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# z/OS map from the Volumes (Storage Groups) list view

Unisphere supports the z/OS mapping of volumes.

## Prerequisites

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).

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

| NOTE:

## About this task

To map to a CU image from the Volumes (Storage Groups) list view:

## Steps

1. Select the storage system.
2. Select Hosts > Mainframe.
3. In the CKD Storage Groups panel, click View All Storage Groups to open the Storage Groups list view.
4. Select the storage group and click to see its details. Click the number in the Number of Volumes field to open the Volumes (Storage Groups) list view.
5. Select one or more volumes to map, click , and then click z/OS Map.
   The Mainframe Volumes Mapping dialog box displays.
6. Select whether to want to map the volume(s) to a New or an Existing CU image.
   - New
   1. Specify values for CU Image Number, SSID, and Base Address.
   2. Optional: Select a Split.
   - Existing
   1. Select the CU image to which you want to map the selected volume(s).
   2. Optional: Click Set Base Address to reset the next available base address.
7. 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.

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