I have several PS6000 / PS6100 running FW 5.2.11 and 6.0.x configured for async replication. I have the following issues:
Roughly every 30 minutes my backup EQL reports the following error in its main log:
ERROR 21.10.15 17:06:33 node1 Partner cluster3-slow2: iSCSI: login timed out. Make sure the partner IP address is correct and reachable.
At that time no replication job is scheduled. All replication jobs run fine. This only happens to one of my many replication partners. I.e. backup never complains about cluster3-slow or cluster3-slow4 which it is also replicating.
Nothing else is logged, I can ping all interfaces from every EQL in question both internally (from the respective partner) and externally.
Now I'm out of ides what might be happening here...