Release Notes

Strobe 18.02 and iStrobe 19.04

April 1, 2019

These Release Notes cover both Strobe 18.02 and iStrobe 19.04.


What’s New

With Strobe 18.02 and iStrobe 19.04, Compuware continues to evolve the next generation of Application Performance Management (APM) on z/OS. The purpose of our next generation solution is to enable our customers to proactively identify, understand, and act upon emerging performance problems in order to be successful in achieving their APM goals.

Note: Strobe Release 18.02 requires Enterprise Common Components (ECC) Release 17.02 or more current, with all current maintenance applied . Click the following link for access to ECC current maintenance: https://go.compuware.com/products/cy/fixes/30240.aspx .

April 1, 2019
Measurement Request Form

The Measurement Request Form has been redesigned to improve the user experience. The form is now logically grouped into three sections: Target, Sampling, and Reporting. A new function to schedule a measurement has been added for Measurement Start.

Preferences

The Preferences page has been updated to split the section into a non-HCI and HCI required section. This allows users to set preferences for Profile and Insight reports without having to connect to an HCI. The CICS Transactions have been updated for clarity to use Include/Exclude.

January 3, 2019
Exclude User-Specified CICS Transactions

For CICS users, there may be transactions that users do not wish to see displayed in reports. These transactions are typically from 3rd-party software.

A new feature creates a list of these transactions (Administration -> Report Configuration -> CICS Transactions).

Each user will have the ability to control whether these transactions are to be displayed (Preferences). If the switch is off , then the user-specified CICS transactions will not appear in the reports. When the switch is turned on, then these user-specified CICS transactions will be displayed in the reports.

Insight Report Updates

Wildcarding for the CICS Region parameter allows users to specify a wildcard character to view multiple regions.

  CICS Transaction Summary

  CICS Transaction Detail

Selectable Job Type allows users to select a specific Job Type such as JES (batch) thereby excluding started tasks.

  Top Job Steps by CPU Time

  Top Users by CPU Time

  Longest Running Job Steps

  Batch Job Execution Detail

Profile Report PDF Print

Users can easily match PDF reports to profiles with the inclusion of the profile name appearing in the top left corner of the PDF report.

October 1, 2018
zAdviser Integration

Enhanced and new added functionality collects Strobe and iStrobe usage data, creates SMF records of this data, and provides the records to Enterprise Common Components to upload for use and analysis by zAdviser. zAdviser can then measure the quality, velocity and efficiency of Mainframe development. Refer to the Enterprise Common Components Advanced Configuration Guide Release 17.02 for detailed instructions on how to enable the creation of zAdviser records.

Profile Immediate Delete Option

The Profile Immediate Delete option allows for a Profile Delete to be performed immediately, without affecting the recurring schedule, if one has been established.

June 28, 2018
Modernization of Usage Display for Reports

Treemap implementation is complete for the following usage reports:

  Program CPU Usage

  Transaction CPU Usage

  Wait Time by Module

  Attribution

Strobe Simple Deploy Enhancement for Start-Up CLIST

The Strobe hlq .SSTRCLST library start-up CLIST member STROBE has been updated to use the Simple Deploy method. This member allocates Compuware dataset names as specified with the SBNODE(PARMLIB) and the Enterprise Common Components (ECC) CMSC PARMLIB member DDSN nnnn . If you do not specify a DDSNSFX, the ECC hlq. SLCXCNTL library default DDSN00 member will be used. Refer to the Enterprise Common Components Installation and Configuration Guide and the Strobe Installation and Configuration Guide for more information at https://go.compuware.com .

April 3, 2018
iStrobe Changes

The following bulleted items represent what’s new within iStrobe:

  Profile Reports for DB2 and MQ Series now has an Expand Branch to expand all nested levels within the selected row.

  Insight Reports includes Additional Parameters allow users to filter the results.

  Insight Reports with Benchmark with Improvement and Degradation parameters which can be set in Preferences. The Insight Report List will identify reports that can utilize benchmarking.

  Changed term CEC (central electronic complex) to more commonly used term CPC (central processor complex) for the Rolling 4 Hour Average Periodic report.

  Measurement will use the Job Name as a default for the Profile Name if not provided.

  SMF logging information with processing information can be found in the istrobeSMF.log

January 4, 2018
Compuware PARMLIB 2

Compuware has enhanced the Compuware PARMLIB parameter processing, including centralized parameter validation. Additionally, some parameters for the Compuware products were changed to reduce their complexity and make them easier to understand and configure. With this cumulative maintenance these changes have been incorporated into the sample parameter members that are supplied in the target sample library.

Enterprise Common Components (ECC) PTF CXS373A provides a parameter migration utility to assist with updating any existing Compuware parameter members at your site. Refer to the Release 17.02 Enterprise Common Components Installation and Configuration Guide for more information about using this utility.

Periodic R4HA Report

This Rolling 4 Hour Average report allows the user to dynamically change the date range using the time axis. This redraws the graph to represent that time. When the graph plots show the hourly level, the user can click the plot and navigate to the MSU over time for all the displayed LPARs.

