Icandelo I: Ukusebenza
Imidiya ehleliweyo okanye ukugcinwa kwediski ekhuni yintengiso enkulu kunye eyahlukeneyo. Iimoto ezinzima ezivela kumgangatho ophezulu wee-server ezihamba phambili eziya ezincinci ezincinane malunga nobukhulu bekota. Kuzo zonke iindidi zokuqhuba ngaphandle kweemarike, umntu uhamba njani ngokukhetha i-drive efanelekileyo yekhompyutheni?
Ukufumana i-drive efanelekileyo kuya kwehla ukuze ukwazi ukuba ufuna ntoni kwi-drive. Ingaba ukusebenza kuqhuba ikhompyutha? Ngaba amandla onke okubalulekileyo? Okanye ngaba i-aesthetics? Ezi zezigaba zintathu eziphambili zokuhlola nayiphi na i-hard drive kwimarike. Ndiyathemba ukuba esi sikhokelo sinokukunceda ukuba ungubani na kule miba engxaki kunye nendlela yokujonga ngayo xa uthenga i-hard drive yakho elandelayo .
Ukusebenza
Ukusebenza kuyona nto ibangela ukukhetha ukhetho lwabantu abaninzi. I-drive enokukhawuleza iyichukumisa ngqo yonke imisebenzi yakho yekhompyutha. Ukusebenza kwe-Hard drive ngokuqinisekileyo kunqunywe ziimpawu ezine eziphambili ze-drive:
- Interface
- Ukujikeleza kwezityalo
- Ixesha lokufikelela
- Uluhlu lweBuffer
Interfaces
Kukho izibini ezibini eziphambili ezisetyenziselwa ukuqhuba iikhompyutheni zobuqu kwiimarike: I-Serial ATA (SATA) kunye ne-IDE (okanye i-ATA). Kukho umbane we- SCSI owawusetyenziswe ngaphambili kwii-desktops eziphezulu zokusebenza kodwa oku kuye kwaye kwasuswa kwaye ngokuqhelekileyo kusetyenziswa kuphela ukugcinwa kweseva.
I-interfaces ye-IDE yindlela eqhelekileyo yobume bekhompyutha efumaneka kwiikhompyutheni zobuqu. Kukho inani lezantya ezikhoyo kwi-IDE ukusuka ku-ATA / 33 ukuya kwi-ATA / 133. Uninzi lwabaqhubi luxhasa ukufikelela kwi-ATA / 100 ephezulu kwaye buya kuhambelana neempendulo ezidala. Inombolo kwenguqu ibonisa ukugqithiswa kwamanqabttes kumargabytes ngomzuzwana umsebenzisi unako ukuphatha. Ngaloo ndlela, i-ATA / 100 ikhonkco inokuxhasa i-100 MB / sec. Okwangoku akukho i-drive ekhuni ekwazi ukufikelela kumazinga okutshintshwa okuqhubekayo, ngoko nayiphi into engaphaya kwe-ATA / 100 ayifuni.
KwiiMpahla ezininzi
Impendulo enkulu kwizinga le-IDE yindlela elawula ngayo amacebo amaninzi. Umlawuli ngamnye we-IDE unamashaneli angama-2 anokunika inkxaso amadivayisi ama-2. Umlawuli kufuneka athethele isivinini sakhe kwisixhobo esicothayo kwiseshini. Yingakho ubona izithuthi ezi-2 ze-IDE: enye yokuqhuma kanzima kunye nesibini ukwenzela ukuqhubela i-optical drives. I-drive ekhuni kunye ne-optical drive kwisiganeko esifanayo kwisiphumo somlawuli ukukhawuleza ukusebenza kwayo kwisantya se-drive ye-optical esonakalisa ukusebenza kwe-drive drive.
Serial ATA
I-Aerial ye-serial yindlela entsha kunye kwaye ibeka i-IDE ngokukhawuleza kwiimoto ezinzima. Isixhobo esibonakalayo esilula sisebenzisa ikhefu nganye nge-drive kwaye isantya esusela kwi-150 MB / s ukuya kwi-300 Mb / s kwiinguqulelo zakutshanje. Ukufumana ulwazi oluthe xaxa kulo mboniso, funda i- serial ATA kwinqaku .
Ijubane lokujikeleza kweediski kwiimoto ziyinxalenye enkulu ekusebenzeni kwidrayivu. Iphakamileyo isantya sokujikeleza se-drive, ngaphezulu kwedata i-drive ingafunda kwaye ibhale ukusuka kwi-drive kwisixa esicwangcisiweyo sexesha. Ukufudumala kunye nengxolo yilezi zimbini ezenziwa ngejubane eliphezulu lokujikeleza. Iimpembelelo zokufudumala ukusebenza kwe-electronics ngaphakathi kwikhomputha, ngakumbi ukuba kukho ukungena kwamandla. Izaziso zingabangela iziphazamiso kubantu abakwikhompyutha okanye kwiikhompyutha. Uninzi lwekhompyutheni ekhompyutheni yekhompyutha lujikeleza nge-7200 rpm. Ezinye izithuthi eziphambili ze-server zigijima kwi-10,000 rpm.
Ixesha lokufikelela
Amaxesha okufikelela afaka ubude bexesha kuthatha idrayivu ukubeka ikhanda lokuqhubela phambili kwisitya ngokufanelekileyo. Kukho amaxesha amane okufikelela ekubhalwe kuwo onke amashishini asebenzayo kwimarike:
- Funda U kufuna
- Bhala U kufuna
- I-Track-to-Track
- Stroke epheleleyo
Zonke ezine zibalwe kuma-millisecond. Ukufunwa ukufunwa ngokuqhelekileyo ixesha eliqhelekileyo lithatha ukuhambisa ikhanda kwisimo esinye kwi-drive ukuya kwesinye ukufunda idatha kwi-drive. Bhala ufune yimalinganiselo yexesha elithatha i-drive ukuhambisa kwisikhala esingenanto kwi disk uze uqale ukubhala idatha. I-Track-to-track iyinani eliphakathi kwexesha idrayivu ithatha ukuhambisa intloko ye-drive kuyo nganye ithrekhi yokulandelelana kwi-drive. Ukwaziswa okupheleleyo yimalini yexesha elithatha ikhanda lokuqhuba ukuhamba ukusuka ngaphandle ukuya kwingxenyana yangaphakathi yedisk okanye ubude obupheleleyo bendwendwe yentloko ye-drive. Kuzo zonke ezi, inamba ephantsi ithetha ukusebenza okuphezulu.
Isigqibo sokugqibela esichaphazela ukusebenza komqhubi okhuni yimalini ye-buffer kwi-drive. Umqhubi we-drive ngumlinganiselo we-RAM kwi-drive ukugcina idatha efikelelwa rhoqo kwi-drive. Ekubeni i-RAM ihamba ngokukhawuleza ukudlulisa idatha kune-operation head head, yandisa ijubane le drive. I-buffer ngaphezulu kwi-drive, idatha engaphezulu ingagcinwa kwi-cache yokunciphisa inani lomsebenzi wokusebenza ngomzimba. Uninzi lwabaqhubi namhlanje luza kunye ne-8MB drive buffer. Ezinye iimoto zokuqhuba ezi zinto ziza kunye ne-16MB ye-buffer.