Kwaye uyazi yintoni RAID-uluhlu lokulwa?

Ukuthembeka yokugcina data - yenye yeengxaki ezibalulekileyo kwaye mlonyeni kwiinkqubo zekhompyutha. Ngoko ke, iinzame zophando kuye kwanikelwa ingqalelo kule nkalo, kwaye ngenxa yoko kukho ubugcisa yokwakha ukuze RAID-kwimiboniso, leyo, nakubeni oko wenza kwiminyaka embalwa edlulileyo kakhulu ezifanelekileyo kwimfuno ngexesha elinikiweyo.

Makhe zama ukufumana phandle uhlobo zobugcisa. Okokuqala, makhe ukuchaza ixesha engundoqo. Ngenxa yoko, RAID-uluhlu - ukuba uhlobo iseti ogcweleyo of disks ezizimeleyo asetyenziswa ukuphucula misela kunye nokusebenza kweenkqubo zekhompyutha. Eyokuqala ifunyanwa ngenxa komsebenzi, kwaye eyesibini - ngenxa ukusebenza ngaxeshanye drives, leyo sidalwe uluhlu. Kufuneka kuqatshelwe ukuba inkqubo RAID-uluhlu isetyenziswa njenge diski eyodwa yi impefumlelwano-software ne -hardware.

Ukuze uphendule lo mbuzo ye indlela yokwenza RAID-uluhlu, kufuneka kuchazwe ukuba kukho utshintsho ezininzi ezahlukeneyo (amanqanaba), ukuphunyezwa elandelwayo exhomekeke nokucwangciswa akwazi. Utyando iyonke drives kunokwenziwa amalungiselelo kunye nokuba ukufana okanye ukufikelela elizimeleyo. Kwimeko yokuqala, ulwazi Ngokushicilela isithuba kwidiski wohlulwe ngezithandelo (iiyunithi), ngoko leyo kuwa phezu disks ezahlukeneyo emzimbeni (yokusebenza kunyuswa njengemicwana recording ngaxeshanye). Xa ufunda ulwazi njengoko yonke imisebenzi iibhloko, nto leyo inegalelo ukwandisa nangakumbi ukusebenza kwenkqubo enjalo. Ngaphezu koko, kokukhona drives, intsebenzo iya kuba RAID-uluhlu. Kodwa kukho bokuqonda. Akwenzeki ukuba alungiselele inkqubo enjalo, ukuba ubukhulu block mkhulu ubungakanani ulwazi yesicelo bhala.

Kwimeko apho ukufikelela ozimeleyo eyahlukileyo zonke iinkcukacha ezifakwe isicelo umsebenzisi ngendlela efanayo nalamazwe omnye diski ubhalo, kodwa ngokungafani imeko yamva, xa umsebenzi ukufunda sele yenziwe kwi disks ezahlukileyo (separate).

Ngelo thuba kukho iindlela ezininzi umgangatho yokulungelelanisa (amanqanaba) inkqubo efana RAID-uluhlu. Bona ukusuka-0 ukuya ku-6, yaye wabhekisela, ngokulandelelana, RAID 0, RAID 1, njalo-njalo. Nto ithetha ukuba, amanqanaba entswelan amaninzi kusetyenziswa: 0, 1, 3, no-5.

Ngoko ke, ukuze bakwazi ukusebenzisa kakuhle zangaphandle RAID-uluhlu, kufuneka ube amacandelo amabini: RAID-isilawuli, wenza imisebenzi nokusasazwa kolwazi engenayo, unxibelelwano kunye iseva, ivelisa iinkcukacha ezingasafunekiyo, kunye naluphi na uluhlu lwe nzima drives. Oku kwaziwa njenge ukhetho zekhompyutha ukwenza RAID-uluhlu. Kodwa asiyiyo yodwa indlela yokucwangcisa adume ngazo. Ukwakhiwa kwenkqubo enjalo yenzeka ngenxa bume software ebizwa njalo-. Kulo ngobuwena, lo RAID yenziwa usebenzisa izixhobo ezizodwa ixhaswa yenye okanye enye inkqubo yokusebenza. Engxakini impumezo enjalo kukuba PC software CDN ilahlekile, zonke iinkcukacha ezigcinwe kwi-ubhalo RAID-adume ngazo. Ukongeza, kufuneka sikhumbule ukuba software uyakwazi ukwakha uluhlu lwe kuphela yokuqala kunye kwinqanaba zero.