Chris, at the moment there are no native CloudStack capabilities that can provide HA across zone, but there are couple of features targeted for 4.2 release.
- GSLB will provide load balancing across the zones in active-active setup, on zone failure, traffic will be routed to active zone - AWS EIP, will provide 'static NAT' across the zones. In active-standby setup, users can change the static NAT mapping from public IP to the VM's in either active or standby zone. - Object store will provide common storage across the zones, that will provide templates, snapshots from which users can launch instances across zone. -Murali On 02/03/13 3:42 AM, "Chris Mutchler" <ch...@leibnizcreations.com> wrote: >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 >ch...@leibnizcreations.com >
