I have a client with a Windows Storage Server NAS. The boot drive is software mirrored. There is no CD-Rom in the machine, and no Storage Server OS CD was provided. The boot disk is the first two physical drives mirrored. The first disk had a problem and lost the MBR, not sure why. I have to pull out the first disk for the NAS to boot. When it's starting up I slide the disk back in and the machine works with no problems until it reboots.
Is there a utility that will fix the MBR on that first disk while Windows is still running? Sorry if the scenario is hard to understand.