This chart displays the average amount of latency on a host device. The chart displays the ten hosts with the highest device latency.

This chart is located in the Performance view of the datastore Performance tab.

Table 1. Data Counters

Chart Label


Average Device Latency per Host

Measures the amount of time, in milliseconds, to complete a SCSI command issued from the physical device.

  • Counter: deviceLatency

  • Stats Type: Absolute

  • Unit: Milliseconds (ms)

  • Rollup Type: Average

  • Collection Level: 3