Hello.

We have an Oracle RMAN cluster with 4 servers that we are trying to point to Isilon using NFS.

The backups works fine when the Oracle cluster mounts the Isilon NFS share using an IP address.

When we use the Isilon NFS zone SmartConnect name we get an error each time:

ORA-17516: dNFS asynchronous I/O failure

Cause: The asynchronous I/O request failed due to storage server reboot.

Action: Make sure the storage server does not reboot repeatedly during database operations.

The Isilon is not rebooting at the time of backup.

We have a current SR open on this but are not making much traction.  We have gathered multiple pcaps using tcpdump while the error happens for EMC support to analyze.  Nothing yet.

Isilon is v8.0.0.4

Oracle 12.1.0.2.0

Any thoughts or personal experiences with something like this would be great!

Thanks!