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# Delete performance databases

The Unisphere Performance Management application enables the user to gather, view, and analyze performance data to troubleshoot and optimize the storage systems.

## Prerequisites

You require one or more storage systems that are no longer registered and have a performance database.

## About this task

The performance database delete operation can be performed only on storage systems that are not registered. The delete action removes all references to the storage systems in the database and removes the data.

To delete a performance database:

## Steps

1. Select .
2. In the Settings dialog box, select Unisphere Databases > Performance Databases.
3. Select a database from the list, click , and click Delete.
4. Select the data that you want to delete.
   The following options are available:
   - Delete database only
   - Delete database & backup files
   - Delete database & backup files and cancel scheduled tasks
5. Click OK.