Cross-Cloud: The Next Evolution in Cloud Computing?

Multicloud is good. Cross-cloud is even better.

Cross-cloud is a cloud computing strategy that makes it possible to run the same workload on multiple clouds simultaneously. For instance, a cross-cloud application might have its front end hosted in one public cloud and its back end in another.

Cross-Cloud vs. Multicloud

The key difference between cross-cloud and multicloud is that cross-cloud spreads the same workload across-clouds. In contrast, multicloud simply means using more than one public cloud at the same time — with one cloud hosting some workloads and other clouds hosting other workloads.

Benefits of Cross-Cloud vs. Multicloud

This difference leads to somewhat different benefits of cross-cloud versus multicloud. The main advantage of cross-cloud is that it increases application resilience by hosting it on multiple clouds at once — so if one cloud goes down, the app will continue operating.

How to Adopt a Cross-Cloud Strategy

To date, there has been a fair amount of talk about cross-cloud, but relatively little in the way of development of tools and platforms to enable cross-cloud strategies.

There are certainly plenty of tools that work across multiple clouds — meaning they can support workloads that are hosted in, say, AWS, Azure, and Google Cloud Platform. But just because they are compatible with multiple clouds doesn't translate to a unified cloud platform and experience.

A multicloud observability tool might still collect different metrics from different clouds, for example, so you'd need to learn to interpret each cloud's metric types to use the tool effectively. Likewise, a multicloud application deployment tool might bring consistency to the process of deploying apps on different clouds, but you'd still need to provision each underlying cloud environment separately before you could deploy.

The lack of tools and platforms designed specifically for cross-cloud architectures makes it challenging at present to go cross-cloud. You could do it, but it will be an uphill battle from a technical perspective.

Cross-Cloud and the Future of Cloud Computing

Going cross-cloud could become much easier if vendors were to invest in solutions designed specifically for cross-cloud scenarios. It's plausible that vendors will want to do this because arguably, cross-cloud is one of the few areas where there remains opportunity to innovate within the world of the cloud.

After all, most cloud platforms are by now very mature, and traditional hybrid cloud and multicloud strategies are nothing new. But cross-cloud is new, and it stands to provide benefits that other cloud strategies can't. For that reason, vendors that are able to make cross-cloud strategies possible are likely to enjoy a lot of success in the market.

Conclusion

For now, it remains to be seen whether cross-cloud will just be an interesting idea that is hard to put into practice, or if we'll see a number of organizations embrace cross-cloud as the next big thing. The answer is likely to hinge on how easy cloud software vendors make it to deploy workloads across clouds.

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