HP StoreOnce Backup System Concepts and Configuration Guidelines (BB877-90913, November 2013)

• FC SAN 1 with its larger number of hosts and capacities is spread over four nodes all with
maximum storage capacity. There are at least eight streams per node to provide good
throughput performance
• All the NAS target backups have been grouped together on node 5 and 6 on 10GbE – these
could be VMWare backups which generally require a backup to NAS target. Again all NAS
targets are balanced equally across nodes 5 and 6 and, in the event of failover, performance
would be well balanced at around 50% of previous performance for the duration of the
failed-over period.
• FC SAN 2 has smaller capacity hosts connected via FC. Nodes 7 and 8 are the least loaded
hosts, so this couplet is the obvious candidate for use as the replication target.
• Keep it simple and easy to understand – that’s the key.
Figure 58 Fully load-balanced analysis of a typical implementation
Many to One configurations 105