Hitachi Universal Replicator (TM) for Mainframe User Guide: HP XP24000 Disk Array, HP XP20000 Disk Array (T5278-96044, May 2011)

ManualsBrandsHP ManualsSoftwareHP StorageWorks Continuous Access XP Media

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.......................................................................................19

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

Journal Volume..................................................................................................................20

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

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

Restrictions on Journal Volumes.......................................................................................21

Journal Volume Areas....................................................................................................22

Journal Group...................................................................................................................22

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

Functionality of Host...........................................................................................................25

Host I/O Time Stamp.....................................................................................................25

ERC.............................................................................................................................25

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

Initial Copy Operation........................................................................................................26

Update Copy Operation.....................................................................................................27

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

Timer Type Option.........................................................................................................28

Journal Group Operations..............................................................................................29

Read and Write I/O Operations During Universal Replicator for Mainframe Operations.............29

Secondary Data Volume Write Option..................................................................................30

Secondary Data Volume Read Option..................................................................................30

Difference Management.....................................................................................................30

Journal Processing..................................................................................................................30

Journal Processing at the Primary Storage System...................................................................31

Types of Journal............................................................................................................31

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

Storing Journal at the Secondary Storage System...............................................................32

Selecting and Restoring Journal at the Secondary Storage System........................................32

Universal Replicator for Mainframe Delta Resync Operation.........................................................33

Journal Obtain in TrueCopy for Mainframe Synchronous Secondary Site........................................34

Switching the Master Journal Group of Universal Replicator for Mainframe.....................................35

Pair Status.............................................................................................................................37

Suspend Types...................................................................................................................41

Contents 3