Ukuhluleka Ukubekezela Ngokushesha Ukufunda Izikhathi
I-RAID 5 yindlela yokubala ye-RAID eyenzelwe ukwandisa ijubane lokufundwa kwe-disk bese ubhala. I-RAID 5 ifana ne-RAID 3 ngoba isebenzisa ibanga lokubambisana ukuze kusize ukuqinisekisa ubuqotho be-data. Nokho, ngokungafani ne-RAID 3, esebenzisa i-disk ezinikezele ukugcina ubunye, i-RAID 5 ihambisa ubunye kuwo wonke amashayela ohlwini.
I-RAID 5 inikeza ukubekezelelana kwe-drive ukwehluleka, okuvumela noma yikuphi ukushayela okukodwa kuhlelo lokuhluleka ngaphandle kokulahlekelwa yimuphi idatha ohlwini. Uma idrayivu ihluleka, i-RAID 5 i-array ingasetshenziswa ukufunda noma ukubhala idatha. Uma i-drive engaphumeleli ishintshiwe, i-RAID 5 i-array ingangena imodi yokutakula idatha, lapho idatha yohlu oluhlanganisiwe isetshenziselwa ukwakha idatha engekho emotweni esanda kufakwa.
Ibala ububanzi be-RAID 5
Ama-RAID 5 amasha ayisebenzisa okulingana nedrayivu yokugcina ubunye, okusho ukuthi ubukhulu bomugqa jikelele bungabalwa ngokusebenzisa ifomula elandelayo:
S = d * (n - 1)
I "d" iyisayizi encane kunazo zonke sediski, futhi "n" yinombolo yama diski akha i-array.
Ukusetshenziswa okungcono kakhulu kwe-RAID 5
I-RAID 5 iyisinqumo esihle sokugcina ifayela le-multimedia. Isivinini sayo sokufunda singaba sikhulu kakhulu, kanti isivinini sokubhala sihamba kancane, ngenxa yesidingo sokubala nokusabalalisa ubunye. I-RAID 5 ihamba phambili ekugcineni amafayela amakhulu, lapho idatha ifundwa ngokulandelana. Amafayili amancane, ama-random afinyelelwe ngokungahleliwe asebenzisana nokufunda okujwayelekile, futhi ukubhala ukusebenza kungaba mpofu ngenxa yesidingo sokuvuselela kabusha nokubhala kabusha idatha yohlu lomsebenzi ngamunye wokubhala.
Nakuba i-RAID 5 ingahle isetshenziswe ngobukhulu be-disk obukhulu, engacatshangwanga indlela ekhethwa kusukela usayizi we-RAID 5 we-array uzochazwa ngediski encane kunazo zonke (bheka ifomula ngenhla).
Ngenxa yesidingo sokwenza izibalo zobungani futhi usakaze ukubalwa okuphelile, i-RAID 5 iycono kakhulu uma isetshenziselwa ukufakwa kwe-RAID okusekelwe kwi-hardware. Uhlelo lokusebenza lwe- Disk Utility olufakwe ne-OS X alusekeli ukudala izigaba ze-RAID 5 ezisekelwe kwesofthiwe, noma kunjalo, i-SoftRAID, evela kumsunguli wesithathu we-SoftRAID, Inc., ingasetshenziswa uma kudingwa isisombululo esekelwe software.