Counters for Disk Performance

This table contains the values for each category of the counters that measure Disk performance.  

GROUP NAME: disk

Counter Name Category Value
usage
unit KBps
description The sum of the data read and written for all of the disk instances of the host or virtual machine.
statistic type rate
rollup type average, minimum, maximum
entity host, virtual machine (aggregate level only)
numberRead
unit number
description Number of times data was read from the disk in the defined interval.
statistic type delta
rollup type summation
entity host, virtual machine (per disk instance only)
numberWrite
unit number
description Number of times data was written to the disk in the defined interval.
statistic type delta
rollup type summation
entity host, virtual machine (per disk instance only)
read
unit KBps
description Amount of data read in the performance interval.
statistic type rate
rollup type average
entity host, virtual machine (per disk instance only)
write
unit KBps
description Amount of data written to disk in the performance interval.
statistic type rate
rollup type average
entity host, virtual machine (per disk instance only)