Hello,
my SSDSC2BW240H601 was working fine for almost a year in a mostly idle Ubuntu 16.04 system. Recently it started misbehaving:
For no apparent reason it would just disappear and on subsequent system restart BIOS will fail to enumerate device or it will be presented as sandforce.
Sometimes it does manage to initialize correctly and by looking at the report from Intel's SSD Toolbox it's health status is OK, and as far as I can tell it is running latest firmware - RG21.
Any ideas?