What performance counters can be tracked using thresholds

Contributors netapp-chikkusu

Some common performance counters, such as IOPS and MB/s, can have thresholds set for all storage objects. There are other counters that can have thresholds set for only certain storage objects.

Available performance counters

Storage object Performance counter Description

Cluster

IOPS

Average number of input/output operations the cluster processes per second.

MB/s

Average number of megabytes of data transferred to and from this cluster per second.

Node

IOPS

Average number of input/output operations the node processes per second.

MB/s

Average number of megabytes of data transferred to and from this node per second.

Latency

Average number of milliseconds the node takes to respond to application requests.

Utilization

Average percentage of the node’s CPU and RAM that is being used.

Performance Capacity Used

Average percentage of performance capacity that is being consumed by the node.

Performance Capacity Used - Takeover

Average percentage of performance capacity that is being consumed by the node, plus the performance capacity of its partner node.

Aggregate

IOPS

Average number of input/output operations the aggregate processes per second.

MB/s

Average number of megabytes of data transferred to and from this aggregate per second.

Latency

Average number of milliseconds the aggregate takes to respond to application requests.

Utilization

Average percentage of the aggregate’s disks that are being used.

Performance Capacity Used

Average percentage of performance capacity that is being consumed by the aggregate.

Storage VM

IOPS

Average number of input/output operations the SVM processes per second.

MB/s

Average number of megabytes of data transferred to and from this SVM per second.

Latency

Average number of milliseconds the SVM takes to respond to application requests.

Volume

IOPS

Average number of input/output operations the volume processes per second.

MB/s

Average number of megabytes of data transferred to and from this volume per second.

Latency

Average number of milliseconds the volume takes to respond to application requests.

Cache miss ratio

Average percentage of read requests from client applications that are returned from the volume instead of being returned from cache.

LUN

IOPS

Average number of input/output operations the LUN processes per second.

MB/s

Average number of megabytes of data transferred to and from this LUN per second.

Latency

Average number of milliseconds the LUN takes to respond to application requests.

Namespace

IOPS

Average number of input/output operations the namespace processes per second.

MB/s

Average number of megabytes of data transferred to and from this namespace per second.

Latency

Average number of milliseconds the namespace takes to respond to application requests.

Port

Bandwidth utilization

Average percentage of the port’s available bandwidth that is being used.

MB/s

Average number of megabytes of data transferred to and from this port per second.

Network Interface (LIF)

MB/s

Average number of megabytes of data transferred to and from this LIF per second.