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# Upgrading ArcMC

Note: Prior to upgrading a production system, make sure to have a rollback plan to minimize potential production down time. The rollback plan will restore an ArcMC to its working state prior to the upgrade.
If there are any unexpected issues during or after the upgrade, implement the rollback plan. Restore the configuration backup of production to a staging environment. Test the upgrade in the staging environment to troubleshoot further.

In ArcMC, you can remotely upgrade any of the following managed ArcMC types and versions.

Form Factor | Upgrade File Name | Comments
--- | --- | ---
Appliance | arcmc-<build number>.enc |
Software | arcmc-sw-<build number>-remote.bin | Remote operating system upgrade is not supported for software ArcMC, and, if required, must be performed manually.

## Remote Upgrade Using Node Management

Remote upgrade first requires that you upload the appropriate file to your ArcMC repository first. You can then apply the upgrade file to managed ArcMCs.

To upload the upgrade file to your repository:

1. Download the ArcMC upgrade file for the upgrade version, as outlined in the table above, and store it in a secure network location.

2. Click Administration > Repositories.

3. In the navigation tree, pick Upgrade Files.

4. In the management panel, click Upload.

5. Click Choose File and browse to your upgrade file, then click Submit. The file is uploaded.

To remotely upgrade one or more managed ArcMCs:

1. Click Node Management.

2. In the navigation tree, click System.

3. In the management panel, click ArcMCs.

4. In the list of ArcMCs, select one or more ArcMCs for upgrade. (You may select only the form factor appropriate for the upgrade file type, as outlined above.)

5. Click Upgrade ArcMC. The Upgrade wizard is launched.

6. Review the dialog box, and then click Next.

7. Follow the prompts to complete the wizard.

8. When the wizard is complete, click Done.