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From Chris Mutchler <>
Subject HA across zones
Date Fri, 01 Mar 2013 22:12:03 GMT
What capabilities does CloudStack current have surrounding HA across
availability zones?

I am trying to figure out how best to have failover between sites. I could
accomplish this by mirroring two clusters across zones and using BGP
anycast routes to announce the presence of the resources from both zones.
The primary storage would need to be replication between the two
environments (thinking iSCSI here). I can see that working, assuming the
backbone between zones is great enough to replicate the data between the
two locations quickly enough.

The other possibility is if CloudStack provided away for me to target
another cluster in a second availability zone to bring online the virtual
resources. Again, some sort of primary storage replication would need to be
in place to have the actual data the VMs need.

Does CS make a recommendation on how to solve this problem already? Thus
far, I have been unable to find an adequate answer via the documentation or
Google (also I lack the resources today to stand it up and test for myself).

Thank you in advance for your assistance.
Chris Mutchler

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