There is no need to format the SSD before you accelerate it, since The RST will format the drive during the acceleration process. You will be asked if you want to use the full space for a maximum of 64 GB for caching, but you can partition unused space on the SSD and assign it a drive letter.
Thanks for the detailed answer.
Hi! Can one also use/split one 128 GB SSD to cache two hard drives or two raid volumes? Thanks in advance.