Storage counters at the ESXi level
The storage counters at the ESXi level are similar to those at the VM level. They provide the same set of information (latency, throughput, and IOPS).
Naturally, each of the metric groups gives insight from the vantage point of the object. For example, the ESXi adapter metric group provides the data from each adapter (vmhba).
The following two screenshots show the sets of counters available for each ESXi adapter and their associated storage paths:
Notice in the screenshot that there is no total throughput counter, so you need to add write and read manually. vRealize Operations provides the total throughput counter via the Total Usage counter.
As shared earlier, you normally set four paths between an ESXi host and its target LUN. You set two HBAs (in case either one of them fails) and each HBA sees a port on each SP on the array (in case any SP fails).
This means that in the preceding Storage path counters, you...