skahl

I have experienced the exact same problem. Maybe using: zpool import -d /dev/disk/by-id POOL for when the Array get's started is a good idea?

Hello there, I wanted to request that we stay up to date with OpenZFS releases so that we will see the option to expand ZFS vdevs with single drives very soon. We are already on OpenZFS Version 2.1.12-1 here, so this is already awesome! This is an amazing feature that was missing from ZFS to make it even more competitive with other storage solutions, especially in the home server environment where you probably more often than not would just want to add a single drive to your ~3 wide raidz1 setup. This has been a long time in the making and A LOT of people are very excited about it, understandably. Here is a link to the pull request on the ZFS github: https://github.com/openzfs/zfs/pull/15022 QNAP had pulled that one very early and have already integrated this into their feature:

Kind of unrelated to OP's problem: I just wanted to let you guys know that this thread helped me to track down a misconfiguration in my unRAID. I've set it up with ZFS, so my array is really just another thumb drive. Over night my appdata was moved to that array and thus configs went missing because I had the shares set up to Cache:Yes instead of Cache:Preferred. Thankful I had setup up my own cronjob rsync backup for the appdata so that I was able to get earlier versions of my appdata from the ZFS snapshots. Cheers!