I am new to the VMware HA configuration and just wanted to be sure I have my thoughts in order. We are looking to do a configuration as shown below:
For my test bed, I have 5 ESXi servers, there will be 2 in each cluster/resource pools and one spare that will run the vCenter vm among others. I am thinking I need to create a data center in vCenter. This would consist of two virtual clusters (2 esxi servers each). A resource pool in each cluster that contains my virtual machines. The problem I am having is getting my head around the storage/datastores. For my HA environment do I need to have a NAS share mounted on each esxi server and store all my virtual machines there? Is this volume/datastore then used for "datastore heartbeating"? My vCenter layoutlooks like this but I think I am missing the big picture. To complicate things I am installing Oracle RAC with ASM and I have a JBOD attached to esxi server1 and 2 which is used for their storage.
I think I am over complicating this. Any specific documentation would be helpful.
Thanks for the help and/or suggestions