6.7

Table Of Contents
Table 136. Data Counters
Chart Label Description
Max Queue Depth per Host Maximum queue depth. Queue depth is the number of commands the SCSI driver queues to
the HBA.
n
Counter: maxQueueDepth
n
Stats Type: Absolute
n
Unit: Number
n
Rollup Type: Average
n
Collection Level: 3
Read IOPs per Host
This chart displays the per-host disk read rates for a datastore. The chart displays information about the
ten hosts with the highest values.
This chart is located in the Performance view of the datastore Performance tab.
Table 137. Data Counters
Chart Label Description
Read IOPs per Host Number of disk read commands completed on each disk on the host, per second.
Read rate = blocks read per second × block size
n
Counter: numberReadAveraged
n
Stats Type: Rate
n
Unit: Number
n
Rollup Type: Average
n
Collection Level: 3
Write IOPs Per Host
This chart displays the per-host disk write rates for a datastore. The chart displays information about the
10 hosts with the highest values.
This chart is located in the Performance view of the datastore Performance tab.
Table 138. Data Counters
Chart Label Description
Write IOPs per Host Number of disk write commands completed on each disk on the host, per second.
Write rate = blocks written per second × block size
n
Counter: numberWriteAveraged
n
Stats Type: Rate
n
Unit: Number
n
Rollup Type: Average
n
Collection Level: 3
vSphere Monitoring and Performance
VMware, Inc. 37