IBM Z Software


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z/TPF

Showing 282

Request options to suppress SSL HANDSHAKE ERRORs on the TPF console.

SSL HANDSHAKE ERRORs on the console can occur as frequently as 2 messages per minute. When a client accesses the HTTPS server using an uncertified URL or an IP address those error messages are generated on the console. For SSL servers with many cl...
about 5 years ago in z/TPF Product Family / z/TPF 1 Not under consideration

ZMOWN should track core usage and track high water marks

1Mb frame usage and 4K frame usage is not included in ZMOWN statistics. This means that ZMOWN is unable to provide a breakdown of use these critical system resources by owner name. This information would provide critical insight in trouble shootin...
about 10 years ago in z/TPF Product Family / z/TPF 4 Not under consideration

CPSE program check manual dump

In order to get more information on a CPSE program check the customer is requesting that as part of this process the code branch tothe manual dump routine an attempt to take the dump.
about 10 years ago in z/TPF Product Family / z/TPF 2 Not under consideration

Reduce CPU overhead from format-2 global keypointing

The ZMOWN performance collector shows 92% of CPU cycles on an idle VPARs are consumed by CGL9 to perform format-2 global keypointing every second.The source of this overhead is an EVNTC/POSTC/DLAYC loop used by the parent CGL9 ECB to wait for its ...
about 10 years ago in z/TPF Product Family / z/TPF 2 Not under consideration

Eliminate unnecessary resource usage by CDC on VPARs test systems

TPF Control Program creates an ECB every second to check the Continuous Data Collection status in the ICDCCNTL global record.Even if CDC is disabled the global record is updated with a timestamp so must be keypointed every second, also the localti...
about 10 years ago in z/TPF Product Family / z/TPF 2 Not under consideration

snapc and wtopc baseless

Customer is asking that both the snapc and wtopc macro be made baseless to support application that are being written with baseless in mind. Here's an example of an application error.00001364 28768+ DS 0H Align @411.074 01-SNAPC00001364 AF02 0000 ...
over 10 years ago in z/TPF Product Family / z/TPF 2 Not under consideration

ECBRM to limit z/TPF File System INODE usages

We have a limited number of #INODE blocks in the system. A run-away ECB may try to create thousands of files, in a relatively short time period, on File System directories up to the point where INODE shortage can cripple all others interacting wit...
about 5 years ago in z/TPF Product Family / z/TPF 7 Not under consideration

ZSVTT entry will not validate spares for fixed records

We can only validate fixed records and pool records but NOT spare records. Sabre doesn't use the alternate FCTB loader so I'm concerned that we have to IPL the system (downtime if it's a single processor) to load a second FCTB just to validate the...
over 10 years ago in z/TPF Product Family / z/TPF 2 Not under consideration

Enhance ENQC support and provide greater visibility/alerting into the number of ECBs waiting on events

1) There is no means currently for an application to know how many ECBs are waiting on a resource. This means that applications have only two processing options for ENQC 1) if they get the resource or 2) if they don't get the resource. Additional ...
over 10 years ago in z/TPF Product Family / z/TPF 4 Not under consideration

Detect attempts to extend size of Application Stack storage beyond ESPS limit

Attempts to extend Application Stack storage beyond the ESPS limit are not currently detected or handled directly; the stack pointer is set to what should be the new address, but the storage is not mapped. Processing in this scenario inevitably tr...
over 10 years ago in z/TPF Product Family / z/TPF 2 Not under consideration

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