We currently have 4 vSphere 6 Standard hosts and a vCenter server, licensed with 8 CPUs running on Dell hardware ranging from 3 to 7 years old. All of the hosts are using local storage (currently 15TB +/- of an available 18TB). The newest host houses all of our internal production systems, and the other 3 have development and working environments for clients.
I want to replace the two oldest hosts and also incorporate a SAN for shared storage, or use two new dell R730 and/or R730XD servers and use those servers as hosts and shared storage for all 4 hosts. I would like to have some sort of redundancy between the shared storage to allow for vMotion in case of hardware failure.
None of my existing servers have 10GBASE-T cards, or a 10GBASE-T switches. I'm kinda new to the hardware for that type of network infrastructure. What network cards and switches are necessary?
In order to use local storage on the potential new R730s as shared storage, would I need a different software entitlement from VMware?
Any recommendations on the best approach? A shared SAN, or multiple servers with shared local storage?