dell r720 not found raid

If your Dell R720 server is not detecting the RAID controller or the RAID configuration, here are a few steps you can try:

1. Check the RAID controller status in the BIOS: Restart the server and enter the BIOS setup. Check if the RAID controller is enabled and if it is being detected by the system.

2. Check the RAID controller cables and connections: Make sure the cables connecting the RAID controller to the hard drives are properly connected and not damaged.

3. Check the RAID configuration: Check if the RAID configuration is properly set up in the RAID controller software. You may need to recreate the RAID configuration if it is missing or corrupted.

4. Update the RAID controller firmware: Check for any available firmware updates for the RAID controller and update it if needed.

5. Reset the RAID controller: Try resetting the RAID controller to its default settings and then reconfigure it.

If none of these steps work, you may need to contact Dell support for further assistance.