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IBM DS8000 Transparent Cloud Tiering: DS8000 Release 9.3

An IBM Redbooks publication

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Published on 20 December 2022, updated 11 August 2023

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ISBN-10: 0738460915
ISBN-13: 9780738460918
IBM Form #: SG24-8381-05


Authors: Alexander Warmuth and Nielson “Nino” de Carvalho

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    Abstract

    This IBM® Redbooks® publication gives a broad understanding of storage clouds and the initial functions that were introduced for mainframe data to be transferred to cloud storage

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    IBM Data Facility Storage Management Subsystem (DFSMS) and the IBM DS8000® added functions to provide elements of serverless data movement, and for IBM z/OS® to communicate with a storage cloud. The function is known as Transparent Cloud Tiering (TCT) and is composed of the following key elements:

    • A gateway in the DS8000, which allows the movement of data to and from Object Storage by using a network connection.
    • DFSMShsm enhancements to support Migrate and Recall functions to and from the Object Storage. Other commands were enhanced to monitor and report on the new functions.
    • DFSMShsm uses the Web Enablement toolkit for z/OS to create and access the metadata for specific clouds, containers, and objects.
    • DFSMSdss enhancements to provide some basic backup and restore functions to and from the cloud. The IBM TS7700 can also be set up to act as though it is cloud storage from the DS8000 perspective.

    This IBM Redbooks publication is divided into the following parts:

    • Part 1 provides you with an introduction to clouds. It provides basic knowledge and terminology.
    • Part 2 shows you how we set up the TCT in a controlled laboratory and how the new functions work. We provide points to consider to help you set up your storage cloud, including network connectivity, and integrate it into your operational environment.
    • Part 3 shows you how we used the new functions to communicate with the cloud and to send data to it and retrieve data from it..

    This edition applies to DS8900F Release 9.3 and covers more recent features of TCT such as multi-cloud connections, along with extra advice for high availability cloud connectivity and DFSMShsm improvements.

    Table of Contents

    Part 1. Introducing Transparent Cloud Tiering and cloud

    Chapter 1. Storage tiering history and the value of Transparent Cloud Tiering

    Chapter 2. Cloud overview

    Chapter 3. Transparent Cloud Tiering

    Part 2. Setting up Transparent Cloud Tiering

    Chapter 4. Requirements

    Chapter 5. Connectivity and network setup for Transparent Cloud Tiering

    Chapter 6. Configuring the IBM DS8000 for Transparent Cloud Tiering

    Chapter 7. Configuring Data Facility Storage Management Subsystem for Transparent Cloud Tiering

    Chapter 8. Managing cloud credentials

    Part 3. Operation and usage

    Chapter 9. DFSMShsm

    Chapter 10. Using automatic migration

    Chapter 11. Operational integration and reporting considerations

    Chapter 12. DFSMShsm full volume dump

    Chapter 13. Data Facility Storage Management Subsystem full volume dump

    Appendix A. DFSMShsm enhancements for Transparent Cloud Tiering

    Appendix B. Exporting the IBM DS8000 certificate chain

    Appendix C. Replacing communication certificates in the IBM DS8900F

     

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