robocopy /mir killing server performance
Posted on 2011-03-11
Server 2003 with the 2003 Resource Kit version of robocopy.
Copying 325GB from internal disk (raid10 sas) to external USB disk.
While the copy is running, disk queue length and memory pages/sec in Performance Monitor skyrocket. The host is also nearly unresponsive.
Do I need to run it multithreaded (can I even run the newer MT version on 32-bit 2003?), or will the IPG option control the performance?