1.009: fun with numbers (and charts)
One thing I've grown to depend upon over my past 13 months of blogging is that Fellow Blogger Tony Pearson will try and refute, twist and manipulate anything I say that could be construed as a challenge to IBM and/or its products. Guaranteed action/reaction.
It took him a couple of weeks to get around to responding to my post on GDDR vs. GDPS, but he didn't let me down.
And true to form, our resident Mr. Pennybags-lookalike spares no opportunity to misrepresent the facts in IBM's favor. Sure, you can run compile your own open-source version of Linux to run on IBM mainframe hardware as he says, but I sincerely doubt anyone would ever do that. That's awfully expensive hardware to be running generic home-brewed Linux on...
But fact is that you can't get IBM mainframe hardware from anywhere else but IBM, nor can you license the software necessary to run your z/OS-, z/VM-, z/VSE-, or z/TPF-based applications from anyone but IBM. And while GDPS might indeed support third party storage, the pre-requisite is that the storage vendor have licensed and implemented bug-compatible equivalents of PPRC and FlashCopy.
Hardly an "open system."
No, a real "open" version of GDPS would natively support TimeFinder and SRDF instead of the feature-limited IBM wanna-bee alternatives.
And though indeed EMC's GDDR supports only a subset of the capabilities of IBM's GDPS, that subset is pretty much 100% of what the vast majority IBM's GDPS customers are deploying - two site automated disaster restart for their geographically dispersed IBM z/OS-based Parallel Sysplexes running on IBM Series "z" hardware.
Yet GDDR costs SIGNIFICANTLY less to implement and maintain than IBM's GDPS for this same functionality. Does the same thing that most people need, for less. Plain, and simple...
To that fact, TonyP would have you believe that EMC is offering GDDR below cost - but you'll have to trust me on this one, nothing could be further from the truth.
No, the simple reality is that IBM has long been taking advantage of it's position as the sole-source provider to charge a massive premium for its mainframe products (hardware, software AND services). I'll go so far as to say that EMC's and IBM's costs to deploy their respective disaster restart solutions are probably very close to identical - IBM just charges more. A LOT more.
Which is why TonyP is throwing up all the FUD he can muster: he hopes to diffuse the very real threat to the exorbitant profits that GDPS has been delivering to IBM's bottom line.
Go figure....




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