Juniper JUNOS SPACE 2.0 - RELEASE NOTES, Installation Manual

Page: 17 / 64

CHAPTER 1
Installation Overview
• Junos Space Virtual Appliance Overview on page 3
• Fabric Management Overview on page 5
•
Understanding How Junos Space Uses Ethernet Interfaces eth0 and eth3 on page 9
Junos Space Virtual Appliance Overview
The Junos Space Virtual Appliance consists of preconfigured Junos Space software with
a built-in operating system and application stack that is easy to deploy, manage, and
maintain.
A Junos Space Virtual Appliance includes the same software and all the functionality
available in a Junos Space physical appliance. However, you must deploy the virtual
appliance on the VMware ESX or ESXi Server, which provides a CPU, hard disk, RAM, and
a network controller, but requires installation of an operating system and applications
to become fully functional.
Just as you can install additional physical appliances to create a fabric to provide
scalability and availability, you can deploy multiple virtual appliances to create a fabric
that provides the same scalability and high availability as a fabric of physical appliances.
You can create a fabric of JA1500 Junos Space appliances, Junos Space virtual appliances,
or a hybrid fabric of both physical and virtual appliances.
Understanding How Nodes Are Connected in a Fabric
Each Junos Space appliance (physical or virtual) that you install and configure is
represented as a single node in the fabric. You can add nodes without disrupting the
services that are running on the fabric. When you install and configure the first appliance,
Junos Space automatically creates a fabric with one node. For each additional appliance
you install and configure, you must add a node to logically represent the appliance in the
fabric. You add nodes to the fabric from the
Administration workspace in the Junos Space
user interface. Each node that you add to the fabric increases the resource pool for the
node functions to meet the scalability and availability requirements of your network. By
default, Junos Space automatically enables node functionality across the nodes in the
fabric to distribute workload. The nodes in the fabric work together to provide a virtualized
resource pool for each of the node functions: load balancer, database, and application
logic.
3 Copyright © 2010, Juniper Networks, Inc.