Sorry for the delayed response. I don't have an immediate answer for you, but I'm working on it. I will get in touch shortly. Thanks so much for your interest, and I look forward to finding you the information you need.
If you want to boot from SAN that might be more flexible for you then you can have images on the NetApp along with the NFS datastores. For what model, that is dependent on the performance requirement. A NetApp trained SE should go through a sizing exercise with you. Then you can take all into consideration including FCP boot LUNs (if it makes sense to go diskless on blades) and NFS for VMs. If you need RDMs then you also could leverage FCP/FCoE used for boot or iSCSI too.
I am in our healthcare practice. I would like to understand if this is for a specific EMR or PACS/Imaging application. We have a group that can help you with healthcare specific applications. Please send me a message and we can arrange a call.