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# z/OS map from the CU image list view

Unisphere supports the z/OS mapping of CU images.

## Prerequisites

The storage system must be running HYPERMAX OS 5977 Q1 2016.

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

| NOTE: Before making any mapping changes to an existing CU image, ensure that all the devices in the CU are offline (the status of the CU should be offline).

## About this task

To map to a CU image from the CU image list view:

## Steps

1. Select the storage system.
2. Select Hosts > Mainframe to open the mainframe dashboard.
3. Click CU Images.
4. Select a CU image, which has not already been mapped, and click z/OS Map.
   The CU Image Map wizard displays.
5. In the Find Volumes page, search for a volume to which you can map the CU image:
   1. Optional: Specify one or more criteria by which you can filter volumes.
      An Additional Criteria filter for volumes with emulation CKD-3390 is applied by default.
   2. Optional: Click Add Another to configure further additional criteria.
   3. Click Find Volumes.
6. In the Select Volumes page, select one or more volumes to map to the CU image.
7. Click Summary.
8. Review the summary information.
9. Optional: To reset the base address, click Set Base Address and specify the new base address.
10. 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.