Merge pull request #38285 from stevsmit/GH38183

Author: adellape

modules/install-sno-requirements-for-installing-on-a-single-node.adoc

@@ -14,10 +14,17 @@ Installing {product-title} on a single node alleviates some of the requirements
 .Hardware requirements
 [options="header"]
 |====
-|Profile|CPU|Memory|Storage
-|Minimum|8 CPU cores|32GB of RAM| 120GB
+|Profile|vCPU|Memory|Storage
+|Minimum|8 vCPU cores|32GB of RAM| 120GB
 |====
 +
+[NOTE]
+====
+One vCPU is equivalent to one physical core when simultaneous multithreading (SMT), or hyperthreading, is not enabled. When enabled, use the following formula to calculate the corresponding ratio: 
+
+(threads per core × cores) × sockets = vCPUs
+====
++
 The server must have a Baseboard Management Controller (BMC) when booting with virtual media.
 
 * *Networking:* The server must have access to the internet or access to a local registry if it is not connected to a routable network. The server must have a DHCP reservation or a static IP address for the Kubernetes API, Ingress route, and cluster node domain names. You must configure the DNS to resolve the IP address to each of the following fully qualified domain names (FQDN):