HyperFabric Administrator's Guide (HP-UX 11i v1)

Planning the Fabric
Hyper Messaging Protocol (HMP)
Chapter 234
For more information on Transparent Local Failover while running
HMP applications, see “Configuring HMP for Transparent Local
Failover Support” on page 112.
• Dynamic Resource Utilization (DRU): Partially Supported
If you add a new HyperFabric resource (node, cable or switch) to a
cluster running an HMP application, the HyperFabric subsystem
will dynamically identify the added resource and start using it. The
same process takes place when a resource is removed from a cluster.
However, DRU is not supported if you add or remove an adapter from
a node that is running an HMP application. This is consistent with
the fact that OLAR is not supported when an HMP application is
running on HyperFabric.
• Load Balancing: Supported
When an HP 9000 HyperFabric cluster is running HMP applications,
the HyperFabric driver balances the load across all available
resources in the cluster, including nodes, adapter cards, links, and
multiple links between switches.
• Switch Management: Not Supported
Switch Management is not supported. Switch management will not
operate properly if it is enabled on a HyperFabric cluster.
• Diagnostics: Supported
You can run diagnostics to obtain information on many of the
HyperFabric components using the clic_diag, clic_probe and
clic_stat commands, as well as the Support Tools Manager (STM).
For more information on HyperFabric diagnostics, see “Running
Diagnostics” on page 149.
Configuration Parameters
This section discusses the maximum limits for HMP HyperFabric
configurations. There are numerous variables that can impact the
performance of any particular HyperFabric configuration. For more
information on specific HyperFabric configurations for HMP
applications, see “HMP Supported Configurations” on page 39.
• HyperFabric is supported on the HP 9000 series servers and
workstations only.