This solution is intended for small-to-medium enterprises that are planning to deploy and virtualize Microsoft Exchange Server 2013 on Microsoft Hyper-V and Dell PS Series storage. It uses the Exchange Server 2013 Database Availability Group (DAG) feature to provide mailbox resiliency and high availability for Exchange users. The solution design represents a virtualized Exchange Server 2013 environment supporting 2,500 users in a mailbox resiliency configuration across two PS4210E storage arrays.
In this solution, 2,500 users are distributed across two mailbox server virtual machines (vm’s) each on a separate Dell PowerEdge R620 Hypervisor host in a single DAG. The DAG has two RAID-protected copies of every Exchange database—a primary (active) copy and a secondary (passive) copy—that are evenly split between hypervisor hosts and storage pools on two PS4210E arrays. Each Exchange database replicates to an alternate mailbox server that resides on a different Hyper-V host through the use of Exchange native DAG host-based log shipping mechanism.