I'm not sure what is going on. Everything appeared to be working fine with the exception the Array was getting low on space.
Ran the update, then stopped all the dockers, shutdown the array and rebooted. And saw the error about the Cache drive missing. says no device and below it shows the old drive/serial which i guess it's looking for.
I downgraded and its showing the same thing. I shutdown the server entirely. swapped the locations of the two SSD drives, and still the 1TB cache drive is no longer being seen..
Not sure on the controller? I believe its a LSI SAS2308.