Sun May 04, 2025 3:29 am
For posterity, the log I found that finally helped narrow down the issue was var\log\kern.log. That pointed to one of the drives having issues. Turns out the drive is fine, but the 512-4kn conversion had gone awry, and it needed a full format. After that day+ long format, it acted just like it's supposed to and the pool is now fully operational.