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Introduction and Planning Guide

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Introduction and Planning Guide IBM DS8900F Version 9 Introduction and Planning Guide IBM SC27-9560-00 Note Before using this information and the product it supports, read the information in “Safety and environmental notices ” on page 136 and “Notices” on page 135. This edition applies to version 9 of IBM® DS8000® and to all subsequent releases and modifications until otherwise indicated in new editions. © Copyright International Business Machines Corporation 2019. US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents About this book....................................................................................................vii Who should use this book.......................................................................................................................... vii Conventions and terminology.................................................................................................................... vii Publications and related information.........................................................................................................vii IBM Publications Center............................................................................................................................. xi Feedback..................................................................................................................................................... xi Summary of changes .......................................................................................... xiii Chapter 1. Overview.............................................................................................. 1 Machine types.............................................................................................................................................. 2 Hardware......................................................................................................................................................3 DS8910F Rack Mounted model 993......................................................................................................4 DS8910F model 994.............................................................................................................................. 6 DS8950F model 996.............................................................................................................................. 6 High Performance Flash Enclosures Gen2 pair..................................................................................... 7 I/O enclosures........................................................................................................................................ 8 Processor nodes..................................................................................................................................... 8 Management enclosure..........................................................................................................................8 Power...................................................................................................................................................... 9 Functions......................................................................................................................................................9 Logical configuration..................................................................................................................................12 Logical configuration with DS8000 Storage Management GUI.......................................................... 12 Logical configuration with DS CLI........................................................................................................ 14 RAID implementation...........................................................................................................................15 Logical subsystems.............................................................................................................................. 16 Allocation methods.............................................................................................................................. 17 Management interfaces.............................................................................................................................18 DS8000 Storage Management GUI..................................................................................................... 18 DS command-line interface ................................................................................................................ 19 RESTful API.......................................................................................................................................... 19 IBM Spectrum Control..........................................................................................................................19 IBM Copy Services Manager................................................................................................................ 20 Supported web browsers.......................................................................................................................... 20 Chapter 2. Hardware features..............................................................................23 Storage complexes.................................................................................................................................... 26 Management console.................................................................................................................................27 Hardware specifics.................................................................................................................................... 27 Storage system structure.....................................................................................................................27 Flash drives...........................................................................................................................................27 Drive maintenance policy.....................................................................................................................28 Host attachment overview................................................................................................................... 28 I/O load balancing......................................................................................................................................30 Storage consolidation................................................................................................................................ 30 Count key data........................................................................................................................................... 30 Fixed block................................................................................................................................................. 31 T10 DIF support................................................................................................................................... 31 Logical volumes......................................................................................................................................... 31 Allocation, deletion, and modification of volumes..............................................................................32 iii LUN calculation..........................................................................................................................................32 Extended address volumes for CKD..........................................................................................................34 Quick initialization......................................................................................................................................34 Chapter 3. Data management features................................................................. 35 Transparent cloud tiering.......................................................................................................................... 35 Dynamic volume expansion.......................................................................................................................36 Count key data and fixed block volume deletion prevention .................................................................. 37 Thin provisioning........................................................................................................................................37 ESE capacity controls for thin provisioning......................................................................................... 37 IBM Easy Tier............................................................................................................................................. 38 VMware vStorage API for Array Integration support ............................................................................... 40 Performance for IBM Z ..............................................................................................................................41 Copy Services.............................................................................................................................................43 Disaster recovery through Copy Services............................................................................................50 Resource groups for Copy Services scope limiting............................................................................. 51 Comparison of Copy Services features....................................................................................................
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