HP CloudSystem Foundation Guida Utente Pagina 73

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12 Network configuration
This chapter provides instructions for configuring the networks necessary to support the
interoperability of the CloudSystem appliances and the virtualized resources in the cloud. You will
need to use both the CloudSystem Console and the CloudSystem Portal to configure the networks.
See also How it works (page 15).
About Cloud Networking
You complete the setup of the Foundation appliance by configuring the Cloud Management Network
on the Cloud Networking pane of the Settings screen. When the settings are saved, the Foundation
appliance automatically creates the Software Defined Network (SDN) controller and three network
node appliances. Using three network nodes provides increased reliability and scalability. Each
of these appliances runs in its own virtual machine. Creating these appliances can take 5 to 15
minutes to complete.
The Cloud Networking settings control the configuration of the private network that connects the
CloudSystem Foundation base appliance to compute nodes and virtual appliances. See CloudSystem
appliances and network infrastructure (page 16).
Cloud Management Network
After you configure Cloud Networking, the SDN controller runs in the background to manage
CloudSystem Console network connections. The base appliance provides a DHCP service on the
Cloud Management Network, and the network node appliances provide DHCP IP addresses for
virtual machine deployment. The network nodes use only the Cloud Management Network you
specify. They do not have public IP addresses.
NOTE: Verify that the management hypervisor can support the additional appliances that are
created during cloud network setup.
Can I edit cloud networking after compute nodes are activated?
Cloud networking can be edited when there are no activated compute nodes. After compute nodes
are activated, changing the cloud networking configuration requires resetting your environment.
If you must change the cloud networking configuration after compute nodes are activated, first
perform the following tasks to reset your environment.
1. Back up any user data on virtual machine instances.
2. Delete virtual machine instances. See Delete instance (page 109).
3. Deactivate compute nodes. See Deactivate a compute node (page 106).
4. Then, edit the Cloud Management Network. See Edit Cloud Networking (page 73).
Edit Cloud Networking
Use this procedure to edit the Cloud Management Network.
IMPORTANT: Cloud networking is intended to be configured only once. Ensure that the cloud
networking information you specify is accurate. After compute nodes are activated, changing the
cloud networking configuration requires resetting your environment. See Can I edit cloud networking
after compute nodes are activated? (page 73)
Prerequisites
Minimum required privileges: Infrastructure Administrator
No compute nodes are activated on the network.
About Cloud Networking 73
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