it's been a while since I've used configured tape devices like this but if I recall correctly you need to define the devices as shared and define a CF structure to use AUTOSWAP , or a product like MIM to manage the devices across multiple systems.

at my site using a virtual tape system we have defined 256 devices and just manage the number of devices we need across 3 LPARS,  all others are varied offline at IPL time, so one range is online to LPAR1 then then next range is varied online to LPAR2 and so on.

that for us was an easier option especially with the virtual tape system

Carmen

On 10/12/2022 10:37 AM, Steve Beaver wrote:
What is the PARM/OPTION to allow VTD's to auto swap between LPARS if

That LPAR needs a VTD to satisfy a MOUNT request?

Regards,


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