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create redundancy in two virtual machines

By madiranurali ·
hello everyone,

im kind of new to this field, so i was seeking some expert knowledge!!!!!

one of my friend told me that it is possible to use two virtual machines in a way that if one machine get crashes while working, the other machine can automatically take over from where it stops.

someone told me there is a software to do that, but i wanted to do it without a software support, coz if the software get crashes everything get stuck!!!!!

so plzzz, give me some advice on my problem as how to configure my virtual machines to get this done.



P.S im running the virtual machines in ubuntu environment

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"do it without software"???

by CharlieSpencer In reply to create redundancy in two ...

"someone told me there is a software to do that, but i wanted to do it without a software support, coz if the software get crashes everything get stuck!!!!!"

Dude, virtual machines are 100% software. You have to use software to create and run virtual machines. That's what "virtual" means; a virtual system doesn't physically exist. It's a couple of files run by a virtualization software program.

If redundancy is your goal, you want to use two different boxes in case the hardware crashes. VMware makes virtualization software you can purchase for Windows that will allow a virtual machine to fail over to a virtual machine on a different physical server, but it isn't cheap. I don't know if VMware makes that product for Linux, or if there are no-cost solutions. Maybe someone else here can answer.

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I think the OP is also referring to clustering as well

by ManiacMan In reply to "do it without software"? ...

VMWare allows for setting up a cluster in a box without requiring an actual external drive cage. I know because I have an HP server runing at home with VI3 and clustered Windows 2003 and Exchange in a 2 node active/passive setup.

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In Progress

by r3l1c In reply to create redundancy in two ...


I am currently working on a how to for this. I am using Ubuntu as a host. My tutorial is setup to clone an Hardware based system with a virtual machine. The current how to is a little weak and unorginaized as I am still working on testing some parts of it.

It can be found here:

To sync the drive on one Virtual Machine you would just mount the two virtual disk and rsync between them.

If you are using windows there is software for mounting the drives, then you could use cygwin and rsync to create a fast sync between the two.

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