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Contents

Notes, Cautions, and Warnings...................................................................................................2

1 Introduction to the DR Series System......................................................................................9

About the DR Series System GUI Documentation....................................................................................................9

Other Information You May Need.............................................................................................................................9

Source Code Availability.........................................................................................................................................10

2 Understanding the DR Series System....................................................................................11

About the DR Series System...................................................................................................................................12

Drive and Available Physical Capacities................................................................................................................12

Internal Drive Capacity.....................................................................................................................................13

External Drive Capacity ...................................................................................................................................13

Data Storage Terminology and Concepts...............................................................................................................13

Data Deduplication and Compression..............................................................................................................16

Replication........................................................................................................................................................17

Reverse Replication.........................................................................................................................................18

Reverse Replication: Alternate Method...........................................................................................................19

Supported File System Protocols............................................................................................................................19

NFS...................................................................................................................................................................19

CIFS..................................................................................................................................................................20

CIFS ACL Support.............................................................................................................................................20

Access Control List Support in Containers......................................................................................................20

Existing Containers (Pre–1.1 Release).............................................................................................................21

Unix Permissions Guidelines............................................................................................................................22

Windows Permissions Guidelines....................................................................................................................22

OpenStorage Technology (OST): DR Series System...............................................................................................23

OpenStorage Technology (OST) API................................................................................................................24

Software Components and Operational Guidelines.........................................................................................25

DR Series System and Data Operations.................................................................................................................26

DR Series Expansion Shelf...............................................................................................................................27

Understanding About Adding a DR Series Expansion Shelf............................................................................28

Supported Software and Hardware........................................................................................................................28

Terminal Emulation Applications......................................................................................................................28

DR Series — Expansion Shelf Cabling...................................................................................................................29

Adding a DR Series System Expansion Shelf.........................................................................................................30

3 Setting Up the DR Series System...........................................................................................33