DELL FE100 User Manual

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Configuring the System Software
6-5
both the public and private networks, the minimum number of static IP addresses 
required for a four-node clustering is nine—two for each NIC in the cluster nodes and 
one for the cluster.
Cluster-aware applications running on the cluster may require additional IP addresses. 
For example, Microsoft SQL Server requires at least one static IP address for the vir-
tual server (Microsoft SQL Server does not use the cluster's IP address). Also, each 
cluster node containing Internet Information Server (IIS) that is configured for failover 
requires a unique static IP address. 
Configuring the IP Addresses for the Private Network
A PowerEdge Cluster FE100/FL100 Datacenter Server configuration requires at least 
two NICs in each PowerEdge server (cluster node), with each NIC dedicated to one of 
the following networks:
Public network (local area network [LAN])
Private network (node-to-node communications through the cluster interconnect)
Attaching two networks to the cluster enables fault tolerance for cluster communica-
tions. If the cluster interconnects fails, the cluster can still use the public network for 
cluster communications.
The NICs installed in a cluster node must reside on different IP subnets with the 
cluster interconnect assigned to a separate IP subnet or a different network ID than 
the LAN subnet(s) used for a client connection.
Dell recommends using the static IP address assignments in Table 6-1 for the NICs 
assigned to the private network. 
NOTE: The IP address assignments for the public LAN segments may vary according 
to your network environment.
If multiple private network NICs are connected to a network switch, make sure that all 
of the NICs connected to the private network have a unique IP address. For NICs con-
nected to the private network in any other cluster connected to the same switch, you 
can continue the IP address assignment displayed in Table 6-1 by using 10.0.0.5 and 
10.0.0.6, and continuing the address assignment scheme for any additional NICs con-
nected to a private network NIC in the same cluster. 
The IP address assignments for the public network may vary according to your net-
work environment. If the IP assignments are set up correctly, all of the NIC resources 
Table 6-1.  IP Addresses for the Private Network 
Cluster Node
IP Address
Subnet Mask
Node 1
10.0.0.1
255.255.255.0
Node 2
10.0.0.2
255.255.255.0
Node 3
10.0.0.3
255.255.255.0
Node 4
10.0.0.4
255.255.255.0