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# Modify Service Levels

Unisphere supports the ability to modify the service level.

## Prerequisites

- See Roles and associated permissions to determine the user roles that can perform this task.

## About this task

Storage Class Memory (SCM) drives, if installed, significantly improve response times for all existing Diamond service level storage groups. If necessary, review the storage group service level to determine if the additional performance is appropriate.

## Steps

1. Select the storage system.
2. Select Storage > Storage Groups.
3. Select one or more storage groups, click , and select Modify Service Levels.
4. Select a service level.
5. Do one of the following:
   - Click Run Now to perform the operation now.
   - Expand Run Now and click Add to Job List to add this task to the job list, from which you can schedule or run the task at your convenience. For more information, see Schedule jobs and Preview jobs.