![HP D2D100 User Manual Download Page 61](http://html.mh-extra.com/html/hp/d2d100/d2d100_user-manual_165447061.webp)
Remote Site
Data Center
1. Host backing up
2. Source Appliance
3. Target Appliance
4. Non-Replicating Library
5. Replication Source Library
6. Replication Target Library
Figure 35 Replication elements
Fan In, Fan Out and job concurrency
When con
fi
guring replication on complex sites, for example many Remote Sites into a Data Center, care
must be taken when planning how appliances and libraries will be replicated. The key concepts to
understand are FAN OUT, FAN IN and Concurrency.
Fan OUT
When we talk about FAN OUT, we are considering the number of replication Target Appliances that
are supported from that Source Appliance (the HP D2D Backup System that contains the libraries that
you wish to replicate).
Each library on the Source Appliance may be mapped to only one library on the Target Appliance. You
cannot split slot mappings from one Source Library across several Target Libraries.
NOTE:
Any number of slots within a Replication-Source library may be selected for replication to a Replication-Target
library. This selection is called a slot mapping collection and may be edited after initial mapping creation.
For example: If you have backed up data on the source HP D2D that relates to speci
fi
c regions, you may
want to replicate that data to regional data centers.
HP D2D400x and HP D2D41xx Series
Each HP D2D 400x or 41xx Series Source Appliance can replicate to up to four Target Appliances.
D2D Backup System HP D2D2503
61
Summary of Contents for D2D100
Page 16: ...16 About this guide ...
Page 26: ...26 Before you start ...
Page 56: ...56 Advanced installation ...
Page 86: ...86 Configuring and using replication ...
Page 150: ...150 Restore processes without replication ...
Page 156: ...156 Troubleshooting ...
Page 172: ...172 Hard disk replacement ...