Uma kuziwa ekuguquleni iseva engokwenyama ibe iseva ye-virtual, ukukhetha nokususa ingqalasizinda yesiphakeli esifanele yokusingatha imishini ebonakalayo kungaba yinto ekhohlisayo. Lokhu kungabaza okuvamile ukuthi ubuso obunikazi be-IT, uma becubungula izinketho ze-hardware kumabandla abo abonakalayo.
Ukuqinisekisa Izinsiza Ezifanele
Uma ulinganisela isiteji, isidingo esiyisisekelo sokubamba amaseva we-virtual ukuthi sibe nezinsiza ezanele ukuze uhlangabezane nezidingo zomshini wokugcina. Lokhu kungashintshi ngokuyisisekelo kubo bonke abathintekayo: umphathi womzimba unikeza izinsiza kuwo wonke umshini we-virtual. Imishini eyi-Virtual iqukethe amaqembu amane okudla: inkumbulo, i-CPU, inethiwekhi kanye nemithombo yediski. Ngokuvamile, lezi zici ezimbili zobuhlungu ziyi-disk ne-RAM.
Ukukhethwa Kwedrayivu Kanzima
Kunezilinganiso ezimbili ze disk: ukusebenza kanye nomthamo. Uzodinga okungaphezulu kwalokhu kokubili kunalokho ocabanga ukuthi kuyadingeka ukusingatha imishini ebonakalayo. Thola futhi usho izidingo zokusebenza (IOPS) zokugcina isitoreji ngaphezu kokufaka. Kumelwe futhi unikeze amandla okudinga okungaphezulu okudingekayo ukuze uthole ukusekela imishini ebonakalayo.
Qaphela i-Disk Caches
I-RAM noma imemori isetshenziswa njenge-disk cache yizinhlelo eziningi zokusebenza, kodwa akubikwa njengokusetshenziswa. Uma uhluleka ukulinganisa imvelo yemishini yakho ebonakalayo ukulungiselela le cache, ingabangela ukusebenza okungalungile kwesicelo. Ngenxa yalokhu iphutha, izikhungo zedatha eziguqula amaseva engokwenyama zibe yiqiniso zizobuyela ezingqalasizinda ezingokwenyama.
Indlela elula yokukhetha ingqalasizinda ephelele ukufaka i-hardware kuzo zonke izingosi zomzimba ozifaka emshinini wemishini. Ungathenga izinsiza ezanele, ukuze uhlangabezane nenani lezinsiza ezifakiwe, nakuba lokhu kungase kube yindleko enzima.
Ukuqapha ukusetshenziswa kweMithombo
Enye indlela ukugcina iso lokusetshenziswa kwezidingo. Uma wazi ngomsebenzi wakho ongcono, kungenzeka ukuthi usayizi weplatifomu ye-virtualisation ngendlela engcono. Thola inani lemithombo ngayinye empeleni edlalwa ngumshini womzimba bese wengeza lezi zibalo. Kufanele uthenge i-hardware eyanele ngenani lokusetshenziswa okujwayelekile. Qinisekisa ukuvumela ukunqoba okuncane njengoba ukhetho lwakho lwe-hypervisor ludinga izinsiza zokusingatha imishini ebonakalayo eqhubekayo.
Kuzo zonke izinyathelo, kukhona okwamanje izinsiza ezifanele kuwo wonke umshini. Qaphela nje ukuthi imishini engokwenyama ayenzi ngokwanele futhi ucabange ngemishini efuna izinsiza eziningi uma uyenza kahle. Futhi, gcina isabelomali esengeziwe salezi zinsiza ezingeziwe, ngoba izinto zingahamba kahle uma ungabala ukuthi kukhona okungeziwe.
Kungcono ngaso sonke isikhathi ukuthatha izidingo zamandla aphezulu ku-akhawunti ukuze kungadingeki ukuthi ukhawule imithombo yakho, futhi ulahle isidingo sokuthenga amaseva engeziwe ngomzuzwana wokugcina, ongaphinda uphonse amaphakheji akho ngokuphawulekayo.
Ngakho-ke, uma uhlolisisa amaphuzu ashiwo ngenhla, kungase kube nzima ukukhetha ingqalasizinda engokwenyama edingekayo yokubamba i-VMs.