Hitachi TrueCopy (TM) for Mainframe User Guide: HP XP24000 Disk Array, HP XP20000 Disk Array (T5211-96014, May 2011)

Contents
1 Overview of TrueCopy for Mainframe...........................................................8
TrueCopy for Mainframe............................................................................................................8
Feature Highlights.....................................................................................................................8
Business Benefits.......................................................................................................................9
Applications of TrueCopy Synchronous and TrueCopy Asynchronous...............................................9
2 About TrueCopy for Mainframe Operations.................................................10
TrueCopy for Mainframe Components.......................................................................................10
Storage Systems.................................................................................................................11
Control Units (MCUs and RCUs)...........................................................................................14
Pairs (M-VOLs and R-VOLs)..................................................................................................14
Remote Copy Connections..................................................................................................15
Initiator Ports and RCU Target Ports.......................................................................................16
TrueCopy Software.............................................................................................................16
TrueCopy Open/MF Consistency Groups..............................................................................17
Asynchronous Consistency Groups.......................................................................................17
Host I/O Time-Stamping Function.........................................................................................18
Error Reporting Communications..........................................................................................18
Remote Copy Operations.........................................................................................................18
Initial Copy Operation........................................................................................................19
Update Copy Operation.....................................................................................................19
Read and Write I/O Operations for TrueCopy for Mainframe Volumes.....................................20
R-VOL Read Option............................................................................................................21
TrueCopy for Mainframe Async Recordset Operations.................................................................21
Creating and Storing Recordsets at the MCU.........................................................................22
Sending Recordsets to the RCU............................................................................................22
Storing Recordsets at the RCU..............................................................................................22
Selecting and Settling Recordsets at the RCU.........................................................................22
Types of Recordsets............................................................................................................23
Inflow Control of Recordsets................................................................................................23
Graduated Delay Sidefile Management................................................................................25
TrueCopy Open/MF Consistency Group Operations...................................................................26
TrueCopy for Mainframe Async Consistency Group Operations....................................................31
Group Options..................................................................................................................32
Group Consistency Time.....................................................................................................32
Group Operations.............................................................................................................33
Pair Status.............................................................................................................................34
Suspended Pairs................................................................................................................35
Suspended TrueCopy for Mainframe Async Pairs....................................................................38
Business Continuity Manager Support.......................................................................................39
Command Device..............................................................................................................44
F/M = FB Message Output Control Option when Operating R-VOLs.........................................44
PPRC Support.........................................................................................................................44
P/DAS Support..................................................................................................................46
GDPS Support...................................................................................................................46
RMF PPRC Link-path Statistical Information Support.................................................................47
TPC-R Cooperation Support.................................................................................................49
Interoperability with Other Products and Functions......................................................................50
ShadowImage for Mainframe..............................................................................................54
Universal Replicator for Mainframe.......................................................................................58
Contents 3