NEWBIE - just set up unRaid after losing 4TB of data which was the last straw. I've been running Plex for the family since 2013, so and have never configured a RAID, so call me a glutton for punishment. I've introduced Plex to many of my friends and finally a guy in my shop convinced me to look at unRaid. He's been with you guys for a year and loves it. So I joined Pro, and started the long process of transferring files. During my corse I had to swoop out my M.2 cache for an older SSD because it kept losing it's formatting, thereby losing share info. Once I swooped it, everything seamed to be working fine. I installed Plex and all is working. After a full day of Plex but directly after moving Plex appdata to cache drive I get the message about the hardware error. It recommends I post the system logs.
@Squid - You seam to know this stuff as if you wrote some of the code. Looking forward to your two cents..... I may just have to buy you that beer!
firefly-syslog-20200718-1643.zip