We have exchange 07 in a 2 node cluster like mail1 and mail2 consist of 4 servers. Backups are not finishing the fulls during the weekend with very low throughput. So we broke mail1 &2 into mutiple subclients. Also increased data readers to 6 on each subclient, and set network agents to 2, turned compression off even though they are beefy servers. In data paths under sp for primary you can see both media agents one is set for default. On data path config auto add new path is selected along with round robin. Media is set for multiplex factor 4.
Also under schedule policy for exchange I set time to start first. But I want to change job priority so other backup jobs will not stop exchange jobs and it will finish. The default is 166 and I set it to 155, after reading the doc's for scheduled not sure if it is set correctly. There are 10 drive letters for one media agent and 9 for the other for a total of 24.6 TB. Hopefully it will grab enough drives to get the through put I need and will not stop untill finished.
It is just job priority setting that I am not sure about.
Does anybody else have some performance tweaking for exchange. It seemed to slow down after sp5.