Tom's Hardware Guide published a review on Drobo B810i
A quote from the article:
Drobo lowered the price of the B810 products, and the SAN model moved to just $999. Let's take a closer look.Drobo B810i Review @ Toms Hardware
Outside of hardcore enterprise systems that cost many thousands of dollars, the Drobo B810i stands alone as a mainstream dedicated iSCSI SAN-only device. The iSCSI feature is often included with lower-cost network-attached storage systems, but mostly as an afterthought. Drobo decided to take iSCSI seriously while maintaining the company's ease-of-use policy. The result is a user-friendly device that takes the complication out of a complicated setup process.