While browsing through the web, I found this knowledge base article from Netmagic (NTT Communications) quite interesting and revealing. Have a good look at 2nd comparative table of Cloud vs VPS Features.
http://www.netmagicsolutions.com/true-cloud-versus-vps.html
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Regards,
Irfan Salam
www.linkedin.com/in/irfansalam
http://www.netmagicsolutions.com/true-cloud-versus-vps.html
Given the rising demand for Cloud, it's only natural that providers who don't have true-blue IaaS services try and label their Virtual Private Services as a Cloud offering. The truth is that while there may be minor similarities, Cloud and VPS could not be more different from each other.
Netmagic's SimpliCloud offering providers a virtual dedicated servers that are created using extremely high—quality ingredients like Cisco UCS servers, EMC Storage, Sun Storage, and Cisco networking elements. These hardware elements or 'Grids' are virtualized using VMware which is quite simply the best hypervisor available in the world today. These Virtual Machines offer truly dedicated and protected resources which usually isn't the case with a VPS (virtual private server). While most VPS offerings may guarantee a small portion of dedicated memory, there is generally no dedicated CPU allocation, disk i/o, network i/o, etc.
Another significant difference between Cloud and VPS is that VPS platforms are typically oversold. VPS providers typically virtualize a single physical box into far too many virtual private servers which translates into one physical host machine running far too many customers and this turns into a resource allocation nightmare causing server crashes or poor performance (or both). VPS security isn't as robust as a good Cloud platform because there is almost no way to achieve true tenant isolation which protects customers from each other and segregates data effectively.
With Netmagic's SimpliCloud Server you always get the full amount of allocated memory, CPU, network i/o, etc that you are paying for. In addition to also benefitting from much more comprehensive Grid security, you also benefit from a raft of additional features like real-time scalability, Elasticity, Pay-per-use, Storage, Firewalls, and Load Balancers.
The orchestration layer is the portal into a Cloud system that allows customers to provision servers, networks, and storage instantly. The Orchestration layer allows customers to manage their Cloud environment in real-time. This means they can instantly provision servers, firewalls, load balancers and storage, and commission them as pay-per-hour (Elastic) Instances, or Fixed instances. The portal will allow customers to start and stop their services in real-time and modify infrastructure when needed. Need to increase a RAM in a DB server from 4GB to 8GB? Five minutes is all it would take. None of this is possible in VPS, because a VPS has no orchestration layer or self-provisioning portal.
Netmagic's SimpliCloud offering providers a virtual dedicated servers that are created using extremely high—quality ingredients like Cisco UCS servers, EMC Storage, Sun Storage, and Cisco networking elements. These hardware elements or 'Grids' are virtualized using VMware which is quite simply the best hypervisor available in the world today. These Virtual Machines offer truly dedicated and protected resources which usually isn't the case with a VPS (virtual private server). While most VPS offerings may guarantee a small portion of dedicated memory, there is generally no dedicated CPU allocation, disk i/o, network i/o, etc.
Another significant difference between Cloud and VPS is that VPS platforms are typically oversold. VPS providers typically virtualize a single physical box into far too many virtual private servers which translates into one physical host machine running far too many customers and this turns into a resource allocation nightmare causing server crashes or poor performance (or both). VPS security isn't as robust as a good Cloud platform because there is almost no way to achieve true tenant isolation which protects customers from each other and segregates data effectively.
With Netmagic's SimpliCloud Server you always get the full amount of allocated memory, CPU, network i/o, etc that you are paying for. In addition to also benefitting from much more comprehensive Grid security, you also benefit from a raft of additional features like real-time scalability, Elasticity, Pay-per-use, Storage, Firewalls, and Load Balancers.
The orchestration layer is the portal into a Cloud system that allows customers to provision servers, networks, and storage instantly. The Orchestration layer allows customers to manage their Cloud environment in real-time. This means they can instantly provision servers, firewalls, load balancers and storage, and commission them as pay-per-hour (Elastic) Instances, or Fixed instances. The portal will allow customers to start and stop their services in real-time and modify infrastructure when needed. Need to increase a RAM in a DB server from 4GB to 8GB? Five minutes is all it would take. None of this is possible in VPS, because a VPS has no orchestration layer or self-provisioning portal.
....
Regards,
Irfan Salam
www.linkedin.com/in/irfansalam
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