Preface

This IBM Redbook describes the IBM TotalStorage® DS6000 storage server series, its architecture, its logical design, hardware design and components, advanced functions, performance features, and specific characteristics. The information contained in this redbook is useful for those who need a general understanding of this powerful new disk subsystem, as well as for those looking for a more detailed understanding of how the DS6000 series is designed and operates.

The DS6000 series is a follow-on product to the IBM TotalStorage Enterprise Storage Server® with new functions related to storage virtualization and flexibility.

The DS6000 series is a storage product targeted for the midrange market, but it has all the functions and availability features that normally can be found only in high end storage systems. In a very small enclosure, which fits in a standard 19-inch rack, the DS6000 series offers capacity, reliability functions, and performance similar to those of an ESS 800 or comparable high-end storage systems.

For example, zSeries® customers now also have the option to buy a midrange priced storage subsystem for their environment without giving up the functionality of an ESS.

In addition to the logical and physical description of the DS6000 series, the fundamentals of the configuration process are also described in this redbook. This is useful information for proper planning and configuration for installing the DS6000 series, as well as for the efficient management of this powerful storage subsystem.

Characteristics of the DS6000 series described in this redbook also include the DS6000 copy functions: FlashCopy®, Metro Mirror, Global Copy, and Global Mirror. The performance features, particularly the switched FC-AL implementation of the DS6000 series, are also explained, so that the user can better optimize the storage resources of the computing center.

The team that wrote this redbook

This redbook was produced by a team of specialists from around the world working at the Washington Systems Center in Gaithersburg, MD.

Cathy Warrick is a project leader and Certified IT Specialist in the IBM International Technical Support Organization. She has over 25 years of experience in IBM with large systems, open systems, and storage, including education on products internally and for the field. Prior to joining the ITSO two years ago, she developed the Technical Leadership education program for the IBM and IBM Business Partner’s technical field force and was the program manager for the Storage Top Gun classes.

Olivier Alluis has worked in the IT field for nearly 7 years. After starting his career in the French Atomic Research Industry (CEA - Commissariat à l'Energie Atomique), he joined IBM in 1998. He has been a Product Engineer for the IBM High End Systems, specializing in the development of the IBM DWDM solution. Four years ago, he joined the SAN pre-sales support team in the Product and Solution Support Center in Montpellier working in the Advanced Technical Support organization for EMEA. He is now responsible for the Early Shipment Programs for the Storage Disk systems in EMEA. Olivier’s areas of expertise include: high-end storage solutions (IBM ESS), virtualization (SAN Volume Controller), SAN and interconnected product solutions (CISCO, McDATA, CNT, Brocade, ADVA, NORTEL,

© Copyright IBM Corp. 2004. All rights reserved.

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