Ukungaphumeleli Ukunyamezela Ngokukhawuleza Funda amaxesha
I-RAID 5 yinqanaba le-RAID elenzelwe ukwandisa isantya se diski kwaye ibhala. I-RAID 5 ifana ne-RAID 3 ngokuthi isebenzisa ubuncinane benkxaso ukunceda ukuqinisekiswa kwengqibelelo yedatha. Nangona kunjalo, ngokungafani ne-RAID 3, esebenzisa i-disk ezinikezele ukugcina ubunye, i-RAID 5 ihambisa ubungqina kubo bonke abaqhubayo kwi-array.
I-RAID 5 inikezela ukunyamezela kokushiya umqhubi, ukuvumela nayiphi na idrayivu enye kwi-array ukuba iphumelele ngaphandle kokulahlekelwa nayiphi na idatha kwifom. Xa i-drive ihluleka, uluhlu lwe-RAID 5 lungasetyenziselwa ukufunda okanye ukubhala idatha. Emva kokuba i-drive engaphumeleli ithathe indawo, indawo ye-RAID 5 ingayifaka imodi yokubuyisela idatha, apho idatha yedityaniselo kwi-array isetyenziselwa ukuvuselela idatha engekhoyo kwi-drive entsha esanda kufakwa.
Ukubala ubungakanani be-RAID 5
I-RAID 5 i-arrays isebenzisa elilinganayo nedrayivu yokugcina ubumbano, oko kuthetha ukuba ubungakanani bomlinganiselo obanzi bungabalwa ngokusebenzisa le fomu elandelayo:
S = d * (n - 1)
I "d" yincinci encinci yedisk kwi-array, kwaye "n" yile nombolo yama diski eyenza uluhlu.
Usetyenziso olungcono kwi-RAID 5
I-RAID 5 yinto efanelekileyo yokugcina ifayile ye-multimedia. Isantya sawo sokufunda sinokuphakama kakhulu, ngelixa isivini sokubhala sihamba ngokukhawuleza, ngenxa yemfuneko yokubala nokusabalalisa ubunye. I-RAID 5 ihamba phambili ekugcineni iifayile ezinkulu, apho idatha ifundwa ngokulandelana. Okuncinci, iifayile ezifake ngandlela-thile zikwazi ukusebenza ngokungaqhelekanga, kwaye ukubhala ukusebenza kunokusweleka ngenxa yesidingo sokuphindaphinda nokubhala kwakhona idatha yedityaniselo nganye yokubhala.
Nangona i-RAID 5 ingaqaliswa ngokukhululeka kwee disk, ezingacingwa njengendlela ekhethiweyo ukususela ngobukhulu be-RAID 5 buza kuchazwa ngediski encinci kwisethi (jonga ifom apha ngasentla).
Ngenxa yesidingo sokwenza izibalo zobungakanani kunye nokusabalalisa ukubalwa okubangelwayo, i-RAID 5 iyona nto ibhetele xa isenziwa kwii-RAID ezisekelwe kwi-hardware. Uhlelo lokusebenza lweDisk Utility olubandakanya ne-OS X aluxhasi ukudala izixhobo ze-RAID 5 ezisekhompyutheni, nangona kunjalo, i-SoftRAID, evela kumqhubi wesithathu weSoftRAID, Inc., inokusetyenziswa xa isisombululo esisekelwe kwisofthiwe siyadingeka.