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!

 

Click on a topic category below and you will be taken to the collection of zTidbitz for that topic:

• Application Development

• Basic z/OS Features

• Input/Output (I/O)

• Java

• Operator Commands

• Parallel Sysplex

• Performance Monitoring

• Storage Management

• System Availability

• Server Hardware

  • zEnterprise (z196)

  • z9 Features

  • z10 Features

  • zEC12

• Transaction and Database Processing

• Total Cost of Ownership

• Unix

• Workload Management

 

---

 

Application Development

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

Base Control Program Interface (BCPii) - Posted 07/11/2011

Batchpipes for z/OS

Capacity Provisioning     

Catalog - Posted 04/26/2011     

CLIST_Gregorian to Julian

Cross Memory Services          

Decimal Floating Point

Extended Addressability

Extended System Queue Area in z/OS 1.11    

Hour Glass              

Installation - Post Installation Fixes

Language Environment

Logs and the Logger

Problem Determination - Posted on 01/10/2011         

Processes Enclaves & Threads

Resource Serialization

Resource Recovery Services 

Started Task Control

Software Licensing - Posted  07/29/2011

Subspace

Virtual Storage Access Method 

V=R Terminology

zEnterprise Cloud Computing - Posted 10/7/2011

z/Architecture Storage

z/OS 1.11

z/OS 1.11 Upgrade and Migration

z/OS Control Blocks - Posted  06/29/2011

z/OS Management Facility

z/OS R13 REST API -Posted  11/18/11

z/OS System Overview

z/OS V1.12

z/OS V1.13 - Posted on 08/29/2011

z/OS Virtual Storage Map and Content Overview - Posted on 01/17/2011

z/OS Withdrawn Fuctions up to Aug 2011 - Posted  08/16/2011   

z/OS XML Services

z/OS Batch Runtime - Posted 01/09/2012

z/OS Management Facility and WLM - Posted 02/06/2012

zOS' 64-bit Address Space - Posted 12/12/2012

 

Input/Output (I/O)

An I/O White Paper for System z
Channel Subsystem
Fiber Channel Multiplex-Demultiplex
Life of an I/O Operation
Multiple Logical Channel Subsystem
Parallel Access Volumes (PAV)
z196 and the I/O Subsystem

The zEC12 & IOS - Posted 09/21/12

 

Java

Java Batch
Java Virtual Machine
J9 JVM

CICS' 64-Bit Java  Posted on 04/20/2012

 

 

Operator Commands

MVS Console Commands

 

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

BDAM vs VSAM
Pinning Data in Storage_VLF
VSAM_Extended Format_Extended Addressability

 

System Availability

Disaster Recovery (GDPS)
SMART Failure Analysis
zOS_Automatic Restart Manager

 

Server Hardware

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
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 on 04/04/2011
System Assist Processor(SAP) - the free CPU on z

zEC12 - Posted on 09/21/2012

• zEnterprise (z196)

  A Sample zEnterprise Implementation - Posted on 02/07/2011
  DataPower X150z - Posted on 03/11/2011
  Glossary & Terms
  Out of Order Execution - Posted on 11/2/2010
  Platform Performance Management - Posted on 09/7/2010
  Platform Performance Planning
  Unified Resource Manager
  Using zEnterprise Architecture
  z196 Feature Summary - Posted on 01/10/2011
  zEnterprise (z196) Overview
  zManager and Network Extensions

  Ensembles & zBX Revisited - Posted on 01/02/2013

• z9 Features

  Logical System Structure

• z10 Features

  10 minutes of z10 ElevatorPitch
  EAV_HyperPAV
  Hiper Dispatch
  z10 Enterprise Class
  z10 Large Page Support
  z10 SC_engines

• zEC12

  The EC12 - posted 09/21/12

  z/OS's zAware - posted 10/05/12

             Flash Express - posted 04/04/2013

Transaction and Database Processing

IMS_CONNECT_Brief
IMS_Then and Today
zIIP's DRDA

IBM DB2 Analytics Accelerator V21  Posted on 03/15/2012

 

 

Total Cost of Ownership

CSC Data Center Consolidation

 

Unix

Find z/OS UNIX         
Hierarchical File Systems
Shared File Systems
Unix System Services Messages and Codes
zFS file systems in sysplex sharing
zOS Unix

zOS' Batch Unix - Posted on 12/22/2011

Some Unix z/OS Tidbits - Posted on 03/04/2013

 

Workload Management

A Closer Look at WLM              
Blocked Workloads            
Cooperative Management & z/OS' WLM - Posted on 06/29/2011             
Dispatchable Unit of Work (UOW)
Enclaves & Specialty Processors
The Job Entry Subsystem (JES)
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 on 09/04/2012