Configuring ACSLS HA Ethernet Interfaces

Perform the procedures in this section to configure ACSLS HA Ethernet interfaces.

Network Interface Bonding

Linux Bonding provides a mechanism for building redundant network interfaces to guard against failures with NICs, cables, switches or other networking hardware. When configuring Bonding on your Linux host, combine two or more physical network interfaces into a single Bond. The following examples illustrate the creation of Node to Node and NFS Bonding.

Note:

Oracle recommends that you use the “balance-rr” mode for bonding which is the default mode in Oracle Linux. It provides both load balancing and fault tolerance.

If the NetworkManager service is running, you can use the nmcli command to display the state of the system's physical network interfaces. This will help you recognize the device names for each interface. You will use these device names to create the IP addresses and then add them to the networking manager.

Run the nmcli device status command to view the Ethernet ports:

# nmcli device status

DEVICE TYPE     STATE         CONNECTION
eno1   ethernet disconnected  --
eno2   ethernet disconnected  --
eno3   ethernet disconnected  --
eno4   ethernet disconnected  --
ens2f0 ethernet disconnected  --
ens2f1 ethernet disconnected  --
ens2f2 ethernet disconnected  --
ens2f3 ethernet disconnected  --

From the output above, note the four ports on each Network Interface Controller (NIC):

NIC1: (eno1,eno2,eno3,eno4)
NIC2: (ens2f0,ens2f1,ens2f2,ens2f3)

In the steps below, you build and assign the following network connections on each Node using the nmcli interface. Assign a name for each connection to identify its function.

(eno1) – Public Administration connection
(eno2) – ACSLS Library connection 1
(eno4,ens2f0) – Bonded connection for Node to Node (N2N) communication
(eno3,ens2f1) – Bonded connection for NFS communication
(ens2f2) – ACSLS Library connection 2
(ens2f3) – ACSLSHA Logical Host connection for ACSLS

The following steps illustrate the process used to build the library connections and bonds.