HP D2D100, User Manual

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6. Connect to the Data Center appliance and library via iSCSI from the host at the remote site.
7. Import the cartridges into the backup application and recover the data over the WAN.
8. At this point there is no HP D2D Source Appliance at the remote site. If one is installed at
a later date, you can reverse recover the data and con fi gure replication, as described in
“ Reverse replication, source lost and mapping deleted ” on page 77.
Promoting a Target Library using colocation
D2D2500
Remote Site
Host Host
D2D2500
Data Center
Figure 49 Recovery by relocating the Target Appliance
In this recovery model, a disaster has occurred at the remote site resulting in the loss of both the host
servers and the D2D system. New server hardware has been purchased and installed and the admin
now wants to recover data to the server. The admin decides to move the D2D appliance that was in the
Data Center to the remote of fi ce (maybe only temporarily) in order to recover the server data.
Before the failure a mapping existed between a Source Library on the remote site D2D and a Target
Library on the Data Centre D2D. After the failure the mapping still exists but the Source Library is missing.
The Target Library on the Data Centre D2D is still in target library mode, it has not had its mappings
removed.
IMPORTANT:
This con fi guration is possible in only limited situations because it will break any other backups or replications
to the Data Center appliance. In a simple Active-Passive scenario, however, this may be a very good model.
D2D Backup System HP D2D2503
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