Hi.
assuming you have a spare slot available you could just add the drive, define it as a spare (non-revertable !) and then "force offline" the old drive.
Unfortunately you have to run the RAID in insecure mode for several hours. As it is possible that an other sector on an other drive is bad you might end up unrecoverable, maybe even with a completely failed RAID. Intel has no information on these critical situations and how the storage manager will behave.
I have requested two years ago to change that procedure so that one could have a "replace", where all available drives are taken into account when rebuilding the replacement drive. And only after the successful transition the "to-be-replaced-drive" will be shut down. But they decided to stop development of the IMS completely instead and even refined EoL-Date.( This is the worst I have ever seen in IT esp from Intel - now I am having headaches explaining this to my customers)!
M.