HP StorageWorks XP Remote Web Console Software - Manual (Page 3)

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