Inside System Storage -- by Tony Pearson

Tony Pearson Tony Pearson is a Master Inventor and Senior IT Specialist for the IBM System Storage product line at the IBM Executive Briefing Center in Tucson Arizona, and featured contributor to IBM's developerWorks. In 2011, Tony celebrated his 25th year anniversary with IBM Storage on the same day as the IBM's Centennial. He is author of the Inside System Storage series of books. This blog is for the open exchange of ideas relating to storage and storage networking hardware, software and services. You can also follow him on Twitter @az990tony.
(Short URL for this blog: ibm.co/Pearson )
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Comments (3)

1 localhost commented Trackback

Tony, I discussed TDMF earlier in the week. One thing I don't think I mentioned in detail was that TDMF actually uses an advertised MVS/Z/OS (call it what you like) system call to perform the UCB swap when you come to swap volumes. I think this is what got me excited when I first saw the product. Not only did it actually work, but it wasn't a kludge, it was using real MVS calls, so no cheating and consequently less risk to my data.

2 localhost commented Trackback

Chris, it used to be kludge, but IBM worked with them to use proper interfaces, so that the product wouldn't break when a new z/OS release level came out. IBM relies heavily on this product, so it was in our best interest that it works right.

3 localhost commented Trackback

A list of acquisitions by IBM for those who are interested.

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