Just wondering how to make sure there's enough resources between 2 sites to cover a site failure.
With 2 active/active sites with their own 5.0 vCenters, there's SAN replication between the 2 sites for particular VM's. All we need is SRM. but it always gets knocked back in the budget.
As we add VM's to one site, how can we ensure there's sufficient resources at the second site to run the existing VM's plus the ones that may be failover over during a DR scenario?
Something like admission control across vCenters would be great. I guess i could change the percentage of cluster resources reserved as failover capacity every now and then as i add VM's to the other site, or change the 'host failures cluster tolerates' to n + a guess of the number of hosts the replicated VM's at the other site use, but i'd like something with a bit more science behind it.
Does SRM solve/help with this problem?
What do others do in this situation?
Thanks.