Book description
This IBM Redbooks publication provides an example of the "ideal" Parallel Sysplex environment (one that is configured to deliver the highest levels of application availability), and describes the features and functions used in this environment. For each function, we describe briefly what it does and what its benefit is, and refer to the appropriate implementation documentation.
In this document, we discuss how to configure hardware and software, and how to manage systems processes for maximum availability in a Parallel Sysplex environment. We discuss the basic concepts of continuous availability and describe a structured approach to developing and implementing a continuous availability solution.
This document provides a list of items to consider for trying to achieve near-continuous application availability and should be used as a guide when creating a high-availability Parallel Sysplex.
Information is provided in recommendations lists and will help you configure and manage your IT environment to meet your availability requirements.
This publication is intended to help customers’ systems and operations personnel and IBM systems engineers to plan, implement, and use a Parallel Sysplex in order to get closer to a goal of continuous availability. It is not intended to be a guide to implementing or using Parallel Sysplex as such. It only covers topics related to continuous availability.
Table of contents
- Notices
- Preface
- Chapter 1: Introduction
- Chapter 2: Hardware
-
Chapter 3: z/OS
- Configure software for high availability
- Consoles
- Coupling Facility management
- CF operations
- IBM Health Checker for z/OS and Sysplex
- z/OS msys for Operations
- Sysplex Failure Management (SFM)
- Automatic Restart Manager (ARM)
-
System Logger (LOGR)
- Logstream types
- CF structure considerations
- System-Managed CF Structure Duplexing
- DASD based staging data set considerations (DASD-Only)
- DASD-based staging data set considerations (Coupling Facility)
- DASD-based log data set considerations
- Offload considerations
- Log data retention
- GMT considerations
- System Logger recovery
- System Logger recommendations
- Cross-system Coupling Facility (XCF)
-
GRS
- GRS start options
- Dynamic RNLs
- GRS Ring Availability considerations - Fully connected complex
- GRS Ring Availability considerations - Mixed complex
- GRS Star Availability considerations
- SYNCHRES option
- Resource Name Lists (RNLs)
- RNL design
- GRS monitor (ISGRUNAU)
- RNL syntax checking
- GRS recommendations
- Tape sharing
- JES2
- WLM
- UNIX System Services
- RACF
- DFSMShsm
- Catalog
- Software maintenance
- Testing the sysplex
-
Planned outages
- APPC/MVS configuration
- APPC/MVS Transaction Scheduler
- Authorized Program Facility (APF)
- Diagnostics
- Dump options
- Dump Analysis and Elimination (DAE)
- Console management
- Console group management
- Exits
- Global Resource Serialization (GRS)
- IODF management
- IOS
- LNKLST
- LOGREC error recording
- LPALST
- Message Processing Facility (MPF)
- MVS Message Service (MMS)
- Local Page Data Sets
- Parmlib concatenation
- Products
- Program properties table
- Run-time library services (RTLS)
- SLIP
- System Measurement Facility (SMF)
- Storage Management Subsystem (SMS)
- Subsystem Names (SSN)
- System Resources Manager (SRM)
- Time Sharing Option (TSO)
- UNIX System Services (USS)
- XCF
- Planned outages recommendations
- Unplanned outages
- Chapter 4: Systems Management
- Related publications
- Index (1/3)
- Index (2/3)
- Index (3/3)
- Back cover
Product information
- Title: Achieving the Highest Levels of Parallel Sysplex Availability
- Author(s):
- Release date: December 2004
- Publisher(s): IBM Redbooks
- ISBN: None
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