HP XP Continuous Access Software - Manual (Page 4)

3 Preparing for XP Continuous Access Journal Operations................................43
Requirements and Restrictions...................................................................................................43
System Requirements..........................................................................................................43
One-to-One Volume Copy Operations..................................................................................45
Logical Unit (LU) Types........................................................................................................45
Maximum Number of Pairs.............................................................................................47
Journal Groups..................................................................................................................48
Accessing XP Continuous Access Journal Primary Data Volumes and Secondary Data Volumes....50
Cache and Nonvolatile Storage (NVS).................................................................................50
Host Failover Software........................................................................................................50
Duplicate Volumes.............................................................................................................50
Installing the Hardware...........................................................................................................51
Setting up Remote Copy Connections...................................................................................52
Configuring the Primary and Secondary Storage Systems for XP Continuous Access Journal
Operations............................................................................................................................53
Using Multiple Primary and Secondary Storage Systems..............................................................55
Basic Behavior When Using Multiple Primary and Secondary Storage Systems..........................57
Hardware Configuration for Using Multiple Primary and Secondary Storage Systems..................58
Notice of the Error Suspension Between the Journal Groups.....................................................58
Transferring Business Tasks to Primary Site after Recovering from Primary Site Failures.................59
3DC Multi-target Configuration of Three XP Continuous Access Journal Sites...................................60
Setup Procedure................................................................................................................61
Restrictions about 3DC Multi-target Configuration...................................................................62
Setting of the System Option Mode 767...........................................................................62
Notes on XP Continuous Access Journal pair operations.....................................................62
Notes on Performing Delta Resync Operations...................................................................63
Transferring Business Tasks from the XP Continuous Access Journal Secondary to the Primary
Site..................................................................................................................................64
3DC Cascading Configuration of Three XP Continuous Access Journal Sites...................................65
Setup Procedure................................................................................................................66
Restrictions about 3DC cascading configuration.....................................................................67
Setting of the system option mode 767.............................................................................67
Notes on XP Continuous Access Journal pair operations.....................................................67
Notes on performing Delta Resync Operations..................................................................68
Transferring Business Tasks from the XP Continuous Access Journal Intermediate Site to the Primary
Site..................................................................................................................................69
Restoring the XP Continuous Access Journal Intermediate site and the Cascading Configuration....70
Enabling the XP Continuous Access Journal Option.....................................................................71
Interoperability with Other Products and Functions......................................................................71
LUSE................................................................................................................................75
Virtual LUN.......................................................................................................................75
Cache Residency Manager.................................................................................................76
LUN Manager...................................................................................................................76
XP Thin Provisioning...........................................................................................................76
XP Performance Control......................................................................................................76
XP Business Copy...............................................................................................................76
XP Continuous Access Synchronous (3DC Cascading Configuration).........................................82
Basic Behavior..............................................................................................................83
Hardware Configuration................................................................................................84
Setup Procedure............................................................................................................84
XP Continuous Access Synchronous (3DC Multi-Target Configuration)........................................85
Hardware Configuration................................................................................................87
Setup Procedure............................................................................................................88
4 Contents