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Integrating cloud technology
The choice: public versus private cloud?
Integrating new cloud technology into a company’s existing on-premise technology environments – some of which will be new, some very old – is a significant challenge and not without its risks.
Legacy technology is heterogeneous, having grown organically over a long period, and not always well-understood as most or all of the original coders and developers will have left or retired. A big question for companies is when integrating cloud with existing on-premise technology do you, add the cloud as another layer on top of legacy systems or dispense with some or all of the legacy systems and start afresh in the cloud?
Generic or vendor-specific cloud services
Compared with five years ago, the maturity of the cloud is almost unrecognisable in certain areas. Perhaps the biggest area of change has been the increase in vendor-specific cloud services, where a CSP offers a service that is quite different, and not compatible, with the services provided by other CSPs. There are big benefits for customers of committing to one vendor, such as only having to learn how to use a single technology, and
Data protection requirements
Cloud customers should know the geographic location of the CSP’s servers and each country’s data protection and other regulations. National authorities often insist that data held by domestic companies should be kept only on servers in that country. That means their CSP has to use local servers. However, that may not be enough to keep data safe from other countries’ authorities. As a result, many cloud customers are encrypting their data to keep it safe from governments as much as from
- A decision should be made on whether to use the public or private cloud and therefore automation should be a fundamental element of cloud services.
- There are two options when integrating cloud with existing on-premise technology: add the cloud as another layer on top of legacy systems; or dispense with some or all of the legacy systems and start afresh in the cloud.
- Decide whether to use generic or vendor-specific cloud
services,and consider the upsides and downsides of both.
- Cloud customers should know the geographic location of the CSP’s servers and each country’s data protection and other regulations.
- The customer should carry out a cost/benefit analysis to calculate the initial costs of migrating to the cloud, and long-term net savings.