Strange issue here, Im setting up DAG for Exchange 2010. Both Exchange servers are running SP3 rollup 9.
Exchange Server A has been in production for several years with no issues.
Exchange Server B is a brand new virtual machine running on Hyper-V Server 2012 R2.
Exchange Server B works fine when being put to a load, however when DAG is setup and its seeding the 200gb database Exchange Server B crashes and brings the Hyper-V Host with it. Both reboot.
I can copy a 800gb file from the network to Exchange Server B and it doesnt crash.
I can copy 100gb of log files using 32-threads and it doesnt crash.
But the second I turn on DAG, it crashes.
I've checked the logs and can't find anything related. I did find an article (https://support.microsoft.com/en-us/kb/2629777
) that is very similar in issue but the resolution points to an old update, that this server has.