Setting protection domain monitoring

You can manually enable protection domain monitoring using the NetApp Element Configuration extension point. You can select a protection domain threshold based on node or chassis domains.

Before you begin

The selected cluster must be Element 11.0 or later to use protection domain monitoring; otherwise, protection domain functions are not available.
Your cluster must have more than two nodes to use the protection domains feature. Compatibility with two-node clusters is not available.

About this task

A protection domain is a node or a set of nodes grouped together such that any node or all nodes in a domain might fail without causing the cluster to lose data availability. The protection domains feature allows you to monitor a cluster's resource capacity to ensure the cluster is still capable of healing from a failure event. You can select monitoring at either a node or chassis domain level:

Node level defines each protection domain per individual node, with each node potentially located across chassis.
Chassis level defines each protection domain by nodes that share a chassis.

A chassis domain requires more potential capacity resources than a node domain to be resilient to failure. When a protection domain threshold is exceeded, a cluster no longer has sufficient capacity to heal from failure while also maintaining undisrupted data availability.

Procedure

Select NetApp Element Configuration > Clusters.
Select the cluster on which you want to enable protection domain monitoring.
Click Actions.
In the resulting menu, click Set Protection Domain Monitoring.
In the Set Protection Domain Monitoring dialog, select a failure threshold:
- Node: The threshold beyond which a cluster can no longer provide uninterrupted data during hardware failures at node level. The node threshold is the system default.
- Chassis: The threshold beyond which a cluster can no longer provide uninterrupted data during hardware failures at chassis level.
Click OK.

Result

After you have set monitoring preferences, you can monitor protection domains from the Reporting tab of the NetApp Element Management extension point. See Reporting overview.