Hi hurst,
If you want to actually reset all of the devices, you could call the AssertSysReset function, which asserts the SysReset line. This may work, depending on your devices. The VXI spec does not require that devices recognize this line, but some do. The only way to ensure that the devices are reset is to reboot the whole chassis, in which case you will have to run Resman again.
Hope this helps!
john
Applications Engineer