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# Remove external disks or external LUNs

External storage can be attached to a storage system.

## Prerequisites

See Remove external LUNs for information about removing external LUNs.

See below for information about removing external disks.

## About this task

You can remove an external disk from a storage resource pool (SRP) when it is in a Drained state.

## Steps

To remove an external disk:

1. Select the storage system.
2. Select Storage > Storage Resource Pools.
3. Select the SRP and click to view its details.
4. Click the number next to Disk Groups.
5. Select an external disk group and click to view its details.
6. Select the external disk that you want to remove, click , and click Remove eDisks.
   The Remove External LUNs dialog appears and prompts for confirmation that you want to remove the external disk.
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.