Live Failover

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p16

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Feb 26, 2010
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Please forgive me if this has been answered. If so, I cannot find a definitive answer.

I am currently on an SBS2008 box running 3 Nodes of the newest version of Promox. First: I LOVE this product and am considering using it for a pretty large project.

Now, given the fact that I'm using Hyper-V as a test environment, I'm getting "This CPU does not support KVM virtual machines (no Intel VT / AMD-V support) " upon creation of new machines. While I feel that I can solve this in the bios, I'm not on top of my server right now, so I cannot reboot to check.

I can perform live migrations right now, which I have tested - they work perfectly fine.

I just need to know if the newest version of Proxmox supports live failovers between nodes. At the moment, it doesn't seem like it does nor do I see this on the roadmap.

Basically, if Node1 dies, and it's hosting a VM, will Node2 pick it up automagically?

Any assistance would be great. If it's my hardware causing this, that's perfectly fine.
 
PVE cluster will not create Failover environment. For this you will need to create your own failover env.

If you intend to have 2 PVE servers with identical VM, and to switch between them...sorry, but PVE will not do that for you (not now)

But, if you want to have 2 Win 2003 server VM and to create failover between them...this is possible by configurare correct the 2 Windows servers.

Another best sollution for you it's to have an external hig performance NAS server where to save daily backup for your servers. A restorre procedure for a KVM machine with 32GB take 5 minutes...maybe less.

For linux servers...the same. Rsync will solve you problems
 
Thanks for the update. While we're testing in Hyper-V, this will be either a Linux or FreeBSD environment between several physical locations. We figured we'd try the "easy" route before doing much else - basically seeing if we have to recreate the wheel or not... We've considered RSync, etc, but would love a full on auto-failover environment for virtual machines.

Thanks again.
 
Maybe an automatic failover will be availabe in the near future. There are more important task to solve until then.

But, if you have a good server (RAID10 or 5 with battery backup) you will not have problems.

To syncronise some servers between different locations...try to solve the problems by configurate cluster in your installed linux (or FreeBSD) VM's. Are availabe a lot of tutorials on the internet.

For example, Proxmox Mail Gateway can be configurate to work in Cluster...and work perfect! So it's an example about how to configure a correct cluster...

regards
 
HA is on the roadmap, we are already working on that.
 
restart, or a live migration if the host is still alive (e.g in case of a maintenance task) .
 
If a host fails, another host can power on the guest again - but only if the VM data is available on the other guest - therefore shared storage is needed (or DRBD).
 
Will DRBD be supported directly in the webinterface or would you rather recommend going for shared storage?
I'm looking a bit into the intel modular server. Will the Shared LUN feature qualify for shared storage in Proxmox?

Thanks in advance.
 
bohansen said:
Will DRBD be supported directly in the webinterface or would you rather recommend going for shared storage?
Click to expand...

DRBD: initial configuration (and management tasks in case of issues) is not on the GUI - which one is right for you? depends on your needs - DRBD is very different from shared storage, read more about it at http://www.linbit.com

bohansen said:
I'm looking a bit into the intel modular server. Will the Shared LUN feature qualify for shared storage in Proxmox?

Thanks in advance.
Click to expand...

We are awaiting a Modular Server in our test lab this week, so we will certify this hardware in detail, including configuration recommendations.
 
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