The TPC-H is a data warehouse type of test so it is extremely IO intensive. So if your goal is to determine the IO performance of the 100GB LUN then you should first start with the simple TPC-H Power Test, which is a single user test.
The multi-user test of the TPC-H is the Stream test and can be downloaded from this community. For this test each virtual user is called a stream and, according to specification, there is a maximum number of streams that you can have based on the scale factor (size of the TPC-H dataset) that you can run with. You will need to modify the test to the desired number of streams by deleting the user scenarios of the undesired streams. Please review the TPC-H specification for further information.
With all that said I can’t say what your virtual user/stream count will be for your system since there are too many other factors that affect performance. I would run the Power Test first and see if your disk is performing optimally. If so you can try the Stream test but start with just two streams, then three streams until you system performance is at a maximum.