[vero2]

> were not in their expected locations on the new box

This is why one should not use sda/sdb or vda equivalent but use /dev/disk/by-uuid/

[matja]

Can also use cachefile=none and the name does not matter at all. Every disk vdev has a unique guid in the ZFS label area. Without the pool cachefile the guid is used to reliably assemble the pool, instead of the kernel device path.