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IBM Z Hardware and Operating Systems Ideas Portal
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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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USS

Showing 109 of 3669

Provide a SETOMVS SYNTAXCHECK equivalent via a batch job.

Request a batch utility which would allow you to check BPXPRMxx syntax via a DD for input and route the output to a DD. The benefits would be: (1) Allow any location for input (vs. current SETOMVS SYNTAXCHECK which must come from PARMLIB) and (2) ...
over 1 year ago in z/OS / USS 1 Not under consideration

Automount and RACF FSACCESS

When we use automount, where the policy creates a new zfs for a userid, in conjunction with RACF FSACCESS, "phantom" directories are created. It would seem more sensible that automount honours FSACCESS before the dataset is created.
about 6 years ago in z/OS / USS 1 Future consideration

RACF Profile BPX.SAFFASTPATH

Make BPX.SAFFASTPATH more granular (e.g., add userids and access) or add another profile with a userid and access authority to USS resources. Access to UNIX services and resources (e.g. IPC queues) requires many, many SAF Router (IRRSXT00) calls f...
almost 8 years ago in z/OS / USS 1 Future consideration

ZFS save cpu. Provide option to stop SMF file activity, and eliminate getmain/free main for every open/close SMF record

When I was looking into Java was so slow on z/OS compared to Ubuntu, I noticed there was an SMF call for every file open ( and close) , and a getmain/freemain as well. To start z/OSMF took over 600 seconds of CPU! This needs to come down to about ...
over 1 year ago in z/OS / USS 1 Not under consideration

Customer needs to map up to one million shared mutex/shared condvar per shared memory segment under z/OS Unix.

Customer running an app that hit an internal limit (JRSMCMaxCntSeg 65535 decimal)) creating shared mutex and shared convars. Discussions with the customer indicate that there is a need to support one million of these type of structures. This will ...
over 1 year ago in z/OS / USS 0 Future consideration

ID Token support in pthread_security_np et al

Please add RACF/SAF ID token support to pthread_security_np and pthread_security_applid_np C library functions (and underlying BPXnTLS etc) so that an ID token can be passed as the "identity" parameter to these functions. Oh and please do Java too...
almost 5 years ago in z/OS / USS 1 Future consideration

Provide iNotify subsystem as on Linux and LoZ

This is a request to have an 'inotify' subsystem on z/OS, as currently exists on Linux and LoZ. There's no API on z/OS to monitor activity on directories, and poll() can only monitor files, sockets, etc. - but not directories.
about 5 years ago in z/OS / USS 2 Future consideration

USS HealthChecks

We are requesting to add USS health checks to Health Checker for z/OS to validate correct USS configuration and also identify best practices. Some items that we would like checked: (1) Validate permission bits for /etc, /dev, /tmp (i.e. ensure tmp...
over 10 years ago in z/OS / USS 2 Future consideration

Simplified MNTE_SYSLIST syntax as part of z/OS UNIX REXX mount command

Currently, if a user would like to include MNTE_SYSLIST as a parm in his USS REXX mount command implementation, the user must code the MNTE_SYSLIST as though they are writing assembler code using the mapping described in BPXYMNTE: MNTENTSYSLISTNUM...
almost 2 years ago in z/OS / USS 0 Future consideration

libevent / libev on z/OS

For multithread connections libevent and libev boost network performance. It is avaliable on other IBM platforms like AIX. Right now select is used to detect socket acitivity and it is an expensive operation. Usage of libevent and libev would be g...
about 9 years ago in z/OS / USS 3 Future consideration