It looks like ZFS should be run with ECC
"...We further demonstrate that ZFS is less resilient to memory corruption, which can lead to corrupt data being returned to applications or system crashes..." - https://research.cs.wisc.edu/wind/Publications/zfs-corruptio...
"Please Use ZFS With ECC Memory" - https://louwrentius.com/please-use-zfs-with-ecc-memory.html