Hitachi G200 - Table of Contents

Contents
Preface.................................................................................................. ix
Intended audience..................................................................................................... x
Product version..........................................................................................................x
Release notes............................................................................................................ x
Changes in this revision..............................................................................................x
Referenced documents.............................................................................................. xi
Document conventions.............................................................................................. xi
Convention for storage capacity values......................................................................xiii
Accessing product documentation............................................................................. xiii
Getting help............................................................................................................ xiv
Comments.............................................................................................................. xiv
1 TrueCopy overview............................................................................... 1-1
Hitachi TrueCopy® ................................................................................................ 1-2
System components ...............................................................................................1-2
Storage systems .................................................................................................... 1-4
Volume pairs ......................................................................................................... 1-4
Data path ..............................................................................................................1-5
Consistency groups ................................................................................................1-5
Interfaces ............................................................................................................. 1-5
Failover software ................................................................................................... 1-6
Overview of initial, update copy operations ..............................................................1-6
Initial copy ......................................................................................................1-7
Update copy ....................................................................................................1-7
Pair status..............................................................................................................1-8
2 Requirements and specifications............................................................ 2-1
System requirements and specifications....................................................................2-2
3 Planning for TrueCopy...........................................................................3-1
Storage system preparation.....................................................................................3-2
Cache, additional control memory requirements..................................................3-2
Workflow for adding and removing cache memory.....................................3-3
Workflow for adding control memory........................................................ 3-3
iii
Hitachi TrueCopy® User Guide for Hitachi Virtual Storage Platform Gx00 and Fx00 Models