilinganiso esingu-5-10 ms), okusho ukuthi ama-SSD angacubungula imisebenzi eminingi yokufaka/yokukhipha ngomzuzwana (i-IOPS).
3. Ukuqina: Ngenxa yokuthi azikho izingxenye ezihambayo, ama-SSD amelana kakhulu nokushaqeka okungokomzimba okungalimaza ama-HDD.
4. Ukusebenza Kahle Kwamandla: Ama-SSD ngokuvamile asebenzisa amandla amancane kunama-HDD, okwenza asebenzise kahle amandla, ikakhulukazi kumadivayisi aphathekayo njengama-laptop.
Izinhlobo zama-SSD kanye nobuchwepheshe obusekelayo
Ama-SSD afika ngezinhlobo ezahlukene kanye nezici zokwakheka. Nazi ezinye zezinhlobo eziyinhloko zama-SSD ezivame ukusetshenziswa:
1. I-SATA SSD: Lolu kwakuwuhlobo lokuqala lwe-SSD olwamukelwa kabanzi ngabathengi. Isebenza ku-interface ye-SATA, le SSD inesivinini esiphezulu esifinyelela ku-600 MB/s. Nakuba ishesha kunama-HDD, ama-SATA SSD ahamba kancane kunama-SSD amasha.
2. I-NVMe SSD (Non-Volatile Memory Express): I-NVMe iyi-interface yokugcina eklanyelwe ngqo ama-SSD, isebenzisa imizila ye-PCIe (Peripheral Component Interconnect Express) ukuze inikeze isivinini sokufunda/ukubhala esiphezulu kakhulu (kufika ku-3500 MB/s nangaphezulu).
3. I-M.2 SSD: I-M.2 iyisici esibonakalayo esisekela izinhlobo ezahlukene ze-interface, okuhlanganisa i-SATA ne-NVMe. Ama-M.2 SSD mancane futhi angafakwa ngqo kubhodi lomama, okuhlinzeka ngokubukeka okuhlanzekile kanye nesikhala esanele esikhwameni sekhompyutha.
4. I-U.2 SSD: Le SSD isebenzisa isixhumi se-U.2 futhi ivame ukutholakala kumaseva noma ezindaweni zokusebenza ezisezingeni eliphezulu ezidinga ukusebenza okuphezulu.
Izinzuzo Zokusebenzisa i-SSD Kumakhompyutha
Ukwamukela i-SSD ekucushweni kwekhompyutha kuletha izinzuzo ezahlukahlukene ezingathuthukisa kakhulu ukusebenza kanye nolwazi lomsebenzisi:
1. Ukuqalisa Okusheshayo: Ama-SSD angathuthukisa izikhathi zokuqalisa uhlelo lokusebenza kusukela emizuzwini eminingana (ngama-HDD) kuya kumasekhondi ambalwa. Abasebenzisi abasadingi ukulinda isikhathi eside ukuze amakhompyutha abo alungele ukusetshenziswa.
2. Ukulayisha Uhlelo Lokusebenza: Izinhlelo zokusebenza ezisindayo ezifana nesofthiwe yokuhlela ividiyo, ukwakheka kwezithombe, kanye nemidlalo kuzolayisha ngokushesha, okwandisa umkhiqizo womsebenzi kanye nolwazi lokudlala imidlalo.
3. Ukudluliswa Kwefayela: Ukuhambisa idatha kusuka kwenye incwadi kuya kwenye kuyashesha, kuyasiza kakhulu lapho kuphathwa amafayela amakhulu.
4. Ukusetshenziswa Kwemisebenzi Eminingi: Ama-SSD avumela uhlelo ukuthi luphathe imisebenzi eminingi kangcono ngaphandle kokunciphisa ukusebenza kakhulu.
Umthelela we-SSD Kweminye Imikhakha
Ngaphandle kokusetshenziswa kumakhompyutha nama-laptop, ama-SSD nawo anethonya elihle kweminye imikhakha ehlukahlukene efana nalokhu:
1. Amaseva Nezikhungo Zedatha: Ama-SSD avumela amaseva nezikhungo zedatha ukuthi ziphathe izicelo eziningi ngesivinini esiphezulu kanye nokubambezeleka okuphansi. Lokhu kubalulekile ezinhlelweni zokusebenza ezifana nokusingathwa kwewebhusayithi, izizindalwazi ezinkulu, kanye nokubala kwamafu.
2. Izimboni Zokudala: Ukuhlela amavidiyo, izithombe ze-3D, kanye nezinye izinhlelo zokusebenza zokuklama kudinga ukufinyelela kwedatha okusheshayo ukuze kusebenze ngamafayela amakhulu. Ama-SSD ahlangabezana kahle nalesi sidingo, okwenza kube nokusebenza kahle kakhulu.
3. Imidlalo: Embonini yemidlalo, isivinini sokufinyelela idatha sibalulekile ukunciphisa isikhathi sokulayisha, ukuguguleka, nokuthuthukisa ulwazi lokudlala lulonke.
4. Ukuhlanganiswa Kwesofthiwe: Abahleli bezinhlelo bazobona isivinini esengeziwe ngesikhathi senqubo yokuhlanganiswa kwekhodi ngoba i-SSD ingafunda futhi ibhale amafayela adingekayo ngokushesha.
Izinselele kanye Nekusasa Lama-SSD
Naphezu kokunikeza izinzuzo eziningi, ama-SSD nawo anezinselele ezithile. Enye yalezi intengo ephezulu nge-GB uma kuqhathaniswa nama-HDD. Kodwa-ke, amanani e-SSD abonise ukwehla okukhulu, okwenza athengeke kalula ngokuhamba kwesikhathi.
Ngaphezu kwalokho, kukhona nenkinga yokuqina kwememori ye-flash esetshenziswa kuma-SSD. Iseli ngalinye lememori ku-chip ye-NAND linenani elithile lemijikelezo yokufunda/yokubhala ngaphambi kokuba yehluleke. Kodwa-ke, ubuchwepheshe obufana nokulinganisa ukuguguleka kanye nokulungisa amaphutha buthuthukiswe ukuze kwandiswe isikhathi sokuphila sama-SSD.
Ikusasa lama-SSD liqhakazile, ngocwaningo oluqhubekayo kanye nentuthuko yokuthuthukisa ukusebenza, amandla, kanye nokuthembeka. Ubuchwepheshe obusha, njenge-3D NAND kanye ne-QLC (i-Quad-Level Cell), bunikeza amandla amakhulu ngamanani aphansi.
Isiphetho
Ubuchwepheshe be-SSD sebube yindlela ejwayelekile yabasebenzisi abafuna isivinini esiphezulu kanye nokusebenza kahle kakhulu ezinhlelweni zabo zamakhompyutha. Ngezinhlobo ezahlukahlukene kanye nezici zefomu ezitholakalayo, abasebenzisi bangakhetha i-SSD efanelana kahle nezidingo zabo. Isivinini, ukuqina, kanye nokusebenza kahle kwamandla okunikezwa ama-SSD kubenza babe yingxenye ebalulekile kubuchwepheshe bamakhompyutha banamuhla. Ngokuthuthuka okuqhubekayo kwezobuchwepheshe kanye nokufinyeleleka okwandayo kwama-SSD, ikusasa lokugcina idatha yedijithali libukeka lithembisa kakhulu.
