IBM Redbooks

Bertrand Dufrasne

Gero Schmidt

Jana Jamsek

Peter Kimmel

Hiroaki Matsuno

Flavio Morais

Lindsay Oxenham

Antonio Rainero

Denis Senin

This IBM® RedpaperTM publication describes the concepts and functions of the IBM System Storage® DS8000® I/O Priority Manager. The DS8000 I/O Priority Manager enables more effective storage consolidation and performance management combined with the ability to align quality of service (QoS) levels to separate workloads in the system. With DS8000 I/O Priority Manager, the system can prioritize access to system resources to achieve the volume's desired QoS based on defined performance goals (high, medium, or low) of any volume. I/O Priority Manager constantly monitors and balances system resources to help applications meet their performance targets automatically, without operator intervention. Starting with DS8000 Licensed Machine Code (LMC) level R6.2, the DS8000 I/O Priority Manager feature supports open systems and IBM System z®. DS8000 I/O Priority Manager, together with IBM z/OS® Workload Manager (WLM), provides more effective storage consolidation and performance management for System z systems. Now tightly integrated with Workload Manager for z/OS, DS8000 I/O Priority Manager improves disk I/O performance for important workloads. It also drives I/O prioritization to the disk system by allowing WLM to give priority to the system's resources automatically when higher priority workloads are not meeting their performance goals. Integration with zWLM is exclusive to DS8000 and System z systems. The paper is aimed at those who want to get an understanding of the DS8000 I/O Priority Manager concept and its underlying design. It provides guidance and practical illustrations for users who want to exploit the capabilities of the DS8000 I/O Priority Manager.

DS8000 I/O Priority Manager

Hernando Bedoya

Paul Swenson

Dave Martin

Sabine Jordan

Monti Abrahams

Jose Goncalves

Kent Kingsley

Vivian Kirkpatrick

Chris Place

Roberta Placido

Larry Youngren

Jim Denton

Kolby Hoelzle

Fred Robinson

IBM® PowerHATM for i (formerly known as HASM) is the IBM high availability disk-based clustering solution for the IBM i 6.1 operating system. PowerHA for i when combined with IBM i clustering technology delivers a complete high availability and disaster recovery solution for your business applications running in the IBM System i® environment. PowerHA for i enables you to support high-availability capabilities with either native disk storage or IBM DS8000TM or DS6000TM storage servers. This IBM Redbooks® publication gives a broad understanding of PowerHA for i. This book is divided in four major parts: Part 1, "Introduction and Background" on page 1, provides a general introduction to clustering technology and some background. Part 2, "PowerHA for i setup and user interfaces" on page 69, describes and explains the different interfaces that PowerHA for i has. It also describes the migration process to this product and some sizing guidelines. Part 3, "Implementation examples using PowerHA for i" on page 319, explains how to use PowerHA for i with three major ERP solutions, such as SAP®, Lawson M3, and Oracle® JD Edwards®. Part 4, "Other IBM i 6.1 high availability enhancements" on page 349, explains additional IBM i 6.1 announced enhancements in high availability.

Implementing PowerHA for IBM i

Jim Cook

Dan Johansson

Kohichiroh Nishiue

This IBM Redbooks publication provides a getting started level of information about supporting the IBM Virtualization Engine TS7510 under i5/OS, primarily using the Backup Recovery and Media Services (BRMS), 5722-BR1, management product. BRMS is the primary backup and recovery management product for i5/OS. This book cannot make you an expert in i5/OS backup and recovery or in the use of BRMS. It also cannot make you an expert in full usage and management of the IBM Virtualization Engine TS7510 capabilities. More complete coverage of the TS7510 is included in the book IBM Virtualization Engine TS7510: Tape Virtualization for Open Systems Servers, SG24-7189. However, this book does provide sufficient information and examples to get you up and running with the IBM Virtualization Engine TS7510 attached to an i5/OS partition or system using BRMS. This book also helps you to understand where the IBM Virtualization Engine TS7510 can fit into your complete set of backup and recovery processes where multiple systems or servers, or logical partitions have to save data to a common repository. The TS7510 helps you to minimize your backup window, facilitates data sharing among the multiple systems, and helps you to minimize your total cost of ownership (TCO) in the backup and recovery area.

The IBM Virtualization Engine TS7510: Getting Started with i5/OS and Backup Recovery and Media Services

Jon Tate

Falk Schneider

IBM® Storwize® HyperSwap® is a response to increasing demand for continuous application availability, minimizing downtime in the event of an outage, and non disruptive migrations. IT centers with IBM i can take full advantage of the HyperSwap solution. In this IBM RedpaperTM publication, we provide instructions to implement Storwize HyperSwap with IBM i. We also describe some business continuity scenarios in this area, including solutions with HyperSwap and IBM i Live Partition Mobility, and a solution with HyperSwap and IBM PowerHA® for IBM i.

Storwize HyperSwap with IBM i

This IBM® Redbooks® publication provides guidance about how to configure, monitor, and manage your IBM System Storage® DS8800 and DS8700 storage systems to achieve optimum performance. It describes the DS8800 and DS8700 performance features and characteristics, including IBM System Storage Easy Tier® and DS8000® I/O Priority Manager. It also describes how they can be used with the various server platforms that attach to the storage system. Then, in separate chapters, we detail specific performance recommendations and discussions that apply for each server environment, as well as for database and DS8000 Copy Services environments. We also outline the various tools available for monitoring and measuring I/O performance for different server environments, as well as describe how to monitor the performance of the entire DS8000 storage system. This book is intended for individuals who want to maximize the performance of their DS8800 and DS8700 storage systems and investigate the planning and monitoring tools that are available. The IBM System Storage DS8800 and DS8700 storage system features, as described in this book, are available for the DS8700 with Licensed Machine Code (LMC) level 6.6.2x.xxx or higher and the DS8800 with Licensed Machine Code (LMC) level 7.6.2x.xxx or higher. For information about optimizing performance with the previous DS8000 models, DS8100 and DS8300, see the following IBM Redbooks publication: DS8000 Performance Monitoring and Tuning, SG24-7146.

DS8800 Performance Monitoring and Tuning

Jana Jamsek

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