We are migrating mailboxes from Exchange 2007 (e2007) to Exchange 2013 (e2013).
After we updated from CU2 to SP1 for e2013, the mailbox moves are running much longer.
We are checking into other causes,...but at this point it seems like SP1 is the only "new kid on the block".
For example, last week we moved 5 mailboxes per hour and now we are moving 3 mailboxes per hour (or maybe even less).
RAM is near 100% (as expected...)
CPU is high...but not anymore than last week.
The e2007 mailbox servers and the e2013 servers are in the same room and connected with a "nice network" (and it has not changed since last week.)
The crew that provides VMware, Windows 2012 server, Disk, network, etc. say that it looks like the E2013 server is healthy and not showing any significant "stress red flags".
Could the "Exchange workload manager" in SP1 be making decisions that slow down the mailbox moves compared to the CU2 level ?
Thanks.
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