The N7700 filer storage controllers consist of the Model A11 and Model A21 and associated software with gateway options.
The IBM® System Storage® N7700 storage controllers are designed to interoperate with products capable of data transmission in the industry-standard iSCSI, CIFS, FCP and NFS protocols. These include the IBM eServer System p®, System i® (NFS only), System x®, and System z® (NFS only) servers.
See the Interoperability Matrix at the following web page for supported devices for your N7000 series filer system.
www.ibm.com/systems/storage/network/interophome.html
Mixed disk/LUN support is available on N series gateway systems. This support requires Data ONTAP 7.3 or higher and enables the use of both third-party disks and N series storage expansion units on N series gateways. This support also enables SnapLock Compliance, LockVault Compliance, and Disk Sanitization on gateways when used with IBM N series storage only. These features are not supported on third-party storage devices.
For details about your system's configuration limits for Fibre Channel, Fibre Channel over Ethernet, and iSCSI, refer to the IBM System Storage N series Fibre Channel and iSCSI Configuration Guide for your version of Data ONTAP.