Book description
IBM® z/VM® 6.2 introduced significant changes to z/VM with a multi-system clustering technology that allows up to four z/VM instances in a single system image (SSI) cluster. This technology is important because it offers you an attractive alternative to vertical growth by adding new z/VM systems. In the past, this capability required duplicate efforts to install, maintain, and manage each system. With SSI, these duplicate efforts are reduced or eliminated.
Support for live guest relocation (LGR) allows you to move Linux virtual servers without disrupting your business or incurring loss of service, thus reducing planned outages. The z/VM systems are aware of each other and take advantage of their combined resources. LGR enables you to relocate guests from a system requiring maintenance to a system that will remain active during maintenance.
A major advantage for DB2 v10 customers is that using z/VM 6.2 does not require any changes to existing DB2 structures. This remarkable benefit is due to the fact that DB2 v10 is installed as part of the LInux guest on z/VM and is fully integrated into LGR. This allows you to smoothly move DB2 v10 when you move Linux virtual servers, without interrupting either DB2 v10 or z/VM operations and services.
This IBM Redbooks® publication will help you understand how DB2 10 on Linux for System z® behaves while running on a z/VM that is being relocated using z/VM’s 6.2 Live Guest Relocation feature.
In this book, we explore memory management, the DB2 Self-tuning memory manager feature, time synchronization, networking, and storage and performance considerations with regards to relocation. We also offer some best practices found during a live guest relocation for DB2 v10.
Table of contents
- Notices
- Preface
- Chapter 1: Overview of z/VM 6.2 and DB2 v10 autonomic features
- Chapter 2: Our lab environment
- Chapter 3: General memory management
-
Chapter 4: DB2 Self-tuning memory manager and z/VM live guest relocation
- DB2 Self-tuning memory manager
- Determining DB2 memory configuration
-
DB2 LGR on a memory-constrained target cluster member
- Verifying database sort heap size and bufferpool page size
- Varying database sort heap and buffer pool size
- Verifying new database configuration
- Load generation queries
- Analysis of the DB2 memory tracker report
- Relocating a Linux guest to a memory-constrained cluster member
- Verification of z/VM health after the relocation
- Load generation and database memory setup
- Test conclusions
- Chapter 5: Time synchronization
- Chapter 6: Networking
- Chapter 7: Best practices for DB2 v10 during live guest relocation
- Related publications
- Index
- Back cover
Product information
- Title: DB2 10 for Linux on System z Using z/VM v6.2, Single System Image Clusters and Live Guest Relocation
- Author(s):
- Release date: November 2012
- Publisher(s): IBM Redbooks
- ISBN: None
You might also like
book
Set up Linux on IBM System z for Production
This IBM® Redbooks® publication shows the power of IBM System z® virtualization and flexibility in sharing …
book
IBM z/VM and Linux on IBM System z: Virtualization Cookbook for Red Hat Enterprise Linux 4
In this IBM Redbooks publication, we assume that you have a general familiarity with IBM eServer …
book
IBM TotalStorage DS6000 Series: Performance Monitoring and Tuning
This IBM Redbooks publication provides guidance about how to configure, monitor, and manage your IBM TotalStorage …
book
Data Integrity with DB2 for z/OS
DB2 provides functions to guarantee integrity at the system level and at the application level. From …