On Wed, 23 Apr 2025 11:49:24 +0300, ITschak Mugzach <[email protected]> wrote:

>BTW, IBm states at
>https://www.ibm.com/docs/en/ds8900/9.3.3?topic=overview-machine-types that "
>All DS8000 series models report 2107 as the machine type to attached host
>systems."
>

Your zPDT DEVMAP probably looks like this for each disk:

device a80 3390 2107 /z/c3res1

Where the 3990 is the controller type but zPDT does not actually use this so 
you can place any 4 characters there so you could have:

device a80 3390 3990 /z/c3res1

And see what that reports.

Sebastian.

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