Ukubuyisela isithombe se-VM: okubuyiselwayo nokungabuyiselwa
Isithombe se-VM sibuyisela isimo sediski nenkumbulo yesivakashi, hhayi izenzo zama-akhawunti akude, amakhophi amafayela abiwe noma amarekhodi agcinwe kwenye indawo: qala ngokuchaza ubukhulu bokubuyisela.
Iphoyinti lokuhlola libuyisela ingxenye yesivakashi emuva futhi lishiye yonke enye isistimu endaweni eyayikuyo. Lokho okwaphuma kwisivakashi — umyalezo olethiwe, ifayela elikhophulwe kusibungazwa, isenzo se-akhawunti esamukelwe iwebhusayithi — kungokwesistimu eyakwamukela, hhayi eyephoyinti lokuhlola. Ukubuyisela kunobukhulu bendawo obuchaziwe, futhi ukukubiza ngokuthi ukususa kwenza uhlelo lokubuyisela lube yisitatimende esingamanga. Ithebula elingezansi uhlu lokuhlola lwalokho ukubuyisela okufinyelela kukho ngempela.
Ideskithophu iyabuya, iseshini ekude ayibuyi
Isikhalazo esivamile siza ngemva kwesigameko. Umshini ongokoqobo uqala esimweni sesonto eledlule, umlando wesiphequluli awukho, futhi insizakalo umsebenzisi angene kuyo isabala iseshini njengesebenzayo. Akukho okwephukile; zombili izistimu azikaze zibe kumsebenzi owodwa.
| Where the effect landed | Who owns undoing it | How you verify it is gone |
|---|---|---|
| Guest virtual disk | The hypervisor, through the checkpoint you restore | The disk state matches the checkpoint's timestamp |
| Guest memory | Only a checkpoint type that saved memory | The guest resumes or cold-boots, as that type dictates |
| Host share or clipboard | The owner of that host path | The copied file is absent at its destination |
| Remote account or session | The service that accepted the action | The session list shows nothing active for that account |
| Mail or message queue | The mail system that delivered it | The message is gone from the recipient's mailbox, not from the guest |
Lokho kungafani kuyisifundo. Iphoyinti lokuhlola libuyisela lokho i-hypervisor ekulandelelayo: ihadiwe ebonakalayo yesivakashi futhi, kuye ngohlobo, inkumbulo yayo. Ayilandeleli ithebula lamaseshini lohlelo lwewebhu, umugqa wokuletha weseva yemeyili noma ifolda yokulanda yozakwethu. Funda uhlobo ngaphambi kokubuyisela, ngoba uhlobo lunquma ukuthi ukubuyisela kungabuyisa ini nhlobo.
Lokho i-hypervisor ekugcine ngempela
Imibhalo ye-Hyper-V yakwa-Microsoft yehlukanisa amaphoyinti okuhlola ajwayelekile, athwebula inkumbulo kanye namadiski abonakalayo, kusukela kumaphoyinti okuhlola okukhiqiza, asebenzisa indlela ehambisana nedatha futhi eqa inkumbulo. Iphoyinti elijwayelekile liqhubeka kusukela kumyalo owawusetshenziswa isivakashi; elokukhiqiza liqala ediskini elihambisanayo esikhundleni salokho. Lowo mehluko unquma ukuthi ukubuyisela kubuyisa inqubo esebenzayo noma ukuqala okuhlanzekile. Ungadlulisi ukuziphatha kwe-hypervisor eyodwa kwenye, ngoba amagama nendlela yokuhambisana kuyahluka phakathi kwemikhiqizo.
I-Microsoft iphinde ixwayise ngokuthi iphoyinti lokuhlola akulona ikhophi yokuphepha, futhi leso sixwayiso sibalulekile. Uchungechunge lwamaphoyinti okuhlola kuvolumu eyodwa lwabelana ngesiphetho saleyo volumu, ngakho luvikela ekushintsheni okubi, hhayi kusibungazwa esilahlekile.
