1.0

Datastore Metrics for Host Systems
Datastore metrics provide information about datastore use.
Table 5-33. Datastore Metrics for Host Systems
Metric Key Metric Name Notes
datastore | commandsAveraged_average Commands Averaged Average number of commands
issued per second during the
collection interval.
datastore | oio Number of Outstanding IO
Operations
Number of outstanding IO
operations.
datastore | totalLatency Total Latency (ms) Total latency in milliseconds.
datastore | usage Usage Rate (KBps) Use rate in kilobytes per second.
datastore | demand Demand Demand.
datastore | datastoreIops_average Storage I/O Control aggregated
IOPS
Aggregate number of IO operations
on the datastore.
datastore | numberReadAveraged_average Reads per second Reads per second.
datastore | numberWriteAveraged_average Writes per second Writes per second.
datastore | read_average Read Rate (KBps) Read rate in kilobytes per second.
datastore |
sizeNormalizedDatastoreLatency_average
Storage I/O Control normalized
latency (ms)
Normalized latency in microseconds
on the datastore.
datastore | totalReadLatency_average Read Latency (ms) Read latency in milliseconds.
datastore | totalWriteLatency_average Write Latency (ms) Write latency in milliseconds.
datastore | write_average Write Rate (KBps) Write rate in kilobytes per second.
Disk Metrics for Host Systems
Disk metrics provide information about disk use.
Table 5-34. Disk Metrics for Host Systems
Metric Key Metric Name Description
disk | usage_average Usage Rate (KBps) Average of the sum of the data read
and written fro all of the disk
instances of the host or virtual
machine.
disk | workload Workload (%) Percent workload.
Supported by ESX 3.5 and later.
disk | usage_average Commands per second Average number of commands
issued per second during the
collection interval.
disk | totalLatency_average Disk Command Latency (ms) Average amount of time taken for a
command from the perspective of
the guest operating system. This
metric is the sum of the Kernel
Device Command Latency and
Physical Device Command Latency
metrics.
disk | numberReadAveraged_average Reads per second Average number of read commands
issued per second during the
collection interval.
VMware vCenter Adapter Installation and Configuration Guide
40 VMware, Inc.