DS8000 Cascading FlashCopy Design and Scenarios

A draft IBM Redpaper publication

Updated 13 November 2017

cover image

ISBN-10: 0738456438
ISBN-13: 9780738456430
IBM Form #: REDP-5463-00
(58 pages)

Authors: Werner Bauer, Bert Dufrasne, Matthew Houzenga, Dennis Robertson

Abstract

This IBM® Redpaper™ publication describes the IBM Cascading FlashCopy® support introduced with the IBM DS8000® License Machine Code (LMC) Release 8.3 (LMC 8.8.30.xx.xx, bundle version 88.30.xxx.xx) or later.

The Cascading FlashCopy support enables a FlashCopy source device to become a FlashCopy source, or a FlashCopy target device to become a FlashCopy source.

This capability provides improvements to a range of Copy Services scenarios, but essentially enables the reversal of one of several FlashCopy relationships without first withdrawing the other relationships.

This publication explores a range of use cases, explaining the improvements and benefits of the Cascading FlashCopy.

Table of contents

Chapter 1. Cascading FlashCopy concept
Chapter 2. Cascading FlashCopy use cases

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