Amafayela ahlala ngaphandle kwediski lesivakashi
Ifolda ebiwe iwuhlelo lwamafayela lwesibungazwa olwethulwa kwisivakashi, futhi ukubuyisela isivakashi akukubuyiseli. Uma umsebenzisi elande ifayela ngaphakathi kwesivakashi futhi walikhopha waphuma ngalo ngendlela ebiwe, lelo khophi lesibili linomjikelezo walo wokuphila nomnikazi walo. Ukubuyisela isivakashi kususa ikhophi lokuqala futhi kushiya elesibili khona lapho kwafakwa khona.
Buza ukuthi ngubani umnikazi wendlela ngayinye ngaphambi kokuthembisa ukubuyisela. Ukwabelana kwesibungazwa, ukudluliswa ngebhodi yokunamathisela kanye nokulayisha kudiski lamafu kuyizindawo ezintathu, futhi eyokuqala kuphela engaba seduze nesitoreji se-hypervisor.
Lapho ikhophi kufanele lisuswe ngempela, lisuse endaweni eliya kuyo futhi ubhale leso sinyathelo ngokwehlukana. Uhlelo lokubuyisela olubala isithombe kuphela aluphelele ngendlela okungekho okuqaphelayo kuze kutholakale ikhophi. Ukucophelela okufanayo kusebenza kumarekhodi abhalwe isibungazwa ngesikhathi isivakashi sisebenza.
Ama-akhawunti i-hypervisor engakaze iwabone
Noma yini insizakalo eyayamukela kwisivakashi ingumrekhodi wensizakalo, hhayi owesivakashi. I-hypervisor ayikaze ibone lowo msebenzi, ngakho ayikwazi ukuwuhlehlisa. Ukushintshwa kwephasiwedi, ukuthenga, umyalezo oshicilelwe kanye nocingo lwe-API konke kuhlala kusistimu eyakucubungula. Ukubuyisela isithombe sediski akufinyeleli kuleyo sistimu.
Isimo sesiphequluli senza ukungafani kube okubonakalayo. Isivakashi esibuyiselwe singase sibambe ikhukhi endala yensizakalo eseshintshe iseshini kusukela lapho, ngakho umsebenzisi ubonakala engene futhi enqatshwa buthule, noma ubonakala ephumile kuyilapho insizakalo isabheka iseshini njengevumelekile. Ukuhoxisa iseshini ensizakalweni ukuphela kwesenzo esiyiqedayo.
Lokho ukubuyisela okungeke kukuhlehlise
Iphoyinti lokuhlola liwusizo ekuhloleni okuvunyiwe noma ekuhloleni kokucushwa okukuqondakalayo ubukhulu bakho. Kungukuhlehlisa kwendawo yesimo sendawo, isethembiso esincane kunalokho okuzwakalayo, futhi akubona ubufakazi bokuthi isibungazwa, i-hypervisor noma noma yisiphi isistimu yangaphandle sahlala sihlanzekile. I-VPN ishintsha indlela amaphakethe ahamba ngayo; ayenzi isoftware engaphakathi kwesivakashi iphephile ukusebenza. Izimangalo ezimbili zihlukene futhi eyodwa kuphela ekhuluma ngomhubhe.
$cp = Get-VMSnapshot -VMName lab-desktop -Name baseline
Get-VMHardDiskDrive -VMSnapshot $cp | Select-Object ControllerType, ControllerNumber, ControllerLocation, PathUmgqa wokuqala uxazulula iphoyinti lokuhlola libe yinto, futhi owesibili ubala amadiski eliwuhlanganisayo, okuphendula umbuzo wobukhulu ngobufakazi hhayi ngenkumbulo. Phendula futhi uhoxise imfihlo evezile ensizakalweni eyinikaziwe. Lapho kukhona ikhodi enobungozi eyaziwayo, sebenzisa indawo yophenyo egunyaziwe nenqubo yokuphendula yenhlangano esikhundleni sokucabanga ukuthi isithombe senza ukusebenza kuphephile.
Bhala izinto ezintathu ngaphambi kokubuyisela: yisiphi isimo sesivakashi osibuyisayo, yiziphi izistimu zangaphandle ezisabambe umphumela, futhi yiliphi iphoyinti ozokwethemba ngemva kwalokho. Lolo hlelo isitatimende esinamandla kunomshini obonakala ujwayelekile futhi. Gcina kanye nethikithi ukuze ukubuyisela okulandelayo kuqale ohlwini olufanayo.