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

This IBM® RedpaperTM publication provides information about the best practices and performance capabilities when implementing a storage solution using IBM FlashSystem® V9000 9846-AC3 with IBM FlashSystem V9000 9846-AE3 storage enclosures. The results that are achieved and demonstrated are specific to the used configuration. However, they can be used as reference points for other configurations. There was no intention to demonstrate the best or the worst results, or minimal latency, or maximum throughput. We tried to stay closer to the configurations and workloads used by IBM clients and provide reference points for them.

IBM FlashSystem V9000 AE3 and AC3 Performance

Jon Tate

Stefan Neff

Glen Routley

In this IBM® Redbooks® publication, we describe how these products can be combined to provide an encryption and virtualization solution: IBM System Storage® SAN32B-E4 Encryption Switch IBM Storwize® V7000 IBM Tivoli® Key Lifecycle Manager We describe the terminology that is used in an encrypted and virtualized environment, and we show how to implement these products to take advantage of their strengths. This book is intended for anyone who needs to understand and implement the IBM System Storage SAN32B-E4 Encryption Switch, IBM Storwize V7000, IBM Tivoli Key Lifecycle Manager, and encryption.

Implementing the Storwize V7000 and the IBM System Storage SAN32B-E4 Encryption Switch

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

Denis Senin

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