I'm dealing with a failed P840 controller on my HP DL380 G9 server. I noticed the fans were really loud, and when I checked iLO, it confirmed that the controller has failed. I'm considering buying a replacement controller from eBay. Is it safe to just swap it out like that without risking my RAID data?
1 Answer
It's likely safe to replace it. The configuration for your RAID array is stored on both the drives and the controller. Just ensure that the firmware on the new controller matches what's currently on your system. However, be cautious since the old controller might have corrupted some data on the drives.

Exactly! Once you connect the drives to the new controller and boot up, you should see a prompt to import the foreign configuration, which should restore your volume. Just make sure you don’t create a new virtual volume, as that would wipe everything.