I see a number of my mailbox moves going into a stalled state migrating from Exchange 2007 to 2013. I have paired back the number of simultaneous moves to 7 max. This has helped, but not eliminated the problem. Looking at the MoveRequestStatistics I see that StalledDueToWriteCpu number is high. No other counter is of concern.

I see the status shows as below;

 Informational: The request has been temporarily postponed due to unfavorable
 server health or budget limitations. MRS will attempt to continue processing
 the request again after 4/23/2015 10:39:02 AM. 

Does this mean that the CPU is spiking to a high level and causing the mailbox move to stall? I have 8 cores allocated to this server 4 of the cores are averaging around 80% the other 4 about 30-40%.

Thanks

• Edited by BTRowdy1 13 hours 9 minutes ago