Virtualbox SBS 2008 guest freezes


We have a virtualbox VM running SBS 2008 running on an XP pro 64 bit host.
Since installed the server has been unstable. Now it freezes once each 2 days or less.

No error logs, no clue.

We tried all 3.X virtualbox versions and same thing. Tried lowering from 2 cores to 1 core.
Nothing seems to work.

Any help would be really appreciated.
reliantcorpAsked:
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Cliff GaliherCommented:
My personal experience is that VirtualBox does not run Windows Server 2008 well at all when the guest OS is under *any* load. A very small lab may work, but SBS even in a lab introduces heavier load so I'm not surprised it is failing. Use a supported host solution (Hyper-V, VMWare) and you'll have better luck.

Or, move to SBS 2011, which runs on 2008 R2, which also seems to play better with virtualbox.

-Cliff
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
What specification is your virtualbox host, what resources (CPU, Memory) have you defined to the virtual machine.
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Rob WilliamsCommented:
I am not familiar with Virtualbox, but if it is an XP host, how much RAM were you able to assign the SBS?
Also make sure you don't have anti-virus software on the host scanning the VM.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Any Type 2 Hypervisor, will give poor performance, VMware Workstation, Player, Server, Virtualbox, Virtual Server etc

So try a Type 1 Hypervisor, but you'll need bare metal for that.

To be honest, Windows XP Pro 64 bit, probably not too good either, but if that's all you've got to work with, let me have answers to my questions.
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reliantcorpAuthor Commented:

We decided to use virtualbox because we use Shadowproect for backups and want to use the virtualboot feature of shadowprotect (which works with virtualbox)

We chose XP pro 64 bit for budget reasons

XP host has a quadcore and 16GB of ram. The VM has 2 cores and 4GB assigned.

Thanks !!
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
I would add more memory to your VM.
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Rob WilliamsCommented:
I agree. The minimum for SBS is 4GB but in reality even in a test environment 5-6 is considered bare minimum with SBS 2008
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Cliff GaliherCommented:
Well, as I said, VirtualBox is particularly unkind to SBS 2008. If it were me, I'd use VMWare or Hyper-V (both supported parents for SBS) and use SC's image conversion tool when necessary. The conversion is very fast thus the amount of time to failover is similar.
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reliantcorpAuthor Commented:

Sorry, It actually has 6GB. Im gonna raise that anyway and let you know what happens.

cgal, what is SC's image conversion tool ?
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reliantcorpAuthor Commented:

Could Virtualbox performance be compared with using qemu without KVM or kqemu ?
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Cliff GaliherCommented:
StorageCraft (SC) has an image conversion tool as part of their ShadowProtect product. It converts their backup images to .vhd (for Hyper-V) or .vmdk (vmware) for use with those hypervisors.

Virtualbox is much faster and more stable than qemu. I would never rely on qemu for running any production server, even in a DR scenario.
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reliantcorpAuthor Commented:

Yes, I supposed so. Did you test KVM ? any better performance than virtualbox ?
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Cliff GaliherCommented:
Haven't used it.
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reliantcorpAuthor Commented:
accepted
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Glen KnightCommented:
This question has been classified as abandoned and is being closed as part of the Cleanup Program. See my comment at the end of the question for more details.
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