Scenario 2 -Low Bandwidth Replication Using Hp D2D And Hp Data Protector For Up To 24 Remote Sites - HP StoreOnce B6000 Use Manual

Scenario 2 –Low Bandwidth Replication using HP D2D and HP Data
Protector for up to 24 remote sites
Figure 3 : End to End Low Bandwidth replication solution with regional centre consolidation, all under HP Data Protector
Control
Key message: Backup Consolidation & Cost effective Disaster Recovery for larger ROBO's
In this next example the volumes of data on the remote sites are much larger; 500GB perhaps, and
the customer really needs to have local restore capability. So in this scenario each remote site has a
local D2D2500 with deduplication and the D2D is using virtual tape library emulation mode. A user
capacity of 1.5TB can yield up to 30TB of backup storage with a 20:1 deduplication ratio, after
several backups have been retained over 2-3 months. If long retention is not required then the
D2D2500 can support even larger backups but retained for shorter periods. Direct restore at the
ROBO from the D2D unit is always possible because each ROBO site contains a complete Data
Protector environment of cell manager and media server and is "self-sufficient" from a restore
perspective. The local D2D2500's (sources) can also be configured to replicate only the changed
data across a low bandwidth link to the regional centre where a larger D2D4112 device resides. A
D2D4112 can support a fan-in of up to 24 D2D sources, and only requires a single licence to enable
replication. This allows major storage consolidation benefits at the regional data centre. The
replication process replicates the changes in virtual cartridges from the ROBO to the regional centre.
On a regular basis the HP data protector cell manager 1 polls the D2D4112 to detect replicated
cartridges so it can update its internal database (IDB) with their contents. This ensures that in the event
of a disaster at the ROBO the regional centre is immediately aware of which virtual tapes are
required for recovery. Finally data from the D2D4112 at the Regional centre can be easily copied to
physical tape at regular intervals using the "object copy" functionality within HP Data Protector.