When selecting VMFS 6, be aware of the following limits:
- Datastores may be created up to 64 TB.
- Datastore minimum size is 1.3 GB although 2 GB is suggested as a minimum.
- A datastore comprises between 1 to 32 extents, each extent may reside on a different VMFS volume.
- A single ESX 6 host can access up to 256 VMFS volumes or RDM Volumes and 256 datastores.