clusterStats

Contributors netapp-mwallis amgrissino

The clusterStats object contains statistical data for a cluster. Many of the volume-related statistics contained in the object are averaged for all volumes in the cluster. You can use the GetClusterStats method to retrieve this information for a cluster.

Object members

This object contains the following members:

Name Description Calculation Type

actualIOPS

Current actual IOPS for the entire cluster in the last 500 milliseconds.

Point in time

integer

averageIOPSize

Average size in bytes of recent I/O to the cluster in the last 500 milliseconds.

Point in time

integer

clientQueueDepth

The number of outstanding read and write operations to the cluster.

N/A

integer

clusterUtilization

The percentage of the cluster’s max IOPS currently being utilized. This is computed as clusterUtilization = normalizedIOPS / maxIOPS (from GetClusterCapacity).

N/A

float

latencyUSec

The average time, in microseconds, to complete operations to a cluster in the last 500 milliseconds.

Point in time

integer

normalizedIOPS

Average number of IOPS for the entire cluster in the last 500 milliseconds.

Point in time

integer

readBytes

The total cumulative bytes read from the cluster since the creation of the cluster.

Monotonically increasing

integer

readBytesLastSample

The total number of bytes read from the cluster during the last sample period.

Point in time

integer

readLatencyUSec

The average time, in microseconds, to complete read operations to the cluster in the last 500 milliseconds.

Point in time

integer

readLatencyUSecTotal

The total time spent performing read operations since the creation of the cluster.

Monotonically increasing

integer

readOps

The total cumulative read operations to the cluster since the creation of the cluster.

Monotonically increasing

integer

readOpsLastSample

The total number of read operations during the last sample period.

Point in time

integer

samplePeriodMSec

The length of the sample period, in milliseconds.

N/A

integer

servicesCount

The number of services running on the cluster. If equal to the servicesTotal, this indicates that valid statistics were collected from all nodes.

Point in time

integer

servicesTotal

The total number of expected services running on the cluster.

N/A

integer

timestamp

The current time in UTC+0 format.

N/A

ISO 8601 date string

unalignedReads

The total cumulative unaligned read operations to a cluster since the creation of the cluster.

Monotonically increasing

integer

unalignedWrites

The total cumulative unaligned write operations to a cluster since the creation of the cluster.

Monotonically increasing

integer

writeBytes

The total cumulative bytes written to the cluster since the creation of the cluster.

Monotonically increasing

integer

writeBytesLastSample

The total number of bytes written to the cluster during the last sample period.

Monotonically increasing

integer

writeLatencyUSec

The average time, in microseconds, to complete write operations to a cluster in the last 500 milliseconds.

Point in time

integer

writeLatencyUSecTotal

The total time spent performing write operations since the creation of the cluster.

Monotonically increasing

integer

writeOps

The total cumulative write operations to the cluster since the creation of the cluster.

Monotonically increasing

integer

writeOpsLastSample

The total number of write operations during the last sample period.

Point in time

integer

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