HP StorageWorks Enterprise File Services WAN Accelerator - Manual (Page 69)

HP S TORAGE W ORKS EFS WAN A CCELERATOR M ANAGEMENT C ONSOLE U SER G UIDE 69
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Serial clustering operates in a spill-over mode where TCP connections beyond the
capacity limit of one of the HP EFS WAN Accelerators in the cluster are automatically
handled by the next HP EFS WAN Accelerator in a cluster. If one HP EFS WAN
Accelerator fails, the next HP EFS WAN Accelerator automatically take over.
Figure 2-25. Serial Cluster in a Data Center
You specify peering rules that when the HP EFS WAN Accelerator receives an auto-
discovery probe it is passed through, accepted, or processed normally based on the
sender of the probe, the client IP address and subnet, the server IP address and subnet,
or the server port.
In a serial cluster when an HP EFS WAN Accelerator reaches its capacity limit, it stops
intercepting new connections and passes them through to the next HP EFS WAN
Accelerator that will intercept them. This process continues until there are no more HP
EFS WAN Accelerators available in the cluster.
In serial cluster deployments:
‹ The peering rules table is a ordered list of rules and the first rule that matches the
rule is applied.
‹ To avoid interceptions on inner connections created by other HP EFS WAN
Accelerators in the same cluster, in-path rules are specified to pass-through
connections originating from those HP EFS WAN Accelerators.
For detailed information, see the HP StorageWorks Enterprise File Services WAN
Accelerator Deployment Guide.
To set peering rules 1. Click the Setup tab to display the Setup: Optimization Service - General Settings
page.
2. Click Advanced Networking in the left menu to display the Setup: Advanced
Networking - Connection Pooling page.