# Updating controller and enclosure software

The ROM Update wizard guides you through the process of updating the software for your direct-attached and network-attached storage devices:

- For direct-attached storage devices, the wizard updates the BIOS software for all ServeRAID controllers of the same type on the local and remote systems. You can update only one type of controller at a time.
- For external (network-attached) storage devices, the wizard updates the enclosure and controller software for all controllers in the enclosure (single or dual controller configurations).

Before you can use the ROM update wizard, you must download the latest software images from your vendor's software support site on the World Wide Web. For direct-attachd storage devices, the image upgrade files typically come in sets of two or more and have a `.ufi` file extension. For external storage enclosures, the (single) image upgrade file has a `.upgrade` file extension.

To update the controller software for direct-attached or network-attached storage devices:

1. In the Enterprise view, click (Direct attached storage object) or (Networked storage object)

2. Right-click Update controller images. The ROM Update wizard opens.

3. Click Next.
4. Choose the ROM image update files.
5. Click Next; then, select the controllers or enclosures you want to update.
6. Click Next; then, review the update summary.
7. Click Apply. The ServeRAID Manager applies the software update to the selected controllers or enclosures.
8. Restart the server(s) or enclosures to activate the new ROM image.

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