I've recently bought an R720xd and set it up with Win2012/Hyper-V. Well, the server was running without any issues for two weeks until a disk a failure. I have already requested for a replacement of the drives and the server was on RAID as seen below;
- OS - RAID 1 (mirrored)
- DATA - RAID 10 (striped and mirrored)
Later yesterday there was a power cut and I had to shutdown the server. I can confirm it was a smooth power off. However, I have switched on the server once the power was back where the server started smoothly with a huge fan noise, then went back to OS boot and then while on login screen, it fired up the fans with a huge noise. Checked the Dell's OMSA for any log reports but all showed normal, even the fans.
Then I restarted just to make sure that I didn't miss anything and it powered on smoothly but again back to the old noise upon showing the Windows login screen. However, this time it was average noise. So, I left it up and came back morning to see where it was the same but the noise has increased a little.
What I cannot figure out is, whether this is due to disk failure where it is trying to rebuild or sort of working on degrade mode or is it due to something else. Any advise will be appreciated.