We will soon be deploying our new vSAN datacenter. We currently have a vSphere 6.0 deployment on blade servers using Netapp array as storage. Our new setup consists of new rackmount servers, all flash drives. Just thinking about migration scenarios. Our current vCenter server is on Windows server. We have about 350 VMs.
1. Migrate existing Windows vCenter to VCSA. Add new hosts running ESXi 6.7 into existing vCenter but in new cluster. Create vSAN. Storage migrate VMs over to new hosts and new VSAN datastore. Remove old hosts.
2. Install ESXi 6.7 on new hosts. Create new VCSA and new SSO and create VSAN at same time. Migrate VMs over to new VCSA and vSAN via Powercli.
Not sure which is best and would appreciate any advice.