Checksum errors can often mean a failing component. It could be the other drive or maybe a sata cable. Is the original pool mounting correctly? If so, you should be able to do a simple rsync
to move it to the new pool.
this post was submitted on 05 Mar 2025
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Oh! Also, try posting this here: https://practicalzfs.com/. That’s a discourse forum really focused on ZFS. Jim Salter runs it and Alan Jude often contributes advice. There are some folks there who know ZFS inside and out.
Thanks, will do!
One of the drives I connected using a new HBA, I guess that could be it. The pool is mounting and the data seems largely intact.