Hitachi TrueCopy for IBM z/OS User and Reference Guide (T5211-96001, June 2007)

Contents iii
Hitachi Universal Storage Platform V TrueCopy for IBM z/OS User’s Guide
Contents
Preface...................................................................................................ix
Overview of Hitachi TrueCopy for z/OS................................................... 1-1
Hitachi TrueCopy for IBM z/OS...........................................................................1-2
Feature Highlights.............................................................................................1-3
Business Benefits ..............................................................................................1-4
Applications of TrueCopy Synchronous and TrueCopy Asynchronous .....................1-5
About TrueCopy for z/OS Operations...................................................... 2-1
TrueCopy for z/OS Components .........................................................................2-2
USP V........................................................................................................2-4
Control Units (MCUs and RCUs) ...................................................................2-7
Pairs (M-VOLs and R-VOLs) .........................................................................2-8
Remote Copy Connections...........................................................................2-9
Initiator Ports and RCU Target Ports...........................................................2-11
USP V TrueCopy Software .........................................................................2-12
Asynchronous Consistency Groups .............................................................2-13
Host I/O Time-Stamping Function ..............................................................2-13
Error Reporting Communications................................................................2-13
Remote Copy Operations .................................................................................2-14
Initial Copy Operation ...............................................................................2-15
Update Copy Operation.............................................................................2-16
Read and Write I/O Operations for TrueCopy for z/OS Volumes ....................2-17
R-VOL Read Option...................................................................................2-18
TrueCopy for z/OS Async Recordset Operations.................................................2-19
Creating and Storing Recordsets at the MCU...............................................2-19
Sending Recordsets to the RCU..................................................................2-20
Storing Recordsets at the RCU...................................................................2-20
Selecting and Settling Recordsets at the RCU..............................................2-21
Types of Recordsets..................................................................................2-22