I am looking at SRM with vSphere Replication as a possible technology to provide DRaaS for clients. It is my understanding that SRM (using vSphere Replication) has the following limitations:
1. 500 VMs can be replicated by vSphere Replication. You can have numerous replication appliances per vCenter, but the total number of protected VMs can never exceed 500? (from here: VMware KB: Operational Limits for SRM and vSphere Replication )
2. 10 sites per vCenter/SRM pairing, meaning once you have 10 customers, you would need to add additional support. I am unclear on how exactly you would extend this beyond the 10 sites however. Would you have add additional SRM/vCenter pairs?
3. Is the 500 VMs limitation spread across the 10 site limitation? Ex: 50 VMs/site if you had 10 sites, or 100 VMs/site if you had 5 sites.
Are these limitations correct? It appears that this software is not very well positioned for DRaaS offerings for service providers if these limitations are correct. Maybe I am missing some potentially easy solutions?