CEC/LPAR groupings can be saved and reused in the Periodic R4HA report, allowing users to view an entire CEC or groups of CECs and LPARs.

myStrobe Extended Filtering Options

Date filtering can use an inclusive range. Numeric fields (such as CPU, EXCP) also contain an inclusive range. The filters can also be used by specifying only one of the boundaries in the range. This will, in effect, be a greater than (>) sign when using lower boundary, or a less than (<) sign when using the upper boundary. Positional wildcarding (?) can be used for alphanumeric fields to limit the values displayed in the filter selection.

Global Monitoring Criteria with Positional Wild Carding

Positional wildcarding is now available to Global Monitoring criteria (requires additional Strobe 18.02 ptf). It can be used for both the Include and Exclude criteria, allowing users to incorporate their naming conventions into Global Monitoring criteria.

Other Updates

  New insight report for Job Frequency for Projected Annualized CPU for Job Step.

  RESTful API created for measurement request used in Topaz.

  Select profile tabular reports can be exported to PDF.

  New profile report for Working Set Size through Time.

November 1, 2017
Enhanced Strobe Installation Guides

The Strobe Installation and Configuration Guide has been rewritten and simplified for Release 18.02 to focus on the actual tasks required to install, configure, and customize a Strobe new installation or perform an upgrade on an existing installation. A second, newly created manual, the Strobe Advanced Configuration Guide, includes more specialized configuration and customization information previously contained in the original installation guide. These new guides are available on the FrontLine Strobe documentation site at https://go.compuware.com.

October 2, 2017
Compuware PARMLIB Enhancement

Compuware has enhanced the Common PARMLIB processing controlled by the Compuware Mainframe Services Controller (CMSC), including centralized parameter validation. These changes have been incorporated into the sample parameter members STRBALL, STRB00, and STRT00 in the Strobe hlq .SSTRPARM library. To effect these changes, Enterprise Common Components 17.02 is required with current maintenance applied.

Import Notes with Profile

When a Profile containing Notes is exported, it creates both a profile.xml and a notes.xml file. Then, when importing a Profile with the Notes, you will use the ZIP file created that contains both the profile.xml and notes.xml files.

myStrobe Filters

Additional myStrobe filters are introduced to facilitate quicker results. Owner ID and LPAR are now specific for those two columns. This allows a user to quickly narrow the result to a specific user (Owner ID) to find their profile reports.

Hide IBM CICS Supplied Transactions

There is now a preference that can be used to eliminate the IBM CICS Supplied Transactions from the reports. When set to "Off", the IBM CICS Supplied Transactions will not display in the profile reports or the insight reports. This allows the user to focus on the application transactions in the reports.

June 28, 2017
Simplified Strobe Common PARMLIB Members

With Release 18.02, to simplify the installation process for new Strobe installations, the STRB00 and STRT00 members have been modified to only include parameters that should be evaluated at installation time. A new member STRBALL has been provided as a reference point for all other Strobe parameters. Refer to the Strobe installation guide for the complete list of Strobe Release 18.02 parameters with their descriptions, options, and defaults.

Strobe Deprecated PARMLIB Parameters

The following Strobe Parameters are being deprecated and may be permanently removed from the product at some point in the future:

  ATTFLTR

  CVLIB

  DB2IFIFLAG

  LINEPG

  LOGWARN

  REMV_OLD

  SVCOVR

  SWAP

  UI_IPUBLISH

  UI_ERPORT

  UI_ERIPADDR

  GM_DBUG

  GM_VANTAGE

  GM_VANTHOST

  GM_VANTPORT

  GM_VANTAPPL

Enhanced Global Monitoring Statistics for Improved Diagnostics

Strobe Global Monitoring has been enhanced to provide additional statistics for improved diagnostics. New Global Monitoring parameters using the MVS MODIFY command have been added for generating CICS, IMS, and Global Monitoring Data Pump statistics. Global Monitoring SMF data control parameters have also been added for use with the MVS MODIFY command. Refer to the Strobe installation guide for more information.

Consolidation of Security within CES for all Web-Based Products

Security, Users, Roles, and Groups have been removed from iStrobe and consolidated under Compuware Enterprise Services. They are located under the Compuware Enterprise Services Administration Security feature.

Separation of Measurements and Profiles within myStrobe

The Measurement Request and Profile reports are separated as they depict different entities. Datatable column headings are relevant to each grouping with each table having independent sorting. Today, users use Strobe ISPF for the status listings. This redesign allows customer’s to move their users out of Strobe's ISPF version and into iStrobe.

Baseline myStrobe Entry

The Baseline feature allows users to create average times in the Totals columns for those profiles included in the baseline. The resulting baseline can then be used within myStrobe to compare the totals.

Insight Report Updates

iStrobe Insight report changes to include CPU Total Time to CICS and JOB reports.

CICSPlex LPAR Filter

iStrobe CICSPlex report allows LPAR filtering for identifying CICS regions down to an LPAR level.

