Standard minimal hardware settings for an On-Premises Analytics instance running on any platform include:
4 CPUs (2.4 GHz processor)
8 GB main memory for IPFIX reporting, 16 GB main memory for Syslog reporting
68.41 GB disk size (preferably SSDs)
1 virtual NICs (vSwitches)
At the lowest license level, an additional external mount of 500 GB of storage is required for logs storage.