I can't seem to find a straightforward answer to this question anywhere online. I want to use an SSD as my boot drive, but i would like to keep a mirror of it in case it suddenly and unexpectedly fails with no SMART warning, as they tend to do. If i have it mirrored to another drive, will it slow down the SSD? If so, what is another viable option for keeping a mirror image of this drive, rather than a conventional backup?