The Host Profiles CLI Fling (hostprofilescli) is a command-line utility that allows vSphere administrators to perform several operations with Host Profiles that are either not currently possible through existing user interfaces, or possible only through graphical interfaces.

vCenter Cluster Performance Tool is a Powershell script that uses vSphere PowerCLI to obtain performance data for a cluster by aggregating information from individual hosts.

DRS Doctor is a command line tool that can be used to diagnose DRS behaviour in VMware vCenter clusters. When run against a DRS enabled cluster, it records information regarding the state of the cluster, the work load distribution, DRS moves, etc., in an easy to read log format.