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  • IBM DS8900F Version 9 Release 0.2

    Introduction and Planning Guide

    IBM

    SC27-9560-03

  • Note

    Before using this information and the product it supports, read the information in “Safety and environmental notices ” on page 146 and “Notices” on page 145.

    This edition applies to version 9.0.2 of IBM® DS8000® and to all subsequent releases and modifications until otherwise indicated in new editions.

    This edition replaces SC27-9560-02. © Copyright International Business Machines Corporation 2019, 2020. 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 ................................................................................................................ 18 RESTful API.......................................................................................................................................... 19 IBM Spectrum Control..........................................................................................................................19 IBM Copy Services Manager................................................................................................................ 20

    Supported web browsers.......................................................................................................................... 20

    Chapter 2. Hardware features..............................................................................23 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................................................................................................................................................. 30

    T10 DIF support................................................................................................................................... 31 Logical volumes......................................................................................................................................... 31

    Allocation, deletion, and modification of volumes..............................................................................31 LUN calculation.......................................................................................................................................... 32

    iii

  • Extended address volumes for CKD..........................................................................................................33 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.............................................................................................................................................42

    Disaster recovery through Copy Services............................................................................................50 Resource groups for Copy Services scope limiting............................................................................. 51

    Comparison of Copy Services features..................................................................................................... 52 Securing data....................................................................................................