HP ProLiant Cluster HA/F500 for Enterprise Virtual Array Enhanced DT Supplement Guide

Introduction
The HA/F500 for EVA Enhanced DT cluster requires two types of links: network and
storage. The first requirement is at least two network links between the servers.
MSCS uses the first network link as a dedicated private connection to pass heartbeat
and cluster configuration information between the servers. The second network link
is a public network connection that clients use to communicate with the cluster
nodes. The Enhanced DT cluster configuration can use any network card that is
supported by Microsoft operating systems. However, MSCS requires that the
dedicated private link and public link between the servers be located on different
TCP/IP subnets.
Because typical network topologies such as 100-Mb Ethernet cannot normally meet
this criterion over the longer distances used in an Enhanced DT cluster, another
topology, such as FDDI or FCIP, must be used. FDDI network cards can be used in
each server in place of the standard Ethernet network interface cards (NICs), or
standard Ethernet NICs can be used to connect to an FDDI concentrator/FCIP switch
that will connect the two sites.
The second requirement is the storage link between the storage subsystems. The
servers are connected to the local storage systems, using multimode fiber optic cable.
Each storage subsystem is connected to two Fibre Channel switches at each site in a
redundant path configuration using multimode fiber optic cable. The switches at
one site are connected to the switches at the other site by means of single-mode fiber
optic or FCIP connections.
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Writer: Bill Akers File Name: b-ch1 Introduction
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