Has anyone used SLES 10/11 to frontend a BackBlaze unit? .... and if so, what are some of the things I need to know, going into this?

Info on a BackBlaze unit:

It's basically off the shelf hardware, save one piece, and that's the unit case.

Standard Intel mother board, processor, and memory
3 SATA RAID cards
9 extension board that hold 5 standard SATA drives as large as the market has produced so far, i.e. 1, 2, 3 terabyte drives

**** NOTE **** Comes pre-installed with Debian