You are not using a RAID controller. The drives are connected to the SATA controller on the system board. I don't see anything that suggests these drives are in a RAID array. It appears that these drives are connected like a normal desktop system. If you want to replace the drives then you would simply shut down the system and physically swap the drives out.
Hi, I'm running Windows server 2008 r2 on a Poweredge t110 II. We've been having problems with our system crashing a lot lately and it appears to be a hard drive problem so I'm replacing both the drives in our system. I have looked at a previous thread about this - [URL]#20465311 but in Open Manage Server Administration nothing appears under the Storage tab. Can anyone help me with this problem? 
Replacing both drives in a Poweredge T110 II