TallKoKoMoose

Thanks much. Yep there's a backup. I had already Ctrl-I added the disk back into the array. But the message said to finish the rebuild in the OS. Intel's site had a note that seemed to confirm that I'd need to perform a rebuild from the OS. https://www.intel.com/content/www/us/en/support/articles/000006418/technologies.html So are you saying in your experience that it will actually rebuild on its own because the chipset driver is being used?

So I have a major PEBKAC. I have a RAID 5 drive failure on a fairly old, but kept up to date ASUS P8Z77-M PRO build. I replaced the drive and was expecting to use the Intel RST console/application for the remainder of the recovery, but alas it is not installed (again old build and apparently I didn't install it). The board started out on Win 7 and was upgraded to Win 10 and maybe was lost in the update? Who knows at this point. Anyway, I checked the storage controller and it is an Intel Chipset SATA RAID Controller v15.44.0.1010 dated 2/7/2018, it's not the RST driver. My question, does anyone know if I will lose the RAID array if I install Intel RST on this degraded array, which as I understand it will also effectively replace the RAID driver? I'm pretty sure from researching that even though the disk is replaced that it's not rebuilding. And I cannot see a way using Windows Disk Management to do a RAID rebuild, nor am I aware of any other RAID software that can help. If anyone has any thoughts thy'd be much appreciated. If I don't hear back I'll post my findings after my backups finish so i can work a little more freely. Thanks much for any help.