Storage Adapter Counters

Performance counters are modeled using the PerfCounterInfo data object type. Each instance of a PerfCounterInfo data object contains metadata about a specific metric available from the system. The storage adapter group of performance counters supports real-time performance metrics (such as latency and read- and write-speeds) for I/O operations on storage adapters.

Legend:V=VirtualMachine|H=HostSystem|R=ResourcePool|C=ComputeResource|D=OtherDevice
Counter StatsType Unit Levels RollupTypes Labels      Entity
VHRC
read ratekiloBytesPerSecond2averageRead rate οοο
Rate of reading data by the storage adapter.
write ratekiloBytesPerSecond2averageWrite rate οοο
Rate of writing data by the storage adapter.
numberReadAveraged ratenumber2averageAverage read requests per second οοο
Average number of read commands issued per second by the storage adapter during the collection interval.
numberWriteAveraged ratenumber2averageAverage write requests per second οοο
Average number of write commands issued per second by the storage adapter during the collection interval.
totalReadLatency absolutemillisecond2averageRead latency οοο
Average amount of time for a read operation by the storage adapter. Total latency = kernel latency + device latency.
totalWriteLatency absolutemillisecond2averageWrite latency οοο
Average amount of time for a write operation by the storage adapter. Total latency = kernel latency + device latency.
commandsAveraged ratenumber2averageAverage commands issued per second οοο
Average number of commands issued per second by the storage adapter during the collection interval.