Replication failed: cannot send snapshot not an earlier snapshot from the same fs

[josh.noname]

@josh.noname

Why is TrueNAS stating that one snapshot is newer than another since they have the same timestamp?

The following pretty much answers it:

@winnielinnie

The snapshot’s name is used by (TrueNAS’s) zettarepl. Rather than use metadata (slower), it parses through the snapshot names (faster). That’s why it’s important to include the date and time information in the name itself.

source: What are the requirements for naming a ZFS snapshot? - #2 by winnielinnie

Somehow, zettarepl has determined that one snapshot was older than this other.