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What is the difference between a public and private cloud?
A private cloud is a custom, dedicated infrastructure that relies on VMware ESX to provide templated server instances. It can include a mixture of non-virtualized and virtualized resources, and is built to a custom scale and complexity to match your elastic computing needs. A private cloud opens the management of the host server and custom configurations or optimizations to the VMware ESX server to your operations staff. Private cloud affords users as many guest instances as the capacity of the dedicated infrastructure allows. Cost for private cloud is based on the number of dedicated servers managed. Public cloud standardizes the instantiation of guest virtual machines on host infrastructure that is entirely managed by uHost. You have unlimited access to the number of virtual machines you can create. Public cloud costs are consumption based, where you are only charged for the machine hours for virtual instances and the network throughput. Both can be used in combination with on-premise resources, or other resources under uHost management, including colocated resources. Both are offered with the optional service to include management by uHost.
How does uHost's cloud solutions differ from other cloud services?
uHost cloud solutions are built to suit the needs of the enterprise - including security, portability, standardization and management services. All cloud services provided by uHost are hosted in our state-of-the-art, secure data center facilities. Additionally, all internal processes and controls are rated to a Type II SAS70 certification and meet tough regulatory standards such as Sarbanes-Oxley, HIPAA and and Gramm-Leach-Bliley Act (GBLA). Unlike other cloud services, uHost Cloud is powered by the enterprise-grade VMware ESX, affording our customers the ability to template resources for better portability between on-premise resources and uHost Cloud resources. uHost Cloud users can take advantage of VMware appliances as well as standard templates provided by uHost directly. This standardization of technologies that data centers around the world are already familiar with provides an increased level of portability for resources, and better support and a minimal learning curve for enterprises considering cloud computing. Finally, uHost is the first cloud service provider to deliver full-service managed hosting for the cloud. uHost support engineers will be available to start and stop instances, monitor application behavior and availability, install and configure standard applications, as well as a variety of other standard system administration tasks.
What level of support is offered with uHost's Cloud Computing solutions?
All uHost Hosting solutions come with the three P's of hosting: Power, Pipe and Ping. uHost guarantees 100% uptime for power as well as network and monitors individual instances for general availability. Managed Hosting is available as an additional service which includes around-the-clock system administration services including starting and stopping instances, monitoring of application behavior and availability, troubleshooting, install and configure standard applications, network and security management, backups and infrastructure planning.
What types of applications can run in the cloud?
While any application that can run on a server can run in the cloud, cloud computing is not suited for all types of resources. A rule of thumb is anything that is easily added to a load balancer to distribute requests including web servers, SMTP servers, DNS servers, and some application servers is an excellent candidate for the cloud. These resources tend to be identical and horizontally scalable, which means the virtualization software that powers the cloud can easily incorporate additional services or move them and continue to maintain services levels. Servers running I/O intensive applications, like some databases, can be poor choices for the cloud due to the overhead of increasing the path from memory to real disk and back again. For write-intensive database usage, this can degrade performance. In some cases this can be minimized through proper configuration of the hypervisor, however it is always good to review the system requirements for your target resources to determine if they are eligible for virtualization into the cloud. Some applications that have specific hardware or driver requirements, such as custom video drivers that support hardware-based 3D acceleration, are not supported by VMware. Always check the hardware requirements and product support before attempting to virtualize your infrastructure.