After learning about On-Premises, Private Cloud, and Public Cloud, I thought every company would simply pick one option and stick with it.
But real businesses are rarely that simple.
A Real-World Scenario
Let’s imagine a hospital.
The hospital stores patient records containing highly sensitive information.
Because of regulations and privacy concerns, they don’t want all that data sitting in a public cloud.
At the same time, the hospital wants a mobile app where patients can book appointments online.
The app needs to handle thousands of users and should be available 24/7.
Now the hospital has a challenge:
- Keeping everything on-premises is expensive and difficult to scale.
- Moving everything to the public cloud may not satisfy regulatory requirements.
So what do they do?
They use both.
Sensitive patient records stay in their private environment, while the appointment booking application runs on Google Cloud.
This combination is called a Hybrid Cloud.
Hybrid Cloud = Best of Both Worlds
Think of it like working from home and from the office.
Some tasks are better done in the office.
Some tasks are easier from home.
Instead of choosing one location forever, you use both depending on what makes sense.
Hybrid cloud works the same way.
A company uses its own infrastructure for some workloads and public cloud services for others.
Why Companies Use Hybrid Cloud
- Protect sensitive information
- Continue using existing infrastructure
- Expand capacity when demand increases
- Avoid spending huge amounts on new hardware
Easy Formula to Remember
Private Cloud + Public Cloud = Hybrid Cloud
Then What Is Multicloud?
Now imagine you’re ordering food online.
Sometimes you use Swiggy.
Sometimes you use Zomato.
Not because one is bad, but because each has different offers, restaurants, and benefits.
Companies think similarly about cloud providers.
Google Cloud might be excellent for one workload.
Another cloud provider might have a service they prefer for another workload.
Instead of relying on one provider, they use multiple providers together.
This approach is called Multicloud.
Example
A company might use:
- Google Cloud for data analytics
- Another cloud provider for backup systems
Both are public cloud providers.
Using more than one public cloud provider is called Multicloud.
Hybrid vs Multicloud
This confused me at first.
The easiest way I found to remember it is:
Hybrid Cloud
Mixing different environments.
Examples:
- On-Premises + Google Cloud
- Private Cloud + Public Cloud
Multicloud
Using multiple public cloud providers.
Example:
- Google Cloud + Another Public Cloud Provider
Quick Comparison
| Hybrid Cloud | Multicloud |
|---|---|
| Combines different environments | Uses multiple cloud providers |
| Example: On-Premises + Google Cloud | Example: Google Cloud + Another Public Cloud Provider |
| Focuses on integration | Focuses on flexibility and choice |
Can a Company Use Both?
Absolutely.
Imagine a large bank.
They have:
- Their own data center
- Google Cloud
- Another public cloud provider
Now they’re using:
- Hybrid Cloud (because they use on-premises and cloud)
- Multicloud (because they use multiple cloud providers)
At the same time.
Why Not Depend on Just One Provider?
Imagine all your savings are in a single wallet.
If you lose that wallet, you have a problem.
Companies think the same way.
By spreading applications across different environments, they reduce risk.
Benefits Include
- Better reliability
- More flexibility
- Access to specialized tools
- Reduced dependency on a single provider
Open Standards vs Open Source
While learning about cloud strategies, I also came across two terms that sound similar but mean different things.
Open Standards
Think of mobile phone chargers.
Imagine if every phone brand used a completely different charging port.
Life would be frustrating.
Standards exist so different products can work together.
Open standards are agreed rules that allow technologies from different vendors to communicate and operate smoothly.
Open Source
Open source means the source code is publicly available.
Developers can inspect it, modify it, and contribute improvements.
A simple example is a community garden.
Everyone can see it, help maintain it, and improve it together.
Quick Knowledge Check 🧠
Question 1
A company keeps customer data in its own data center but runs its website on Google Cloud.
Answer: Hybrid Cloud
Question 2
A company uses Google Cloud and another public cloud provider for different applications.
Answer: Multicloud
Question 3
A company uses its own data center, Google Cloud, and another public cloud provider.
Answer: Both Hybrid Cloud and Multicloud
Easy Way to Remember
🏥 Hospital Example = Hybrid Cloud
Sensitive data stays private, while public-facing applications run in the cloud.
📱 Swiggy + Zomato = Multicloud
Using multiple providers because each offers different advantages.
My Biggest Takeaway
Initially, I thought cloud adoption meant moving everything to the cloud.
Today’s lesson taught me that organizations rarely choose a single approach.
Instead, they mix environments based on:
- Cost
- Security
- Regulations
- Flexibility
- Business needs
The cloud isn’t about choosing one solution—it’s about choosing the right combination of solutions.
