I have not tried it but am sure that I can not, no one can run a 6 year test with one-minute data and 2 GB memory. What do you need such a test for? If youre scalping with 1m data you normally test a couple months but not 6 years. I doubt that a bar period of one minute is of any use anyway, prices in that small time frame are normally just noise and you wont get any profitable system from them.

But if you really want to test 6 years with one minute bar periods then I would split the test period into several parts.