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# Add hosts to host groups

Storage hosts are systems that use storage system LUN resources. A logical unit number (LUN) is an identifier that is used for labeling and designating subsystems of physical or virtual storage.

## Prerequisites

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

## About this task

To add hosts to host groups:

## Steps

1. Select the storage system.
2. Select Hosts > Hosts.
3. Select the host group (or empty host) and click .
4. Click the link in the Hosts field.
5. Click Add Hosts.
6. Specify the host by typing its name or by selecting it from the list. The hosts table is a filtered list that is based on whether the host selected is Fibre Channel or ISCSI. To filter the list, type part of the hostname. Click Add. Repeat this step for each additional host.
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.