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

Contents
1 Overview of Universal Replicator for z/OS....................................................8
Hitachi Universal Replicator for z/OS (URz).................................................................................8
Hitachi ShadowImage for z/OS and HP StorageWorks XP Business Copy Software..........................9
Hitachi TrueCopy for z/OS and HP StorageWorks XP Continuous Access Software...........................9
2 Overview of Universal Replicator for Mainframe Operations..........................10
Overview of URz Functionality..................................................................................................10
URz Components....................................................................................................................11
XP Storage Systems............................................................................................................12
Main and Remote Control Units...........................................................................................13
Journal Group...................................................................................................................13
Data Volume Pair...............................................................................................................14
Journal Volume..................................................................................................................14
The Number of Journal Volumes......................................................................................14
Specifications of Journal Volumes....................................................................................14
Restrictions on Journal Volumes.......................................................................................15
Journal Volume Areas....................................................................................................16
Remote Copy Connections..................................................................................................16
Initiator Ports and RCU Target Ports.......................................................................................17
URz Remote Console Software.............................................................................................17
Host I/O Time-Stamping Function.........................................................................................17
Error Reporting Communications (ERC).................................................................................18
Remote Copy Operations.........................................................................................................18
Initial Copy Operations......................................................................................................19
Update Copy Operation.....................................................................................................19
Read and Write I/O Operations..........................................................................................20
Secondary Data Volume Write Option..................................................................................20
Secondary Data Volume Read Option..................................................................................20
Difference Management.....................................................................................................21
Journal Processing..................................................................................................................21
Creating and Storing Journals at the Primary Storage System...................................................21
Copying Journals to the Secondary Storage System................................................................22
Storing Journal at the Secondary Storage System...................................................................22
Selecting and Restoring Journal at the Secondary Subsystem...................................................22
Types of Journals................................................................................................................23
Journal Group Operations.......................................................................................................23
Timer Type Option.............................................................................................................24
Journal Group Operations...................................................................................................24
URz Delta Resync Operation....................................................................................................24
Journal Obtain in TCz Synchronous Secondary Site................................................................25
Switching the Master Journal Group of URz...........................................................................27
URz Data Volume Pair Status....................................................................................................29
Suspend Types...................................................................................................................33
URz Suspension Condition..................................................................................................35
Business Continuity Manager Support.......................................................................................35
Command Device..............................................................................................................38
3 Requirements and Restrictions for Universal Replicator z/OS Operations..........39
System Requirements...............................................................................................................39
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