Contents
1 Overview of HP StorageWorks XP External Storage Software...........................9
XP External Storage..................................................................................................................9
Unifying Copy Operations between Different Storage Systems........................................................9
Unifying Connections from a Host to Different Storage Systems.....................................................10
2 About XP External Storage Operations........................................................12
Connecting External Storage Systems........................................................................................12
XP External Storage Components..............................................................................................13
Storage Systems and Cross-subsystem Paths...........................................................................14
Volumes and Mapping Paths...............................................................................................14
XP External Storage Operations................................................................................................15
Configuring XP External Storage...............................................................................................16
Choosing the External Port..................................................................................................16
Choosing and Mapping External Volumes.............................................................................16
Registering a Volume to an External Volume Group (ExG).......................................................17
Configuring External Volume Attributes.................................................................................17
Cross-subsystem Paths.........................................................................................................18
Path Mode...................................................................................................................19
Examples of Alternate Paths............................................................................................19
Examples of Switching I/O Execution Paths to Alternate Paths.............................................21
Connecting Mainframe Volumes..........................................................................................25
Connecting Open Systems Volumes......................................................................................26
Choosing Mapping Policy........................................................................................................26
Difference between Automatic Mapping and Manual Mapping...............................................26
Port Discovery and Volume Discovery...................................................................................26
Using a Mapped External Volume from a Connected Host...........................................................27
Storing New Data in the Mapped External Volume.................................................................27
Using Existing Data in the Mapped External Volume...............................................................28
Interoperability with other Products and Functions.......................................................................29
LUN Manager and Configuration File Loader........................................................................29
LUN Expansion (LUSE)........................................................................................................29
Virtual LVI/LUN (VLL)..........................................................................................................30
Cache Residency Manager.................................................................................................30
Performance Monitor and XP Auto LUN.................................................................................30
XP Continuous Access and Hitachi TrueCopy™ for Mainframe.................................................30
HP StorageWorks XP Continuous Access Journal Software and Hitachi Universal Replicator™ for
Mainframe........................................................................................................................30
HP StorageWorks XP Business Copy Software and Hitachi ShadowImage™ for Mainframe.........30
HP StorageWorks XP Snapshot Software...............................................................................31
HP StorageWorks XP Thin Provisioning Software....................................................................31
SNMP Agent.....................................................................................................................31
Examples of Using External Volumes with Other Products.............................................................31
XP Auto LUN Operations.....................................................................................................31
XP Continuous Access Operations........................................................................................32
XP Continuous Access Journal Operations.............................................................................33
XP Business Copy Operations..............................................................................................35
XP Snapshot Operations.....................................................................................................36
Contents 3
