Key cloud services offered by ZMir:
- Virtual Servers
- Hosted Desktops
- Hosted Applications (SharePoint, Email, SQL)
- Hosted Exchange
- Hosted VOIP
- Online Backup
Cloud computing comes in many forms and we simplify it to these main types:
Public Cloud computing is the most tradition sense of the word where resources are dynamically provisioned on a fine-grained, self-service basis over the Internet. Resources are purchased on a month-by-month requirement basis and can be changed as often as the client likes. The benefits are access and resilience. The virtual machines are located in a datacentre, and therefore all users have access to the services offered whenever and wherever they are on the globe. Also the datacentre guarantees 99.99% availability over a year, meaning little to no down time. The downside to a Public Cloud are cost and speed. Cost because datacentres are not cheap, though we can tailor the cloud offering to suit your exact needs. But the speed you attain is really dependant on your local internet connection. If you have a slow link to the internet, then you will also have a slow link to your data and Cloud Servers.
Private Clouds aim to take the benefits of a Public Cloud, but the cloud is in-house rather than online. A typical example of this is to virtualise an existing batch of servers and then run them as a cloud – allocating resources on a needs basis. So the cost issue is significantly reduced. Speed will improve since the Private Cloud no longer relies on a slow internet link for communication. Reliability depends to some extent on local resources, but would still be significantly better than a standard in-house server setup.
A hybrid cloud uses a combination of public and private clouds. The aim being to balance the cost against performance. An example would be putting Email on a Public Cloud since this doesn’t need speed but can benefit for being available anywhere in the world. Whilst running a large bandwidth hungry SQL database on a Private Cloud.