LAN Failover in OpenVMS Alpha Version 7.3-2 provides a mechanism
to protect your system against a network interface card (NIC) failure.
This mechanism provides a failover safeguard for all LAN applications by
integrating individual network adapters on the same local network
into a single virtual interface called a LAN Failover set.
The system manager defines and creates the LAN Failover set.
The failover set consists of one adapter that is to be used for
LAN traffic and one or more adapters that remain idle. If the active
adapter fails, one of the idle set members automatically takes over
with the same address, thereby allowing continuous operation.
LAN Failover determines the status of network interfaces through
a virtual driver. It determines which network adapters are functioning
and selects one to maintain the LAN traffic. All network protocols
can benefit from this type of failover.
LAN Failover enhances the existing disaster-tolerance capabilities
of OpenVMS by providing users with a high-availability solution
for all LAN applications. For more information about LAN Failover,
refer to the HP OpenVMS System Manager's Manual, the HP OpenVMS System Management Utilities Reference Manual, and the HP OpenVMS I/O User's Reference Manual.
failSAFE IP
The failSAFE IP Version 5.4 feature is another solution for
network connectivity failures available to OpenVMS Version 7.3-2
customers running TCP/IP.
failSAFE IP, which ships with HP TCP/IP Services for OpenVMS
Version 5.4 product, migrates IP addresses from a failed network
interface card (NIC) to a preconfigured NIC on the same node or
another node in the cluster. Multiple NICs can be configured with
IP addresses in the same subnet. This provides an additional benefit
by load-balancing outbound TCP connections and by providing higher
aggregate throughput. failSAFE IP can be used only in a TCP/IP environment.
For more information about failSAFE IP, refer to the TCP/IP Services
for OpenVMS documentation.