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Moving Data Between HPSS and GPFS

I am now going to explain to you how to move data between AVIDD GPFS and HPSS.

But before we get to this topic we are going to have a simple IO programming exercise first. We are going to concoct a program that writes a file full of random numbers. The program works similarly to a popular UNIX tool called mkfile, but whereas mkfile writes a file full of nulls, which can be misleading if you want to test IO, because of hardware implemented data compression on disk arrays, our program randomizes the output.


Zdzislaw Meglicki