Hi there,   Would you be able to unassign the spare drive out from hot spare assignement. Then proceed to check the steps at the virtual disk, drop down menu reconfigure. Are you able to select the extra drive in the drive selection in reconfigure option. From what I can see in your screenshot, only 3 drive were selected from and to.
I tried to follow the tutorial at this Spiceworks thread, but perhaps it's not apples to apples. We put the H710 with the hope of adding disk space to the existing RAID 5 without having to reinstall. I have the "reconfigure" option available in the OMSA but the only option I'm provided is to convert to a RAID 0. I didn't see any option to achieve this in the ctl-r during the POST reboot. The only option I see is to make the 4th drive a Hot Spare. The R420 only holds 4 drives and we're already at capacity. I'm hoping these screenshots help illustrate what I'm trying to do and if it's possible. [NAME]-Chris H, hoping you can come to the rescue...   [IMAGE]Only RAID 0[IMAGE]Reconfigure step 2[IMAGE]Reconfigure step 1 [IMAGE]Hot spare
adding a 4th drive to a RAID 5 on a PE R420 with PERC H710 Mini not possible?