can be built , developed and maintained by a company ’ s own IT teams or delivered by external providers . Private clouds as their name implies address the drawback of the public cloud issue with privacy .
A hybrid cloud model is considered the best of both public and private architectures . The hybrid approach allows private and public cloud infrastructures to interact within a connected but separate system . This is ideal for organisations that handle sensitive information and PII , allowing them to store their critical data in private clouds and while keeping less sensitive data in public clouds . With a hybrid cloud architecture , organisations can maintain their private environments while accessing all the benefits of public cloud services for other computing tasks and storage .
Cloud infrastructures are highly agile and flexible because they are selfmanaged and allow users to spin up new services
Three types of cloud migration
There are three main types of cloud migration :
• On-premises to the cloud
• Cloud-to-cloud migration
• Reverse cloud migration
When moving data that is being hosted by on-premises servers to the cloud , you will be typically using a technique that ’ s called ‘ lift and shift ’. This is the transfer ( or ‘ rehosting ’) of an exact copy of your current environment without making extensive changes .
This is the fastest and simplest way for an organisation to start taking advantage of the cloud . As for moving data between clouds , say public and private ones , it will be done most likely because you want to keep it more secure . On the rare occasion where data becomes no longer important or obsolete , a reverse cloud migration may be employed to free up space and archive it on a local storage device .
To save time and expenses , cloud migration experts recommend some procedural tasks be performed before migrating data . The tasks include doing an audit and deciding what data and
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