Scenario 3 -Low Bandwidth Replication Using Hp Vls And Hp Data Protector For Regional Data Centers - HP StoreOnce B6000 Use Manual

Scenario 3 –Low Bandwidth Replication using HP VLS and HP Data
Protector for Regional data centers.
Figure 4: Regional data centre to Main data centre End to End replication with HP VLS all under HP Data Protector control
Key Message: Scalability, Consolidation and Data Centre resilience
In this scenario the volumes of data involved at the regional data centres are significantly high and
the need for scalability paramount. HP's enterprise level Virtual Tape Libraries (VLS) are therefore
used because in terms of deduplication (the technology enabler for low bandwidth replication) the HP
VLS accelerated deduplication is able to scale much higher in terms of capacity and performance
than the HP Dynamic deduplication used on HP D2D systems.
The ROBO to regional centre solution is the same as in Scenario 2 but instead of local regional data
centre backups being done to D2D because the regional data centre volumes are > 30TB they are
now backed up to a local VLS9000 device. VLS systems also support Low Bandwidth replication and
currently support up to 4 to 1 fan-in, so we can consolidate replications from several regional data
centres in a single VLS9000 device at the main data centre. The VLS9000 uses a multi-node
architecture to ensure scalability in terms of backup performance, deduplication performance and
replication performance. Because of the higher volumes of replicated data involved however the low
bandwidth links for VLS are typically in the area of 100 Mbits/sec upwards. This solution with VLS
allows consolidation at the main data centre, the VLS9000 there is used both as a replication target
for the 4 regional data centres AND for main data centre backups as well, providing a very good
consolidated solution. Deduplication is a licensable feature on the VLS range , and low bandwidth
replication licencing is only required at the target site(one licence per node).