Chad Sakac works for EMC, and has blog of course.

He wrote a wonderful post last week about getting the most you can out of IP storage for ESX. The post itself was great because it was a joint project from 6 different people from 5 different companies all working together to share great info for the virtualization community. The post can be found here.

Another great post he made today - So... What's the "BIG picture stuff " going on under the covers?

I highly recommend it!