Testing large number of replicated VPS

[yena]

Hello,
i'm testing large number of VPS replicated using the ZFS -R (recursion) option.
I am noticing that over 90/100 VPS the incremental replication sometimes fails and i hav to reset all snapshot on recv server..

Have someone the same experience?
What is the best way to syncronize two zfs storage ( active passive ).
( iSer, DRBD .. ? )

Thanks!

 

[Alwin]

You are doing the replication through other means, then the pvesr or pve-zsync?