IBM Z Hardware and Operating Systems Ideas Portal


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z/VM

Showing 378

Rise limits of Guest Coupling simulation support

We try to run zOS systems within a sysplex with large DB2 group buffer pool structures. These structures cannot be allocated if zOS is running in zVM because they are bigger than the given (undocumented) limit. The intention is virtualize systems ...
6 months ago in z/VM 0 Future consideration

Extent CP Flashcopy with IBM Remote Pair FlashCopy (Preserve Mirror)

Make IBM Remote Pair FlashCopy also known as Preserve Mirror available for CP Flashcopy. This way flashcopy will not affect the PPRC duplex state and GDPS will not complain. The system stays hyperswap ready during the flashcopy. Which is now not t...
about 5 years ago in z/VM 2 Future consideration

Create new class B command to refresh stored DASD info without VARY OFF/ON the device

At present, for CP to see updated DASD info (like VOLSER, VTOC, etc), a device must be varied off/on to refresh the data. If the disk has been relabeled by a guest using full-pack minidisk, then the guest sees different information than a user wit...
10 months ago in z/VM 0 Future consideration

By putting the checks for OPERATIONS into the same environment as SPECIAL, AUDITOR an/or ROAUDITOR, the attribute can be (un)assigned dynamically without requiring the user to log in/out to refresh its assigned rights.

Unless a guest that logged on with the OPERATIONS is logged off, it retains that attribute and those rights until it has been logged off. This is a security vulnerability as there is a difference between RACF's contents and reality.It would also b...
over 1 year ago in z/VM 0 Future consideration

Hyperpav on MDISKS for GDPS compatibility

Today, Hyperpav is available on Fullpack minidisks only.
almost 5 years ago in z/VM 2 Future consideration

Add Live Guest Relocation Support for Linux guests with Dedicated Crypto resources

A z/VM SSI cluster provides a virtual server mobility function called LGR (live guest relocation). A running virtual server (guest virtual machine) can be relocated from one member to another. However, currently LGR is not supported on guests with...
almost 2 years ago in z/VM 0 Future consideration

Support VS-CODE for editing native (Rexx, HLASM, etc.) CMS files

Currently VS CODE supports editing z/OS datasets on a workstation via the z/OSMF facility. CMS developers would benefit from having the same capabilities for editing CMS files using VS-CODE and its toolsets.
over 1 year ago in z/VM 1 Not under consideration

Increase CP areas to maximum supported size on VM installs

Historically, VM delivered a modest average size for most CP areas like ckpt, warmstart, and directory. Now that disk is no longer really constrained on most systems and VM management skills are increasingly rare, increasing the reserved areas to ...
over 2 years ago in z/VM 1 Not under consideration

Support for FTP client mutual SSL authentication

Please allow the z/VM FTP client to support mutual SSL authentication
over 6 years ago in z/VM 0 Future consideration

Implement the existing, but not yet supported, TLStimeout parameter for IUCV IOCTL socket calls

When using IUCV IOCTL calls, in particular SIOCSECCLIENT and SIOCSECSERVER to secure an established socket connection, I have seen cases where the call sits indefinitely with no response or failure. Because the documented TLStimeout has not been i...
over 2 years ago in z/VM 3 Future consideration

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