While I suppose you could use Nimble storage for media storage, it’s probably overkill. Nimble is an awesome product, but its really designed for small block, IO-intensive applications that can benefit from flash acceleration, such as databases and virtualization environments.
Its not unusual for monolithic IT policies to overshadow common sense solutions to highly specialized applications and problems, mostly out of pure ignorance, but sometimes pure politics, hurting productivity, users and sowing division along the way. I have been on both sides of the fence so I can speak from experience.
Maybe your IT admin should make a the habit of reading these forums to get a better understanding of the challenges facing his “other” users, those that don’t live inside of MS Office. Short of that, take it to his superiors and the CTO/CEO if necessary
Jeff Yana