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Seeding and why it is required ........................................................................................................ 55
Seeding methods in more detail ....................................................................................................... 57
Replication and other D2D operations .............................................................................................. 65
Replication Monitoring.................................................................................................................... 67
Housekeeping monitoring and control .................................................................................................. 71
Terminology .................................................................................................................................. 71
Tape Offload .................................................................................................................................... 75
Terminology .................................................................................................................................. 75
When is Tape Offload Required? ..................................................................................................... 76
Key performance factors in Tape Offload performance ....................................................................... 78
Summary of Best Practices ............................................................................................................... 78
Appendix A Key reference information ................................................................................................ 80
D2D Generation 2 products, software 2.1.00 ................................................................................... 81
D2D Generation 1 products, software 1.1.00 ................................................................................... 82
Appendix B – Fully Worked Example ................................................................................................... 83
Hardware and site configuration ...................................................................................................... 83
Backup requirements specification .................................................................................................... 84
Using the HP StorageWorks Backup sizing tool ................................................................................. 85
Configure D2D source devices and replication target configuration ..................................................... 98
Map out the interaction of backup, housekeeping and replication for sources and target ...................... 100
Tune the solution using replication windows and housekeeping windows ............................................ 102
Worked example – backup, replication and housekeeping overlaps .................................................. 103
Avoiding bad practices................................................................................................................. 107
Appendix C HP Data Protector Tape Offload – Worked Examples........................................................ 108
A note on terminology .................................................................................................................. 108
To perform a simple media copy .................................................................................................... 110
To perform an interactive object copy, VTL ...................................................................................... 111
To perform an interactive object copy, D2D NAS share .................................................................... 114
Appendix D Making use of improved D2D performance in 2.1.01 and 1.1.01 software ........................ 116
Overview .................................................................................................................................... 116
Replication for Virtual Device Migration .......................................................................................... 117
Self Replication for Virtual Device Migration .................................................................................... 119
Replication device self replication migration .................................................................................... 121
Configuring Self Migration from the D2D Web Management Interface ............................................... 123
Index .............................................................................................................................................. 129
For more information ........................................................................................................................ 131