How to calculate storage IOPS requirements for a Exchange 2010 HUB/CAS server on VMware
Posted on 2011-04-30
I'm going to deploy Exchange 2010 for 3500 users. We are going to deploy as follows:
2 x Dell R710 servers with 2 x Intel Xeon X5650, 2.66Ghz 6 core CPUs and 64 GB RAM. Each will be running vSphere
1 NAS device that can hold up to 45 disks (600 GB 15K RPM)
We are going to deploy to HUB/CAS VMs and 2 Mailbox VMs (1 HUB/CAS and one mailbox on each of the two R710s). We're deploying such that if one host goes down, the other HUB/CAS and and mailbox server in a DAG will provide continued service to all 3500 users.
I need to provide my hardware person with information on the IOPS requirements for the HUB/CAS VMs. Microsoft has lots of articles on how to calculate this for mailbox servers, I'm not sure about HUB/CAS. Could someone please help me out?
There are a number of Microsoft articles on calculating IOPS