I'm still having issues. Copied a 11GB file from my primary array, to the cache array (raid 1), and server load went to 25'ish before it ended, making my dockers / VMS crash. @johnnie.black I saw your tests earlier, and noticed you are using raid 0. Have you had any issues with raid 1, or maybe have any idea why this is happening?
@aptalca did you get all the issues fixed - and are you running raid 0 or raid 1?