Mailbox I/O usage monitoring on Exchange 2013 - possible?

[randal]

At about 9.45-10am every day I'm seeing disk and network I/O spikes on our Exchange 2013 server, severe enough to render the host inaccessible (clients report "trying to connect" messages).

I can see the mail store getting hammered by Exchange Store Worker process when this happens, but I was wondering if there was any way to report in a more granular fashion?

I'd like to understand if it's one mailbox getting hammered (or one user doing the hammering), or if it's a system wide process.

Cheers

 

[randal]

Possibly, I'll have a look at the config but I'm convinced it's network access of resources on the server that's initiating the hammering. Seems too coincidental that there's 35mb/sec network spikes at the same time as the disk I/O going through the roof...