Fellow techies, there seems to be a significant shift in the industry from on-premises infrastructure to cloud solutions. So, which one makes more sense to you? Do you prefer one over the other in terms of cost, scalability, security, or ease of management? I already work with both, but I'd love to hear different perspectives in this discussion. What are your thoughts? Which way are we heading?
Is on-prem really the future, or is the cloud the way to go?
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In my personal experience, a combination of *on-prem* and *cloud* works best for IoT systems. For instance, in our smart home solutions where privacy is critical (like medical IoT devices), we use on-prem processing to ensure data never leaves the server. Meanwhile, for things like heating/lighting, we store data in the cloud via third-party services to easily access updates and AI analytics.
I think the balance between the two will grow in the coming years—on-prem for privacy-sensitive data (especially in enterprise IoT) and cloud/edge computing for the rest. Essentially, *hybrid* is the future; neither full on-prem nor full cloud will dominate.
Last year, while talking to a team in the finance department of one of my clients, I noticed they were under serious stress about their cloud migration. At the time, the company planned to move data accumulated over 10 years from on-prem servers to AWS, and most of the team resisted, saying, "Why change if it's already working?" I gave them a sarcastic look and joked, "Is it logical to risk 10 years of data?" only to later realize their concerns weren’t unfounded.
One of the biggest issues we faced during the migration was data integrity. TLS kept dropping during data transfers to the cloud, and some files failed CRC checks. Such problems were rare on-prem because physical connections were more stable, and debugging was easier. In the end, we had to use AWS DataSync with manual checksum verification, which took three times longer. Security was no different—the complexity of configuring IAM policies for the cloud provider was so overwhelming that half the team was stuck troubleshooting error messages, constantly asking, "Do we need to grant permissions?"
However, the benefits of the migration were tangible. Three months later, we noticed that traffic in the production environment suddenly increased by 400%—on-prem, our servers would have crashed within seconds. AWS’s auto-scaling handled this load with just a few clicks or even a simple code change. Of course, there were surprises on the cost side too: monthly payments increased by 120% in the first six months, but the company didn’t reconsider its decision given the boost in profitability and operational flexibility.
Now, I’m no longer stuck in the "cloud or on-prem" dilemma—I lean toward hybrid models. In crisis moments, I trust on-prem’s stability, while for expansions, I rely on the cloud’s flexibility. Is your story like this, or do you have a different perspective?