System zTidbitz
zTidbitz are a collection of condensed or summary information on a wide range of z/OS and System z hardware topics. You can think of them as "cheat sheets" or reference sheets in that they greatly condense considerably more product documentation. So they leave out a lot of detail and subtleties, but nevertheless, they can be very useful if you need a reminder or quick review of a topic area you are somewhat familiar with. Enjoy!
NEW
System z APACHE SPARK -Posted 04/26/2016
RACF remote sharing facility (RRSF) - Posted 04/01/2016
LinuxONE plus z13 Enhancements - Posted 03/11/2016
z/OS' Module Placment - Part 2 - Posted 03/09/2016
z/OS' Module Placement - Posted 02/23/2016
Click on a topic category below and you will be taken to the collection of z/Tidbitz for that topic:
Application Development
Automatic Binary Optimizer - Posted 11/20/2015
COBOL V5 - Next Generation - Posted 07/15/2014
Rational Developer for System z
z/OS' Metal C -Revised 04/10/2012
z/OS' Application Integration with R13 - Posted 05/21/12
Basic z/OS Features
EREP - Posted 11/20/2015
z/OS Address Space Private Areas - Posted 01/16/2015
z/OS V2R1 Batch Runtime - Posted 09/24/2014
z/OS V2R1 Virtual Lookaside Facility - Posted 09/24/2014
Base Control Program Interface (BCPii) - Posted 07/11/2011
Catalog - Posted 04/26/2011
Cross Memory ServicesExtended System Queue Area in z/OS 1.11
Installation - Post Installation Fixes
Problem Determination - Posted 01/10/2011
Software Licensing - Posted 07/29/2011
zEnterprise Cloud Computing - Posted 10/7/2011
z/OS 1.11 Upgrade and Migration
z/OS Control Blocks - Posted 06/29/2011
zOS Guests in zVM - Posted 04/07/2014
z/OS R13 REST API -Posted 11/18/11
z/OS V1.13 - Posted 08/29/2011
z/OS Virtual Storage Map and Content Overview - Posted 01/17/2011
z/OS Withdrawn Fuctions up to Aug 2011 - Posted 08/16/2011
z/OS Batch Runtime - Posted 01/09/2012
z/OS Management Facility and WLM - Posted 02/06/2012
z/OS' 64-bit Address Space - Posted 12/12/2012
z/OS Version 2 Release 1 - Posted 11/05/2013
z/OS Version 2 Release 2 Brief - Posted 01/30/2015
z/OS' V2R1 Health Checker - Posted 02/19/2014
z/OS V2 R2 Security Brief - Posted 02/18/2015
Input/Output (I/O)
z/OS V21 Dynamic Channel Management - Posted 09/12/2014
An I/O White Paper for System z
Channel Subsystem
Fiber Channel Multiplex-Demultiplex
FICON A Reference - Posted 02/19/2014
Life of an I/O Operation
Multiple Logical Channel Subsystem
Parallel Access Volumes (PAV)
z196 and the I/O Subsystem
The zEC12 & IOS - Posted 09/21/2012
Java
Java Batch
Java Virtual Machine
J9 JVM
CICS' 64-Bit Java - Posted 04/20/2012
Operator Commands
Networking
OSA vs HiperSockets vs RoCE - Posted 11/07/2014
Parallel Sysplex
CFCC_Levels
DB2 on z Parallel Sysplex Clarification
SYSPLEX & Parallel Sysplex
Sysplex Distributor
Sysplex Failure Manager
Performance Monitoring
Capture Fault Events
RMF Coupling Facility(CF) Reports
The LSPR - Q&A - posted 04/16/2013
Storage Management
DFSORT Customization and Tuning - Posted 12/12/2014
Pinning Data in Storage_VLF
VSAM_Extended Format_Extended Addressability
VSAM Linear Data Sets - Posted 07/22/2013
VSAM Record Level Sharing - Posted 07/29/2013
System Availability
Disaster Recovery (GDPS)
SMART Failure Analysis
zOS_Automatic Restart Manager
Server Hardware
z Systems Logical Partition Characteristics
Controlling Execution of zIIPs and zAAPs
Cryptographic Hardware
Hiper Dispatch
History of the Mainframe
HMC and IOCP
How different are OS/390 and z/OS
IPSec and IIPs for z/OS
LPAR Weight Concepts - Posted 01/02/14
Logical Partitioning Processors and Weights
Micro Code Concepts
Processor Storage Subsystem
PR/SM CPU Dispatching
Reliability_Availability_Serviceability
Running a zAAP Workload on zIIP Engine - Posted 04/04/2011
System Assist Processor(SAP) - the free CPU on z
zEC12 - Posted 09/21/2012
HiperDispatch Revisited - Posted 05/29/2013
SMC-R - Posted 09/04/2013
A Sample zEnterprise Implementation - Posted 02/07/2011
DataPower X150z - Posted 03/11/2011
Glossary & Terms
Out of Order Execution - Posted 11/02/2010
Platform Performance Management - Posted 09/07/2010
Platform Performance Planning
Unified Resource Manager
Using zEnterprise Architecture
z196 Feature Summary - Posted 01/10/2011
zEnterprise (z196) Overview
zManager and Network Extensions
Ensembles & zBX Revisited - Posted 01/02/2013
10 minutes of z10 ElevatorPitch
EAV_HyperPAV
Hiper Dispatch
z10 Enterprise Class
z10 Large Page Support
z10 SC_engines
The EC12 - Posted 09/21/2012
z/OS's zAware - Posted 10/05/2012
Flash Express - Posted 04/04/2013 Modified - 04/14/2015
zEnterprise Data Compression - Posted 08/19/2013
z13 Security - Posted 05/07/2015
z13 IOS & FICON16S - Posted 04/27/2015
New z13 Instruction Technology - Posted 03/25/2015
IBM z13 - Posted 03/05/2015
Transaction and Database Processing
IBM DB2 Analytics Accelerator V21 Posted 03/15/2012
Total Cost of Ownership
z/OS Unix
Find z/OS UNIX
Hierarchical File Systems
Shared File Systems
Unix System Services Messages and Codes
zFS file systems in sysplex sharing
z/OS Batch Unix - Posted 12/22/2011
Some z/OS Unix Tidbits - Posted 03/04/2013
zOS Unix Shell Command - Posted 04/14/2014
Workload Management
A Closer Look at WLM
Blocked Workloads
Cooperative Management & z/OS' WLM - Posted 06/29/2011
Dispatchable Unit of Work (UOW)
Enclaves & Specialty Processors
The Job Entry Subsystem (JES)
Special Protection Options for Critical Workloads - Posted 02/24/2014
Websphere Application Server (WAS)' WLM 101
Websphere Application Server(WAS) & Resource Group (RG) Protecting Work
WLM Resource Groups
Workload Management (WLM) 101
z/OS' WLM Frequently Asked Questions Posted 09/04/2012
