HP Hitachi Universal Replicator for Mainframe User Guide (T5278-96044, November 2011)

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Contents

1 Overview of Universal Replicator for Mainframe.............................................8

Universal Replicator for Mainframe.............................................................................................8

Features..................................................................................................................................9

Benefits...................................................................................................................................9

Business Solutions...................................................................................................................10

2 About Universal Replicator for Mainframe Operations...................................11

Functionality Overview............................................................................................................11

Journal Obtain..................................................................................................................12

Journal Copy.....................................................................................................................12

Journal Restore..................................................................................................................12

Components..........................................................................................................................13

XP Storage Systems............................................................................................................14

Universal Replicator for Mainframe Software.........................................................................17

Main and Remote Control Units...........................................................................................17

LDKC...............................................................................................................................18

Remote Copy Connections..................................................................................................18

Initiator Ports and RCU Target Ports.......................................................................................18

Data Volume Pair...............................................................................................................19

Journal Volume..................................................................................................................19

The Number of Journal Volumes......................................................................................20

Specifications of Journal Volumes....................................................................................20

Restrictions on Journal Volumes.......................................................................................20

Journal Volume Areas....................................................................................................21

Journal Group...................................................................................................................21

Extended Consistency Groups.........................................................................................22

Functionality of Host...........................................................................................................24

Host I/O Time Stamp.....................................................................................................24

ERC.............................................................................................................................24

Remote Copy Operations.........................................................................................................25

Initial Copy Operation........................................................................................................25

Update Copy Operation.....................................................................................................26

Journal Group Operations...................................................................................................27

Timer Type Option.........................................................................................................27

Journal Group Operations..............................................................................................28

Read and Write I/O Operations During Universal Replicator for Mainframe Operations.............28

Secondary Data Volume Write Option..................................................................................29

Secondary Data Volume Read Option..................................................................................29

Difference Management.....................................................................................................29

Journal Processing..................................................................................................................29

Journal Processing at the Primary Storage System...................................................................30

Types of Journal............................................................................................................30

Journal Processing at the Secondary Storage System..............................................................30

Storing Journal at the Secondary Storage System...............................................................31

Selecting and Restoring Journal at the Secondary Storage System........................................31

Universal Replicator for Mainframe Delta Resync Operation.........................................................32

Journal Obtain in TrueCopy for Mainframe Synchronous Secondary Site........................................33

Switching the Master Journal Group of Universal Replicator for Mainframe.....................................34

Pair Status.............................................................................................................................36

Suspend Types...................................................................................................................40

Suspension Condition.........................................................................................................42

XP for Business Continuity Manager Software Support.................................................................43

Contents 3