Hello,
We are currently facing some performance issues when taking backups of our exchange 2010 envrionment. Our envrionment is about 1200 users, currently we have 1 DB (mailbox) server and 1 client access server. The problem we face is during backups the CPU use on BOTH servers is going through the roof...causing client access slowness and backup slowness. We ran the excahnge troubleshooter and it indicated on the CAS server that there was a storage queue (stating that it was waiting for requests to be answered by the DB server). On the DB server the only issue noted was CPU. It did not indicate any problems with disk queue lenghts, etc. We started doing some research and came across this diagram in the Exchange 2010 on vmware best practices guide and have some questions.
Currently we have 2 databases...each on their own LUN on a netapp SAN. Each LUN lives on a seperate controller, and seperate aggregate of disk. Based on the below image...it look slike we should have multiple luns and somehow mount them all to 1 VMDK?? That is the part we are un sure on...what is a "volume mount point" ? Currently in our environment each LUN has 1 VMDK on it, and that VMDK contains 1 exchange DB as well as the logs for that DB. THe below image seems to indcate that we should have multiple LUNS (and/or multple DBs) and somehow present them all to 1 drve letter...that is the part we don't understand.
Can someone help us out? Is our configuration OK...or should we be splitting up our DBs across multiple luns?