April 3, 2017
Embedded Source Support

Strobe Release 18.02 introduces Embedded Source Support (ESS), available with Compuware Shared Services (CSS). CSS is SMP/E installed with Enterprise Common Components (ECC) and requires Release 17.02 for Embedded Source Support. The CSS COBOL Language Processor (LP) new ESS command for COBOL Version 5.1 and more current stores the COBOL compiler listing and other program data, not in a VSAM or sequential DDIO file, but instead in ESS records in the executable binary, the actual load module.

Compuware source solutions have been changed to first look for the ESS records and if found will not search for any DDIO file. However, if the ESS records are not found, the usual DDIO file search mechanism, as currently implemented in Strobe, will be used.

Refer to the Compuware Shared Services User/Reference Guide, Release 17.02 version, for more information about Embedded Source Support. Download this guide from the ECC products documentation site at https://go.compuware.com.

SRB and Enclave Reporting

Programs are running on zIIPs via SRBs and other technological advances have necessitated changes in how Strobe works. The DIE (disabled interrupt exit) is utilized to obtain more accurate information, which includes SRB and enclave data. New reports in Strobe have been created to show SRB activity within the measured address space. These reports are available only within the Strobe wide profile report.

Profile Overwrite Parameter

The new PARMLIB GM_PROFOVWRT Global Monitoring parameter specifies whether existing profiles are overwritten. The default value is No.

CICS Transaction Utilization

iStrobe has added a new Insight report named CICS Transaction Utilization. This report allows the performance analyst to specify a date range and a benchmark period of time. The report will then display the deltas for that date comparison for Service Units/Transaction, Transaction Count, and Total Service Units. This additional information is useful for the analyst to identify the overall affect over a period of time.

SMF Archive Database Creation

The creation of the iStrobe SMF Archive Database is now centralized within CES Administration ==> Database.


Software and Hardware Requirements
Strobe

For Strobe software and hardware requirements, refer to the Strobe Installation and Configuration Guide on the Compuware Support Center website at https://go.compuware.com.

iStrobe

For iStrobe software and hardware requirements, refer to the Compuware Web Products Installation and Configuration Guide on the Compuware Support Center website at https://go.compuware.com.


Compuware Products End of Support Dates

Refer to the Compuware Product Currency Tables at https://frontline.compuware.com/apps/oscharts/zos.aspx for the associated End of Support dates.


Technical Notes

  The following IBM PTFs are required for correct in_DB2 (Class 2) CPU reporting on the Strobe SQL Activity reports:

-- PTF UI39802 for DB2 V10

-- PTF UI39803 for DB2 V11.

  If your site is using iStrobe SQLAF On Demand, Enterprise Common Components (ECC) Host Communications Interface (HCI) PTF CXR119A requires iStrobe/CES Release 17.02.03 or more current.

  A Google Chrome security update prohibits viewing of WebHelp when the help is deployed locally from a file server (as opposed to a Web server). Attempting to view locally deployed help displays a blank help window. Compuware suggests that online help be viewed using Internet Explorer. Alternatively, Chrome's security feature can be turned off by launching Chrome with the command line option --allow-file-access-from-files. This method should only be used when opening local WebHelp that you trust.

  IBM DB2 for z/OS V10 PTF UK77953 is required for correct population of SQL execution statistics displayed in the new SQL Activity Statement Metrics sections available in DB2 V10.

  When used together, Strobe and iStrobe must be on the same release level in order to exploit any new measurement functionality in iStrobe.

  To continue using the Strobe Measurement Request functionality in Topaz Workbench, following the upgrade of iStrobe to 18.2.3 or higher, upgrade Topaz Workbench to 18.2.4 or higher.

  In the iStrobe Linux installation, when you back up from a password prompt, all data entry is masked with asterisks.

  The following error message may occur in iStrobe when clicking a link to a profile in a Strobe Insight report.

Uncaught SecurityError: Blocked a frame with origin "http://<myMachine.fullyQualified.domain>:<port>" from accessing a frame with origin "http://<myMachine>:<port>". Protocols, domains, and ports must match.

You can avoid this error by using the same domain to access iStrobe as was specified in the Compuware Enterprise Services (CES) URL during installation.

  During a CES and iStrobe installation, the user's specified JDK must be 64-bit.

  When performing an upgrade installation of iStrobe, be sure to stop the CES server before beginning the upgrade.

  When running CES, iStrobe, Fault Analytics, and/or TJP in a Java environment that uses hardware encryption, the user ID under which CES runs will require authorization to execute the following CSFSERV functions:

-- CSFIQF

-- CSFRNGL

-- CSFOWH

-- CSFPKE

-- CSFDSV


Known Issues

  When installing iStrobe on Windows, you may encounter an error referring to the Java VM. This is a problem with InstallAnywhere and Java 8. It can be resolved by removing the following entry from the Path variable:

C:\ProgramData\Oracle\Java\javapath

The Path variable is accessed from:

Control Panel>System>Advanced System Settings>Environment Variables>System Variables

  If you specify a temporary directory smaller than that which is required for installation, you may be presented with a message indicating that your evaluation period has expired. You can reallocate space and restart the installation process.

  Email notifications for downloaded profiles are not sent when iStrobe is configured for parallel profile processing.

  The Top CPU Utilization Jobs report fails when using Derby as the database.


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