Hitachi MP-96RD625-01 manual Preparing for Universal Replicator z/OS Operations

Update Copy Operation	2-20
Journal Group Operations	2-20
Timer Type Option	2-21
Journal Group Operations	2-21
Read and Write I/O Operations During URz Operations	2-22
Secondary Data Volume Write Option	2-23
Secondary Data Volume Read Option	2-23
Difference Management	2-23
Journal Processing	2-24
Journal Processing at the Primary Storage System	2-24
Types of Journal	2-25
Journal Processing at the Secondary Storage System	2-25
Storing Journal at the Secondary Storage System	2-25
Selecting and Restoring Journal at the Secondary Storage System	2-26
URz Delta Resync Operation	2-28
Journal Obtain in TCz Synchronous Secondary Site	2-28
Switching the Master Journal Group of URz	2-30
Pair Status	2-33
Suspend Types	2-36
Suspension Condition	2-38
Business Continuity Manager Support	2-39
Command Device	2-42

Preparing for Universal Replicator z/OS Operations		3-1
	Requirements and Restrictions for URz	3-2
	System Requirements	3-2
	Disk Track Format	3-4
	One-to-One Volume Copy Operations	3-4
	Duplicate VOLSER (Volume Serial Number)	3-5
	Volume Types	3-5
	The Maximum Number of Pairs	3-8
	Journal Group	3-11
	Accessing URz Primary Data Volume and Secondary Data Volume	3-12
	Cache and Nonvolatile Storage (NVS)	3-12
	Duplicate Volumes	3-12
	Installing the Hardware	3-13
	Setting up Remote Copy Connections	3-14
	Enabling the URz Option(s)	3-16
	Using Multiple Primary and Secondary Storage Systems	3-16
	Basic Behavior When Using Multiple Primary and Secondary Storage Systems3-18
	Hardware Configuration for Multiple Primary and Secondary Storage Systems3-20
	Connections Between Secondary Storage Systems	3-21
vi	Contents
	Hitachi Universal Replicator for IBM /OS User’s Guide