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Front cover
The IBM TotalStorage Storage
DS8000 Series: s:
Concepts and Architecture Architecture
Advanced features and performance
breakthrough with POWER5 technology
Configuration flexibility with LPAR
and virtualization
Highly scalable solutions for
on demand storage
Cathy Warrick Christine O’Sullivan
Olivier Alluis Stu S Preacher
Werner Bauer Torsten Rothenwaldt
Heinz Blaschek Tetsuroh Sano
Andre Fourie Jing Nan Tang
Juan Antonio Garay Anthony Vandewerdt
Torsten Knobloch Alexander Warmut
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International Technical Support Organization The IBM TotalStorage DS8000 Series: Concepts and Architecture April 2005 SG24-6452-00
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Note: Before using this information and the product it supports, read the information in “Notices” on page xiii. First Edition (April 2005) This edition applies to the DS8000 series per the October 12, 2004 announcement. Please note that pre-release code was used for the screen captures and command output; some details may vary from the generally available product. Note: This book is based on a pre-GA version of a product and may not apply when the product becomes generally available. We rec
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Contents Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xv The team that wrote this redbook. . . . . . . . . . . . . . . . . . . . .
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2.4.2 Disk enclosures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 2.5 Host adapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 2.5.1 FICON and Fibre Channel protocol host adapters . . . . . . . . . . . . . . . . . . . . . . . . 38 2.6 Power and cooling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 2.7
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5.3 The abstraction layers for disk virtualization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 5.3.1 Array sites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 5.3.2 Arrays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 5.3.3 Ranks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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8.5.1 S-HMC network requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153 8.5.2 Remote support connection requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 8.5.3 Remote power control requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 8.5.4 SAN requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 Chapter 9. Configuration planning . . . .
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10.3.1 Configuring a storage complex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211 10.3.2 Configuring the storage unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212 10.3.3 Configuring the logical host systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216 10.3.4 Creating arrays from array sites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219 10.3.5 Creating extent pools . .
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12.4.1 Workload characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265 12.4.2 Cache size considerations for open systems . . . . . . . . . . . . . . . . . . . . . . . . . . 265 12.4.3 Data placement in the DS8000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265 12.4.4 LVM striping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266 12.4.5 Determining the number
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Chapter 15. Open systems support and software . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319 15.1 Open systems support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320 15.1.1 Supported operating systems and servers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320 15.1.2 Where to look for updated and detailed information . . . . . . . . . . . . . . . . . . . . . 320 15.1.3 Differences to the ESS 2105. . . . . . . . . .
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HBA and operating system settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366 SDD for Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366 Windows Server 2003 VDS support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367 HP OpenVMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368 FC port conf
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Online resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 414 How to get IBM Redbooks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 415 Help from IBM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 415 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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xii DS8000 Series: Concepts and Architecture
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Notices This information was developed for products and services offered in the U.S.A. IBM may not offer the products, services, or features discussed in this document in other countries. Consult your local IBM representative for information on the products and services currently available in your area. Any reference to an IBM product, program, or service is not intended to state or imply that only that IBM product, program, or service may be used. Any functionally equivalent product, progra
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Trademarks The following terms are trademarks of the International Business Machines Corporation in the United States, other countries, or both: Eserver® DFSMShsm™ MVS™ Redbooks (logo) ™ DFSORT™ Notes® ibm.com® Enterprise Storage Server® OS/390® iSeries™ Enterprise Systems Connection OS/400® i5/OS™ Architecture® Parallel Sysplex® pSeries® ESCON® PowerPC® xSeries® FlashCopy® Predictive Failure Analysis® z/OS® Footprint® POWER™ z/VM® FICON® POWER5™ zSeries® Geographically Dispersed Parallel Redb
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Preface This IBM® Redbook describes the IBM TotalStorage® DS8000 series of storage servers, its architecture, 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 series of disk enterprise storage servers, as well as for those looking for a more detailed understanding of how the DS8000 series is designed and op
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Werner Bauer is a certified IT specialist in Germany. He has 25 years of experience in storage software and hardware, as well as S/390®. He holds a degree in Economics from the University of Heidelberg. His areas of expertise include disaster recovery solutions in enterprises utilizing the unique capabilities and features of the IBM Enterprise Storage Server, ESS. He has written extensively in various redbooks, including Technical Updates on DFSMS/MVS® 1.3, 1.4, 1.5. and Transactional VSAM.
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working on System/34, System/38™, AS/400®, and iSeries™. Most recently, he has focused on iSeries Storage, and at the beginning of 2004, he transferred into the IBM TotalStorage division. Over the years, Stu has been a co-author for many Redbooks, including “iSeries in Storage Area Networks” and “Moving Applications to Independent ASPs.” His work in these areas has formed a natural base for working with the new TotalStorage DS6000 and DS8000. Torsten Rothenwaldt is a Storage Architect in Ger
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Front row - Cathy, Torsten R, Torsten K, Andre, Toni, Werner, Tetsuroh. Back row - Roland, Olivier, Anthony, Tang, Christine, Alex, Stu, Heinz, Chuck. We want to thank all the members of John Amann’s team at the Washington Systems Center in Gaithersburg, MD for hosting us. Craig Gordon and Rosemary McCutchen were especially helpful in getting us access to beta code and hardware. Thanks to the following people for their contributions to this project: Susan Barrett IBM Austin James Cammarata IB
