You can find out exactly how long it took the last time it ran on your system. type in – dspdtaara qrclstg – from a command line. you should see something like:
V4R4M0 SXXXXXXX 1XXXXXX
First line is the start time, second line is the stop time, third line is release & serial number of the system.
This system is at 79%
Hope that helps
That is only if it has been run before. If it has never been run then it will also tell you and there is no way of telling. I suggest anytime you move to new hardware, plan once the system is loaded, to run the RCLSTG command so going forward you know how long it may take on the new hardware.