We are looking at potentially using VCS for a cross site DR project and have been told by a solution provider that we can use the GCO option in VCS to allow us to have Windows 2012, running on VMware, and using IBM SVC SAN based mirroring. They have not been very clear how it would actually work, and I cannot discern from the VCS 6.1 docs how it would be possible.
The constraints we are working with is that we must use the native volume managers, file systems, and IBM SVC SAN based replication. I can understand how it might work if RDMs are used for the VMs, but they are saying that we can used VMDKs inside VMFS data stores and still achieve our goals.
Can anyone verify this is true, and if it is, explain how it is achieved? I understand how it work with local clustering using the NativeDisks and VMwareDisks agents, but it isn't clear how it works under GCO. The issue I see with it is that there does not appear to be anything that manipulating the VMFS datastores or the LUNs they are made up from. I would really appreciate it if someone could explain exactly what agents are necessary and how they tie into VMware to ensure than the SAN replicated LUNs\VMFS data stores are not mounted\accessed at the remote site.
Thank you,
Ian.