HP published recently this great solution brief that provides an HP D6000 Disk Enclosure and HP Smart Array P721m storage solution for Microsoft® Exchange Server 2010 (Exchange), based on the Microsoft Exchange Solution Review Program (ESRP) – Storage Program.
This brief describes a tested configuration for deploying Microsoft Exchange Server 2010 (Exchange) in a 4,000 user mailbox resilient environment. The performance results and best practices outlined in this document provide tested guidelines for configuring Exchange with the HP D6000 disk enclosure, HP Smart Array P721m controller and HP ProLiant BL460c Gen8 Blade Servers in a direct attached storage (DAS) storage solution.
This solution used a single DAG to support 4,000 mailboxes, each with a 4 GB mailbox capacity and a work profile of 200 messages sent and received per user, per day. To provide mailbox resiliency, there are three copies of each database; two copies located in the primary site and one copy located in the disaster recovery site. The primary site hosts all 4,000 mailboxes during normal operations.
You can download the document here.