Zone Failover or restore

We have started using zones recently ( Sparse zone ). Spark , sol 10.
all is working well but now i am thinking of failover and restore.
I have one box with all the stage env running on it. So if it went down i am gone.
1. How can i use two boxes in load balancing or failover mode for zones. ?
2. In case i have to restore then what all i need as backup ?
Thanks

I don't know if you can do load balancing between zones on separate boxes. I think that would be more of a question of whether or not your application supports that.
As for backing up and restoring we have built all our zones on ZFS shares. So our backups are pretty easy...
zlogin zone1 init 5
zfs snapshot zfspool/zone1@snapshotname
zoneadm -z zone1 bootTo roll back some changes between snap shots...
zoneadm -z zone1 halt
zfs rollback -r zfspool/zone1@snapshotname
zoneadm -z zone1 boot

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