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If you want to skip reading this, keep in mind that you can choose:
Both options can take advantage of High Availability. |
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VoipNow is designed to maximize the cloud advantages. The cloud concept is built into the platform bottom to top. VoipNow VoipNow uses raw computing resources such as CPU power, memory, storage space (the so-called IaaS called IaaS - Infrastructure as a Service) and transforms them into a powerful Unified Communications service. The Unified Communications service is designed to be delivered as SaaS as SaaS (Software as a Service), enabling you to serve:
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The service levels you would want to enforce may vary, but the principles described in this document are universal.
Infrastructure
Infrastructure recommendations Infrastructure recommendations are made considering the type of infrastructure you are going to use.
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- You have low-level management access to the infrastructure infrastructure - you have access to server hardware to install virtualization OS on them
- The location of the infrastructure is not important - can be on premises or hosted in a third-party Data Center
- You pay for raw resources resources - this means that you are not paying for computing instances on a pay-as-you-go mode
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VoipNow 3 features advanced service distribution and cloud management. Thus, VoipNow is able to use the cloud resources in order to scale infinitely with scale infinitely with the number of customers.
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| Running a distributed system is not trivial, even if the software provides highly integrated management features. It requires advanced knowledge about system administration, security, and infrastructure monitoring. The distributed setup is not appropriate for not appropriate for all deployments, therefore we try to guide you in this chapter on how to make the right choice. |
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There is a common confusion between service distribution and high availability. The general perception is that, when a system runs on multiple computers, it is also more resilient more resilient to failure. In most cases, this is not true. In fact, service distribution statistically increases the chances of some failure.
If you are looking only for high availability, you should not embrace service distribution. Instead follow the recommendations belowthe recommendations below.
Your own infrastructure
Physical level
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- VMware vSphere - VMware vSphere High Availability (HA)
Status colour Green title BEST - Citrix XenServer - High Availability for Citrix for Citrix XenServer
- Parallels Virtuozzo - RHCS Cluster
We do not recommend virtual machine level high availability due to the management overhead this configuration imposes, especially on migrations. While it is possible to provision VoipNow this way, it is not recommended.
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Many service providers have special computing instances that ensure a better availability. In their infrastructure, these are provisioned using virtualization system level high availability, which is already a recommended way to run a highly available VoipNow system.
Capacity scaling scaling
The only reason to run a distributed system is because you need massive scaling capabilities and you still want to manage a single system. If you have to scale and you do not mind to manage multiple systems, it is possible to provision multiple VoipNow systems with each of them running on a single computer independently.
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When VoipNow is employed in applications that use intensively telephony functions such as SIP trunking, more than 1,000 concurrent calls concurrent calls can be provisioned.
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If you think that your system will have to handle more than these figures on short term and you still want a single system, it is recommended to start with a distributed setup. Otherwise, a single computer deployment will reduce your operational costs. |
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We are hoping that you have already decided what infrastructure is most suitable for you.
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If you still have trouble in making that decision, do not hesitate to ask for advice and follow VoipNow administrators in the the GetSatisfaction community. If you need more help, our expert engineers are waiting for you in the the 4PSA Support Zone. |
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