Write IOPs by Host This chart displays the per-host disk write rates for a datastore. This chart is located in the Performance view of the datastore Performance tab. Table 34. Data Counters Chart Label Description Average write requests per second Number of disk write commands completed on each disk on the host, per second. Write rate = blocks written per second × block size ■ Counter: numberWriteAveraged ■ Stats Type: Rate ■ Unit: Number ■ Rollup Type: Average ■ Collection Level: 2