IBM Z Hardware and Operating Systems Ideas Portal


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Core Infrastructure

Showing 2931

VSAM RLS Lock Information

Today VSAM RLS relies on the LISTSUBSYS(ALL) and LISTSTAT IDCAMS share control dataset commands as a way to list the CICS regions which hold locks in RLS files and to provide statistics of usage of a certain sphere. There is no information about w...
over 7 years ago in z/OS / DFSMS VSAM/RLS 0 Future consideration

ECSA Storage Shortage Prevention

When the system is under ECSA/CSA stress have a new ENF signal raised to inform users that obtain ESCA storage and not give it back for performance reasons to give back that storage back and take a performance hit in order to prevent ESCA/CSA from...
almost 9 years ago in z/OS / BCP_WLM 5 Not under consideration

DS8886 (with 10.000 devices) failed, IOS0002I SQA COMPON=VSM,COMPID=SC1CH,ISSUER=IGVVSERR,OUT_OF_SQA and LPAR crashed

System:IOS Actor:need improved error recovery Description: DS8886 failed (because of Microcode Error).LPARs loose thousands of volumes (with multiple path).IOS recovery procedures need TO many common storage (below).Common Virtual storage constrai...
over 7 years ago in z/OS / BCP_IOS 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

RMF Postprocessor Cache Subsystem Activity report volser filter option

We would like to get a filter option for volsers for the section “Cache Device Activity / Cache Subsystem Device Overview” of the RMF Post Processor Cache Subsystem Activity report. It would be great if we could use generic specifications like "vo...
over 7 years ago in z/OS / RMF 0 Future consideration

Record "V" DCOLLECT IDCAMS

The record type "V" of the DCOLLECT would contain the notion of "SPACE EFFICIENT". It could be much more easy for us to see if this volume is an SE or not.
almost 9 years ago in z/OS / DFSMS Catalog/IDCAMS/AMS 3 Future consideration

Override system wide LE STORAGE(,,0,) setting within FTP to avoid high cpu when transferring tape files

We recently entered a case TS009032448 at IBM in which we addressed a FTP high cpu issue. Transferring a file from disk took less then 1 cpu sec and when transferring the file from tape it consumed 36 cpu seconds. After thorough investigation it a...
over 2 years ago in z/OS / Communications Server 1 Not under consideration

have syntax checker fo pagent

If I want to change pagent, I update the configuration file, and issue F pagent,refresh on the production pagent. If there are problems, I have to roll back and redo the changes. This is not production like behaviour. You can only have one pagent ...
over 2 years ago in z/OS / Communications Server 1 Not under consideration

Allow users to determine actual HSM function run times from CDSs

We are trying to process DFSMShsm MCDS and BCDS to retrieve actual run times of HSM functions (primary space management, secondary space management, automatic backups and automatic dumps). There are complete time and date fields for every function...
over 7 years ago in z/OS / DFSMS HSM 1 Future consideration

Allowing first qualifyer masking in DATASET names

Many legacy naming conventions make it difficult to establish a simplified set of commands to define DATASETS. This is specially hard in the case of sysplexes with many systems so there are DATASETS that somehow identify the system in the first qu...
over 2 years ago in z/OS / RACF 0 Future consideration

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