Storage System Overview
System Administration Manual
5
structure is divided into two discrete components:
❑
A public data network
(i.e. the enterprise network)
. The public management interface
from the BlueArc Storage System perspective consists of the first Ethernet port on the SMU
(the public Ethernet interface). In addition, management access can be enabled on
individual Gigabit Ethernet (GE) interfaces on Titan.
❑
A private (sideband) management network
. The private management network is a small
network used to connect Titan’s auxiliary devices and is isolated from the main network
through the SMU using
Network Address Translation
(NAT) technology. It consists of the
private management interface of the SMU, the 10/100 Mbps Ethernet management interface
on the server, and all the Ethernet managed devices that comprise the Titan Storage
Subsystem.
The private management network manages the storage subsystem, including auxiliary devices.
Devices on this network are only accessible from the public (data) network through the SMU,
which provides NAT, NTP, and email relay services. The SMU has two 10/100/1000 Mbps
Ethernet interfaces. The first interface (eth0) connects to the public (data) network, while the
second interface (eth1) resides on the private management network.
The diagram below shows how NAT isolates the private management network. The example
shows a device with the IP address
192.0.2.13:80
accessible through HTTP, and a second
device with IP address
192.0.2.14:443
accessible through HTTPS. These devices appear on the
enterprise network as
10.1.1.13:28013
and
10.1.1.13:28014
.
