Which license is required for vSAN Data-At-Rest Encryption, and what is characteristic of this type of encryption?

Which user provided block of IP addresses to the VxRail initialization wizard may contain non-contiguous addresses?

During a VxRail deployment validation check it is discovered that the Top of Rack (ToR) switches have Spanning Tree Protocol enabled.
What should be done before the implementation can proceed?

Which log files are related to a VxRail upgrade?

What is the minimum configuration for a vSAN Stretched Cluster?