NetApp Active Directory DNS issues. dns.update.enable
There are 2 IPs assigned to each of the NetApp units here. One for the regular network VLAN and one on the ISCSI network. When querying the DNS for the IP information, both IPs would come back. Turns out that under options in the NetApp command line, dns.update.enable was the issue. This option told the NetApp to send DNS updates to the DNS servers, thus auto updating the records with both its public IP and ISCSI VLAN IP. This was causing an intermittent problem for all servers and clients that were trying to access NFS or CIFS (windows) shares on the NetApp.