re: [quote=“phillxnet, post:4, topic:8085”]
Incidentally was this pool imported from a prior CentOS Rockstor instance?
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I’m actually not certain - I recall copying everything off to several other machines when I did the v4 installation jbut I don’t recall if Pool1 survived the install or I built it fresh and copied everything back. I did recently modify the pool after one drive threw a SMART wobbly.
When I found the errno=-5 in the log, my heart sank a bit and I was beginning to realize that the patient’s condition might be fatal. So I’ll run the memtest, and remount skipping the balance, scrub, etc. My worst-case scenario is that I have to trash and recreate the array & copy back from the backup. Time-consuming but not a disaster.
Thank you for the guidance here, Philip. I’ll post the results. It will be a couple of days or more as working interferes with troubleshooting.