iSCSI connections drop when backup runs

[OrdinarySteve]

Hello!

I've recently set up a new dedicated server for PBS. When I run backups now the host drops the iscsi connection to the storage. What's really puzzling is that the connection is on a different physical interface and network, and backing up to the previous server (which was a VM running on the same cluster with an iscsi connection to different storage). I initially thought the nic was faulty so I replaced it and the sfps, but the issue remains. I tried limiting the transfer rate but that hasn'tr resolved the issue.

Any ideas?

 

[PwrBank]

Is there any errors in your dmesg regarding the iSCSI interfaces?

 

[OrdinarySteve]

thank you for your reply!

I haven't checked dmesg yet, but there's heaps in syslog. When i get a chnce later i'll post a sample, but basically the iscsi connection disconnects and reconnects constantly.