Contents
ix
Hitachi Simple Modular Storage Copy-on-Write SnapShot User’s Guide
Table of Contents
Document Revision Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Safety and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Product Version. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Release Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Document Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Referenced Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Document Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
Convention for Storage Capacity Values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
Getting Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
SnapShot Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Copy-on-Write SnapShot Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Hardware and Software Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Volume Pairs—P-VOLs and V-VOLs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Differential Management LUs (DM-LU). . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Consistency Group (CTG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
SnapShot Interface—Storage Navigator Modular 2 . . . . . . . . . . . . . . . . . . 1-6
Planning and Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Establishing How Often a Copy Is Made (Copy Frequency) . . . . . . . . . . . . 2-2
Selecting a Reasonable Time Between Snapshots . . . . . . . . . . . . . . . . . 2-3
Establishing How Long a Copy Is Held (Copy Lifespan) . . . . . . . . . . . . . . . 2-3
Summary of Contents for Copy-on Write SnapShot
Page 8: ...viii Preface Hitachi Simple Modular Storage Copy on Write SnapShot User s Guide ...
Page 12: ...xii Contents Hitachi Simple Modular Storage Copy on Write SnapShot User s Guide ...
Page 42: ...5 4 Configuring SnapShot Hitachi Simple Modular Storage Copy on Write SnapShot User s Guide ...
Page 58: ...8 4 Troubleshooting Hitachi Simple Modular Storage Copy on Write SnapShot User s Guide ...
Page 68: ...A 10 Operations Using CLI Hitachi Simple Modular Storage Copy on Write SnapShot User s Guide ...
Page 89: ...1 Hitachi Simple Modular Storage Copy on Write SnapShot User s Guide ...