NX3230 Storage mirror

HI Everyone, 

First of all well done, what a great forum. 

I currently have a system with 2 x PowerEdge R630 and 2 x NX3230 NAS servers, running windows server 2012 R2 and windows storage server respectively. 

I am planning to have the two power edge servers on a failover cluster and use iSCSI to map drives on the NX3230's . 

However I need my NX3230's to be mirrored. Can you kindly indicate if this is possible? Will I need 3rd party software for this? What is the best way to go here?

Thanks,

Warren Gauci