IBM Z Hardware and Operating Systems Ideas Portal


This is the public portal for all IBM Z Hardware and Operating System related offerings. To view all of your ideas submitted to IBM, create and manage groups of Ideas, or create an idea explicitly set to be either visible by all (public) or visible only to you and IBM (private), use the IBM Unified Ideas Portal (https://ideas.ibm.com).


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I/O and Networking

Showing 13

Enable Multi-VSwitch Link Aggregation for z12

Please provide MCL updates to allow z12 (EC and BC) to exploit Multi-VSwitch Link Aggregation on OSA4s and OSA5s (same hardware as z13
over 9 years ago in IBM Z and LinuxONE Systems Hardware / I/O and Networking 4 Not under consideration

z13 FICON path selection

a z/13 CPU design issue. An IO subsystem algorithm checks path activity and if one becomes less active it swings processing to the remaining normally efficient path. However, it never rechecks the poorer performing path to allow it to return to th...
over 3 years ago in IBM Z and LinuxONE Systems Hardware / I/O and Networking 2 Not under consideration

Request to Add Full dynamic Activate support in SACF Lpar on Z14 and above

Reference case: TS003931886When there are no requirements for a ZOS LPAR or ZVM LPAR, there is still a need to configure resources beyond coupling facility. The SACF Activation LPAR needs to be able to handle equivalent of the Dynamic Activate fun...
over 4 years ago in IBM Z and LinuxONE Systems Hardware / I/O and Networking 5 Not under consideration

OSA SF on z/OS for OSA-Express 5S needed

Starting with OSA-Express 5S Adapters OSA S/F functionality has moved from z/OS to Hardware Management Console (HMC) and Support Element (SE). We ask you to continue OSA/SF Support on z/OS for OSA-Express 5S and the following Cards.
over 8 years ago in IBM Z and LinuxONE Systems Hardware / I/O and Networking 3 Not under consideration

SNA support of Hipersockets

Our customer runs Communication Server on z/Linux to communicate with z/OS VTAM.Now, they connect Communications Server on z/Linux and VTAM on z/OS with OSA-Express card(SNA protocol).But, they hope to connect with Hipersockets, but Hipersockets d...
over 6 years ago in IBM Z and LinuxONE Systems Hardware / I/O and Networking 3 Not under consideration

Additional subchannel sets

With the implementation of GDPS 4 Site, we have drastically depleted UCB's in our KPAR's and SDMPLEX, we are requesting at least 6 MSSes per LCSS in support of 4 Site and future UCB growth. We have worked for years on UCB reclamation to comply wit...
about 7 years ago in IBM Z and LinuxONE Systems Hardware / I/O and Networking 5 Not under consideration

OSA SF on z/OS for OSA-Express 5S needed

Starting with OSA-Express 5S Adapters OSA S/F functionality has moved from z/OS to Hardware Management Console (HMC) and Support Element (SE). We ask you to continue OSA/SF Support on z/OS for OSA-Express 5S and the following Cards.
almost 10 years ago in IBM Z and LinuxONE Systems Hardware / I/O and Networking 3 Not under consideration

Adding Compute Express Link CXL3.0 based on PCIe6 and CXL4.0 based on PCIe7 to the IBM Z and IBM LinuxONE

CXL 3.0 is built upon the IBM OpenCAPI, but CXL3 and CXL 4 have more speeds and will achieve the following: 1- Enabling the Interconnection between IBM LinuxONE and Exa scale AI Data Centers based on Nvidia DGX H100 based on Nvidia H100 GPUs and I...
almost 2 years ago in IBM Z and LinuxONE Systems Hardware / I/O and Networking 6 Not under consideration

NPIV support in HCD and IOCP

The NPIV setting of an FCP channel would be better driven from IOCP. In this way, a customer would eliminate a step in configuring FCP channels if NPIV were desired. Hard to imagine that a customer would have two different settings for an FCP chan...
over 6 years ago in IBM Z and LinuxONE Systems Hardware / I/O and Networking 5 Not under consideration

Greater than 256 LCUs per channel

We are currently using exactly 256 LCUs on some of our channels, which is the limit according to HCD when building IODFs and also according to those at IBM we've spoken to on the subject. Our ongoing adoption of MzGMM with a Flashcopy has added mo...
almost 7 years ago in IBM Z and LinuxONE Systems Hardware / I/O and Networking 7 Not under consideration

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