Windows Server 2012 R2 Essentials Slow During/After OS Updates

Question

We have a Dell server with the Windows Server 2012 R2 Essentials operating system. The server has worked very well for several years. However, now, when the monthly Windows operating system updates are installed, the server becomes extremely slow. This is true both with the OS update process (takes forever, which was not the case in the past) and with the server speed after the update reboot has been done. Server speed does improve over time after this slowdown. Is this a known problem? Could the cause be the loss of cached memory contents when the server is reset? Or is it possibly a temporary disk drive problem (RAID-1 on server)? It has gotten to the point where we are afraid to install monthly OS updates, due to the marked slowdown.

Answer 1

Here you go.
https://www.dell.com/support/kbdoc/en-us/000142315/how-to-run-the-dell-hardware-diagnostics-usc-to-troubleshoot-the-different-components-in-a-poweredge-server

--please don't forget to Accept as answer if the reply is helpful--

Answer 2

The PowerEdge model we have is the T110-II. The model does not correspond to what is in the hardware diagnostics documentation mentioned above. The model numbers there are 9G through 12G, which does not match up with what we have.

Do you still recommend using the above document, in spite of the model number difference?

Sorry to both you with another question, but given the range of PowerEdge servers over the years, I want to try and use the correct tool.

Thanks again for your help.

Answer 3

One odd thing about this recurring phenomenon is that the server is at its slowest during and right after the OS updates are installed. After that, it gradually picks up speed and after a day or so, is basically back to its regular speed. Very puzzling.