The way your network communicates with your virtual server in the cloud has changed. It is no longer a matter of configuring an IP address and routing your information to a server interface network. Virtual server densities have transformed network configuration and design. Virtualization hosts managed by cloud backup service providers can handle more virtual servers than ever before and have network support demands that can only be managed if they resort to non-traditional network designs. So, how are virtual servers configured by cloud backup service providers?
The falling costs of hardware and increasing bandwidth availability, has made it possible to create virtual network cores without bursting budgets. Physical infrastructure can be easily consolidated into virtual infrastructure and critical systems can be placed within a small number of physical hosts with adequate redundancy, bandwidth and connectivity. Multiple core switches and redundant inter-switch links may be set up with enough ports for ensuring high availability. A layer 3 network, HSRP (Hot Swap Routing Protocol) or VRRP (Virtual Routing Redundancy Protocol) and similar protocols may be used to sustain performance, resiliency and user friendly management. If the network is software defined technologies such as VMware with Virtual eXtensible LAN may be used with modular switches that are interlinked with redundant connections to protect against possible failures.
Cloud backup and recovery service providers using virtualization have discovered that virtualization programmatically creates an agile, dynamic and organic network that can be easily scaled up. Adding virtualized computing services to standard operating procedures for cloud backup services is almost a norm. Network virtualization removes vendor lock in issues and related upgrade problems associated with it. While placing workloads anywhere in the network, virtualization programmatically continues to support the objectives of end user (customer) control over information and maintains essential security with encryption and access authentication protocols. Additionally, programmatically provisioned virtual network services can be accounted for on per port and per hour basis for ease of accounting and billing.
Consumers operating in virtual environments provided by the cloud backup service will find that they have been given a “service contract” and not a “physical server storage space”. The contract allows them to use a volume of storage located in the service provider’s data center, but may be sitting on multiple server machines. The virtual machines may be set to migrate dynamically between interconnected locations to suit the performance demands of the population of users logging in to the account from anywhere in the world.