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# Create service level compliance alert policies

Alerts can be generated when the performance of a storage group, relative to its service level target, changes.

## Prerequisites

- See Roles and associated permissions to determine the user roles that can perform this task.
- The storage system must be registered for performance statistics collection.
- The storage group must:
  - Be either a child or stand-alone. Parent storage groups are not supported.
  - Be associated with a service level other than optimized.
  - Contain volumes other than gatekeepers.
  - Be in a masking view.
  - Not have a policy currently associated with it.

## About this task

This procedure explains how to configure Unisphere to alert you when the performance of a storage group, relative to its service level target, changes. Once configured, Unisphere assesses the performance of the storage every 30 minutes, and determines the appropriate alert level.

When assessing the performance for a storage group, Workload Planner calculates its weighted response time for the past four hours and for the past two weeks, and then compares the two values to the maximum response time associated with its given service level. If both calculated values fall within (under) the service level defined response time band, the compliance state is STABLE. If one of them is in compliance and the other is out of compliance, then the compliance state is MARGINAL. If both are out of compliance, then the compliance state is CRITICAL.

The following table details the state changes that generate an alert and the alert level.

Table 1. Service level compliance rules
State change | Alert generated | Alert level
--- | --- | ---
ANY STATE > NONE | No |
NONE > STABLE | No |
NONE > MARGINAL | Yes | Warning
NONE > CRITICAL | Yes | Critical
STABLE > MARGINAL | Yes | Warning
STABLE > CRITICAL | Yes | Critical
STABLE > STABLE | No |
MARGINAL > STABLE | Yes | Info
MARGINAL > CRITICAL | Yes | Critical
MARGINAL > MARGINAL | No |
CRITICAL > STABLE | Yes | Info
CRITICAL > MARGINAL | Yes | Warning
CRITICAL > CRITICAL | Yes | Critical

| NOTE: When a storage group that is configured for compliance alerts is deleted or renamed, you must delete the compliance alerts. For instructions, see Delete compliance alerts policies.

To create service level compliance alert policies:

## Steps

1. Select to open the Settings panel.
2. Click Alerts > Compliance Alert Policies.
3. Click Create.
4. Select the storage system on which the storage groups are located.
5. Select one or more storage groups and click >.
6. Optional: By default, service level compliance policies are configured to generate alerts for all service level compliance states. To change this default behavior, clear any of the states for which you do not want to generate alerts:
   - Critical—Storage group performing well below service level targets.
   - Marginal—Storage group performing below service level target.
   - Stable—Storage group performing within the service level target.
7. Click OK.