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Hi All, Forgive me if this was discussed last week I’m new... I currently run two servers, one for mail, one for web + db,
but will be expanding In future so a virtual architecture seems a good idea,
especially if I can run the VM’s on any of the physical machines on the fly as load /
failures dictate. Ideally this would all be automatic and the VM’s would share processor /
storage transparently amongst available machines, and I would also like to add extra
storage as necessary without having to rebuild arrays or reinstall stuff. I’d like to replace the os on both physical machines with
minimal fedora 8 + xen and run the mail / web / db services inside VM’s.
I’ve got a F9 system running inside a VM on the mailserver now but don’t know how to get it
running on both machines as I’m not sure what’s possible with exporting / sharing VM
settings. For now, What I need is to be able to run the image of the
F9 system on my web box when the mail server crashes so that the mail server is
still available should the physical mail server break. My thinking was if both machines just run a minimal system +
the VM’s then the other disks in the machines can be running a raided gfs
across both machines to provide a redundant storage system that can survive a
machine failure. Hopefully then should a box pack up I can still run all my
services in VM’s on a single machine since the VM images will be available to both
machines on the shared filesystem. I don’t even know which parts of this are possible or
whether its a bad strategy, perhaps there’s a better approach to all of this, ideas welcome, Thanks, Jack |
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