Are you wanting to reflash it because the H700 locks out drives that don't have Dell firmware? That's the only reason I can think of to do so.
This is a really irritating situation for me...the H700 has incredible performance - I've deployed two Exchange servers w/heavy disk I/O and they're superb - but I hate being locked in to one vendor for a commodity item.
Yep. I spoke with a Dell technical guy a couple of weeks ago. He said the latest revisions allow any hard drives. Said they got 10X more negative feedback about this than all other server related issues in the last couple of years. Also said the deciding factor was that some bank that bought a bunch of high end servers with these controllers decided to return all the servers over the issue so Dell caved. Don't know if that last part is accurate or not but that's what I was told.
Helly guys. I work for Dell's Enterprise support for Poweredge servers. I can tell you that in a recent firmware update, we did allow non Dell certified drives to work on the H700 controller. It was just a bad decision on Dell's part in my humble opinion.