User's Guide

Planning the Fabric
TCP / UDP / IP
Chapter 2
23
TCP / UDP / IP
TCP/UDP/IP applications are supported on all HF2 (fibre) hardware. Although all
HyperFabric adapter cards support HMP applications as well, our focus in this section
will be on TCP/UDP/IP HyperFabric applications.
Application Availability
All applications that use the TCP/UDP/IP stack are supported such as Oracle 9i.
Features
• OnLine Addition and Replacement (OLAR): Supported
The OLAR feature allows the replacement or addition of HyperFabric adapter cards
while the system (node) is running. For a list of systems that support OLAR, see the
HyperFabric Release Notes (B6257-90056).
For more detailed information on OLAR, including instructions for implementing
this feature, see “Online Addition and Replacement” on page 42 in this manual, as
well as Interface Card OL* Support Guide (B2355-90698).
• Event Monitoring Service (EMS): Supported
In the HyperFabric version B.11.31.01, the HyperFabric EMS monitor allows the
system administrator to separately monitor each HyperFabric adapter on every node
in the fabric, in addition to monitoring the entire HyperFabric subsystem. The
monitor can inform the user if the resource being monitored is UP or DOWN. The
administrator defines the condition to trigger a notification (usually a change in
interface status). Notification can be accomplished with a SNMP trap or by logging
into the syslog file with a choice of severity, or by email to a user defined email
address.
For more detailed information on EMS, including instructions for implementing this
feature, see “Configuring the HyperFabric EMS Monitor” on page 75 in this manual,
as well as the EMS Hardware Monitors User’s Guide (B6191-90028).
• ServiceGuard: Supported
Within a cluster, ServiceGuard groups application services (individual HP-UX
processes) into packages. In the event of a single service failure (node, network, or
other resource), EMS provides notification and ServiceGuard transfers control of the
package to another node in the cluster, allowing services to remain available with
minimal interruption.
ServiceGuard via EMS, directly monitors cluster nodes, LAN interfaces, and services
(the individual processes within an application). ServiceGuard uses a heartbeat LAN
to monitor the nodes in a cluster. It is not possible to use HyperFabric as a heartbeat
LAN. Instead a separate LAN must be used for the heartbeat.
For more detailed information on configuring ServiceGuard, see “Configuring
HyperFabric with ServiceGuard” on page 76 in this manual, as well as Managing
MC/ServiceGuard Part Number B3936-90065 March 2002 Edition.
• High Availability (HA): Supported