On Tue, 31 Oct 2023 16:51:42 +0800, David Crayford <[email protected]> wrote:

> I think you’re confused again John.

To the contrary, it is you again who is confused.

> IBM don’t own the vast majority of the z/OS products they sell. 
> They are either developed by vendors or have been sold to vendors. 
> This has been the case for decades. 

With the exception of open source code, it is obvious that IBM owns the 
strategic z/OS products they market. It's true that OEM vendors created many of 
their products, but IBM tends to acquire products when they become part of 
their z/OS strategy. For instance, Cloud Object Storage, JES2, Omegamon 
products, TCP, IBM C/C++ and more have become products owned by IBM.

It's pure speculation to say "vast" and that this has been standard practice 
for decades when we can't prove it either way. IBM doenosn't openly disclose 
which z/OS OEM products they do not own. In fact, they go out of their way to 
hide it. For instance, all the presenters for Cloud Tape Connector are IBM'ers 
and Rocket Software is not mentioned in the presentation.

> IBM CLoud Tape Connector is owned by Rocket Software, the original and 
> current vendor. 
> IBM is the business partner who brands, markets and provides L1 support. 

I'll take you at your word that Rocket Software owns this product, but this 
suggest that IBM doesn't consider it a strategic product. I'm not bashing the 
product in any way because it fills an important niche and probably does it 
very well. What I'm saying is that IBM purchased Cloud Object Storage because 
it's part of their strategic vision. It's use in products like TS7700 makes 
"cloud" transparent to customers where features like TERSING, encryption and 
compression are hidden from view. More important, IBM has the opportunity to 
perfect their product. I speculate that when the TS7700 is using IBM cloud 
objects, that the encryption, untersing and compression probably occurs in 
parallel with the cloud object transfer which significantly speeds up the 
process. When using a cloud service like Amazon S3, the TS7700 must wait for 
the transfer to complete otherwise they risk integrity issues like an 
incomplete transfer causing partial processing. Either the cloud object is 
completely processed or not processed at all.

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