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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
2004-04-29