Replication and Virtual Tape Devices....................................................................................23
Preparing for replication.....................................................................................................23
Replication and firewalls.....................................................................................................23
Restricting access to replication sources.................................................................................23
HP Replication Manager (HP D2D4xxx Series only)....................................................................23
Replication concepts and terminology.......................................................................................24
Replication elements...........................................................................................................24
Fan OUT..........................................................................................................................25
Fan IN..............................................................................................................................26
Job concurrency.................................................................................................................29
Replication deployment strategies.............................................................................................31
Replication Licensing...............................................................................................................33
Before you start.................................................................................................................34
Seeding the Target Appliance..................................................................................................34
Seeding the Replication Target Appliance.............................................................................34
Seeding NAS shares using a USB disk.................................................................................34
Recovering a Source Appliance................................................................................................35
6 Housekeeping..........................................................................................38
What is housekeeping?...........................................................................................................38
What effect does housekeeping have on performance?...............................................................38
Why is housekeeping important?..............................................................................................38
What do I need to do?............................................................................................................38
For more information...............................................................................................................39
7 Performance............................................................................................40
Optimizing peformance...........................................................................................................40
StoreOnce key processes....................................................................................................40
How to avoid overlaps........................................................................................................40
For more information..........................................................................................................40
Balancing performance and deduplication ratios........................................................................40
To be avoided........................................................................................................................41
Glossary....................................................................................................42
About this guide..........................................................................................46
Intended audience..................................................................................................................46
Related documentation............................................................................................................46
Document conventions and symbols..........................................................................................46
HP technical support...............................................................................................................47
Customer self repair................................................................................................................47
Registering your HP StoreOnce Backup System...........................................................................47
Subscription service................................................................................................................47
HP websites...........................................................................................................................47
Documentation feedback.........................................................................................................48
Index.........................................................................................................49
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