Jump to main content

# Remove an alias range from a CU image

Unisphere supports the removal of an alias range from a CU image.

## Prerequisites

- The storage system must be running HYPERMAX OS 5977 Q1 2016.
- This operation removes all the aliases for the selected CU image.
- See Roles and associated permissions to determine the user roles that can perform this task.

## About this task

To remove an alias range from a CU image:

## Steps

1. Select the storage system.
2. Select Hosts > Mainframe to open the mainframe dashboard.
3. Click CU Images, select the CU image from which you want to remove an alias range and click Remove Alias Range.
4. 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.