I have been designing a DAG cluster using 3 rack servers w/ JBOD DAS solution for a medium sized business with about 7k users. The solution is utulizing the Exchange calculator and looks pretty solid. Just curious to see if exchange community has deployed similiar solutions with success for a 5-10k user base?? thanks!-Chad

I have yet to have a customer use JBOD. But if you have several copies of each database in your DAG, I can't see why it wouldn't be a very cost-effective solution.Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Hi, I think the following article may help a lot: http://scottshireman.wordpress.com/2011/04/03/microsoft-exchange-2010-dasjbod-vs-san/ Thanks, Simon Wu Exchange Forum Support Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com

Hi, I think the following article may help a lot: http://scottshireman.wordpress.com/2011/04/03/microsoft-exchange-2010-dasjbod-vs-san/ Thanks, Simon Wu Exchange Forum Support Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com