In the process of making a decision of implementing a FT storage in your environment that is running vCenter Server 6.0 4541947, I wanted to upgrade vCenter prior to implementing the solution.
Our infrastructure is based on 3xR730 with 3x400gb SSD and 6x1.6 15k NLSAS HDD drives and we are running around 70 VMs.
Would it be possible to keep both of the VMFS 5 and VMFS 6?