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From Caleb Call <>
Subject Re: cloudstack DataCenter Failover ???
Date Mon, 05 Nov 2012 19:04:17 GMT
We are implementing HA/Clustering using Red Hat Clustering (Ricci and Luci) for our management
server.  In our POC it seems to work great, we'll be moving it to our production Cloudsack
probably this week or next.  I'm sure this same thing could be used cross datacenters with
the proper configuration.  One thing is that the same IP range will have to exist in both
data centers.  Otherwise all your instances will be fired up with new IPs and you wouldn't
really be able to do a true HA of the management node/mysql database as the configs would
be different.

On Nov 5, 2012, at 2:12 AM, Ivan Rodriguez <> wrote:

> Dear Fellows,
> We are thinking in the possibility of having cloudstack in 2 different
> datacenters, and have some sort of failover datacenter configuration,
> imagining that we have  a really low latency link may be less tan 2 ms, and
> that we can do synchronous replication of the storage primary and
> secondary, may be asynchronous should work to,  I was thinking that we
> could replicate the mysql cloudstack config into a master/slave and use may
> be HA or some other process, to detect if the primary cloudstack is down
> then change our slave to master and let the agents connect to the
> management console, after that cloudstack should be able to fired up all
> the vm's and since the network will be and exact copy should work in theory
> right ?,
> Is anybody doing something similar ?
> Cheers
> Ivan

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