Just a recap for those who'll want to try NVMe cache because all the thread is quite messy imho.    The above shell script with DSM 6.2.3-25426 Update 2 (on DS918+ , indeed) does not work anymore. At least in my experience it leads in an incorrect state where the two NVMe are not recognised as the same and therefore they cannot be used for a necessary RAID 1 in case of R/W cache.    The only thing is really working at the moment is a copy of the libsynonvme.so.1 to the right
    • Angry
    • Thanks
    • Like
    6