Which command assesses both round trip latency and hop count between two directors?

The command that assesses both round trip latency and hop count between two directors is specifically designed to provide detailed network performance metrics. Using this command, administrators can execute a tracepath that not only measures the round trip latency—indicating how long it takes for packets to travel from one director to another and back—but also reports the number of hops, which represents the various intermediate devices that packets traverse during their journey.

Tracepath is particularly useful for identifying potential bottlenecks, packet loss, and other network-related issues that could affect data transmission efficiency between the directors. Given its focus on these network characteristics, it delivers a comprehensive view of the connection, enabling better troubleshooting and optimization of the VPLEX environment.

In contrast, the 'director ping' command primarily checks basic connectivity between two directors without providing extensive details on hop counts or latency measurements. Commands related to 'meta-volume create' and 'meta-volume move' are focused on managing storage volumes and do not relate to assessing network performance metrics. This distinction highlights why the tracepath command is the appropriate choice for evaluating network conditions between directors in a VPLEX setup.