I am not sure what is going on with my rsync as of late but my i have 2 OMV servers and run a rsync between the two of them. For a good while now the rsync job was working with no issue.
Then today i pulled the logs and found this
rsync: read error: Connection reset by peer (104)
rsync error: error in socket IO (code 10) at io.c(794) [receiver=3.1.2]
rsync: connection unexpectedly closed (327642 bytes received so far) [generator]
rsync error: error in rsync protocol data stream (code 12) at io.c(235) [generator=3.1.2]
So the host is a 5.x and the client (receiver of the files) 4.x OMV and these logs are from the 4.x server.
I run plex and other services on the 5.x and I dont see the network dropping out on other services so I am unsure what is causing this.