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Data loss can happen at any time - be it due to a hard disk failure, a virus or even an accidental deletion. Without a solid backup, the worst-case scenario is that you lose your valuable files forever. But which backup strategy is the right one? How can you back up your data without spending a lot of money on expensive storage services? In this article, you will find out which backup methods are available and why the 3-2-1 rule is the best strategy for reliable data backup. I'll also show you how to use Backblaze B2 to create a free backup.
For detailed instructions and explanations of all configuration options, I recommend watching the YouTube video linked below. This video goes into detail about each individual setting, providing you with comprehensive instructions on how to set everything up correctly. Any code from the video can be found in this article, so you can use it directly without having to type it out.
Why are backups so important?
We all store countless important files on our devices every day: Documents, photos, videos, projects and much more. But many people underestimate the risk of data loss.
Here are some of the most common causes of lost data:
- Hardware errorHard disks and SSDs have a limited service life and can fail suddenly.
- Malware & RansomwareMalware can encrypt or delete your files.
- Accidental deletionOne wrong click and important data is irrevocably lost.
- Theft or lossA stolen notebook or a defective external hard disk can mean that your data is irretrievably lost.
A good backup protects you from these risks and gives you the option of restoring lost or damaged files at any time.
Data loss - more than just lost files
Data loss is not just a technical problem - it can also have a deep emotional impact. Imagine all your saved memories are suddenly gone: the vacation photos from faraway countries, the first videos of your children or the last pictures of a loved one. You can't simply buy or replace these moments - they are lost forever.
But it's not just personal memories that are at risk. A lost password can lock you out of important online accounts, documents for work or your studies can suddenly be untraceable. Imagine your laptop being stolen or your hard disk giving up the ghost - and with it, invoices, contracts or important projects are lost. The financial damage can be enormous, the emotional damage often even greater.
But the worst thing about it? Data loss hits most people completely unexpectedly. Many people only think about it when it's already too late. But with a solid backup strategy, you can avoid this risk - and save your valuable data and memories for the future.
What backup strategies are there?
There are various methods for backing up your data. Each strategy has its advantages and disadvantages. Here are the most common backup strategies:
1. complete backups
With a complete backup an exact copy of all your files is created. Every time you make a backup, everything is saved again.
✅ Advantages:
- Fast recovery of all data
- Simple principle: All files are backed up
❌ Disadvantages:
- Very high memory requirement
- Long duration for each backup
👉 When is a full backup suitable?
This method is suitable for large, rarely changed data volumes, such as archive data or one-off project backups.
2. incremental backups
With a incremental backup a complete backup is created first. Only the data that has changed since the last backup is then saved.
✅ Advantages:
- Saves storage space
- Faster backups after the first backup
❌ Disadvantages:
- Restoring takes longer as several backup statuses have to be merged.
👉 When is an incremental backup suitable?
This method is suitable for regular backups of large amounts of data, e.g. for daily or hourly backups of documents or databases.
3. differential backups
A Differential backup is a mixture of full and incremental backup. A copy of all changes since the last full backup is always saved here.
✅ Advantages:
- Fast recovery
- Storage requirements lie between full and incremental backup
❌ Disadvantages:
- More storage requirements than incremental backups
- Larger backups than with the incremental method
👉 When is a differential backup suitable?
This method is well suited for weekly backups if you need several versions in the meantime.
The best method: the 3-2-1 backup rule
The 3-2-1 rule is the most proven method for a secure backup. It is:
1️⃣ 3 copies of your data:
- The original on your PC/server
- A copy on an external medium (e.g. an external hard disk or NAS)
- A copy in an external location (e.g. in the cloud)
2️⃣ 2 different storage media:
- An external hard disk or NAS
- An additional backup on another technology (e.g. USB stick or DVD)
3️⃣ 1 copy at another location:
- If your home is affected by fire, burglary or power surges, you should store a backup outside your home (e.g. in the cloud or in another physical location).
With this strategy you are on the safe side, even if your PC, your external hard disk and even your home are affected by a disaster at the same time.
📌 You can find out more about the 3-2-1 rule here:
ionos.com
Free backups with Backblaze B2
Cloud storage is a cost-effective way of implementing the 3-2-1 rule. One of the best options is Backblaze B2.
Backups in the cloud are always encrypted to ensure maximum security. This is done using encryption methods such as AES-256, which converts your data into an unreadable code before it is transferred and stored. Even if a cloud provider had access to the files, they could not be decrypted without the appropriate key.
This encryption is carried out either directly on your device (client-side encryption) or by the cloud provider, with additional security measures such as two-factor authentication increasing protection. This keeps your data safe and secure in the cloud too.
What is Backblaze B2?
Backblaze B2 is a low-cost cloud storage solution that is ideal for backups. The best thing about it: You get 10 GB of storage space for free!
✅ Advantages of Backblaze B2:
- Free 10 GB storage space for backups
- 99.9 % Availability - Your data is always available
- Simple integration with backup tools like Duplicati or Rclone
- AES 256-bit encryption for maximum safety
📌 You can find out more about Backblaze B2 here:
backblaze.com
Which free backup tools can you use?
Here are some free tools that you can use for your backups. Each has its strengths and is suitable for different use cases:
🔹 Duplicati - Ideal for beginners looking for a user-friendly solution with cloud support. It offers a graphical interface and supports encryption and incremental backups.
👉 Perfect for: Regular backups to the cloud (e.g. Backblaze B2) with simple operation.
🔹 Rclone - A powerful command line tool for advanced users that enables cloud backups and synchronization. It supports a variety of cloud services and offers encryption options.
👉 Perfect for: Tech-savvy users who need flexible cloud synchronization and automation.
🔹 Syncthing - A decentralized solution that synchronizes files between devices without using cloud storage. Ideal for users who want to manage their data themselves.
👉 Perfect for: Privacy-conscious users who prefer backups without cloud services.
🔹 borg - A dedicated backup tool that is characterized by efficient deduplication and compression. It is particularly resource-efficient and secure.
👉 Perfect for: Large amounts of data that need to be backed up securely and in a space-saving manner.
🔹 Restic - A modern, cross-platform open source tool with a focus on security and simplicity. It supports encryption and backups to the cloud or local storage.
👉 Perfect for: Users who are looking for a simple but secure solution for regular backups.
🔹 Copia - Similar to Restic, but offers a graphical user interface (GUI) and is therefore more user-friendly. It supports cloud and local backups.
👉 Perfect for: Users who prefer a modern, cross-platform solution with a GUI.
🔹 Veeam - A professional backup solution that is particularly suitable for physical servers, cloud environments and SaaS applications. The free version offers basic functions.
👉 Perfect for: Companies or advanced users who require a comprehensive backup solution.
Decision support: Which tool is right for you?
- For beginners: Duplicati or Kopia - user-friendly with a graphical interface.
- For advanced users: Rclone or Restic - flexible and powerful, but with a bit of a learning curve.
- For privacy fans: Syncthing - decentralized and without the cloud.
- For large amounts of data: borg - efficient and space-saving.
- For companies: Veeam - professional and comprehensive.
These tools help you to manage your backups automatically and securely - whether locally, in the cloud or hybrid. Choose the tool that best suits your needs and start backing up your data today! 💾🔐
Comparison of the largest cloud storage providers
Before you decide on a cloud service, it's worth taking a look at the most important providers. Each has different strengths - be it price, speed, user-friendliness or integrations. You can find a clear comparison of the most popular cloud storage providers here:
Comparison table of all major cloud storage providers:
https://comparisontabl.es/cloud-storage/
This overview shows you at a glance:
- Cost per GB
- Monthly basic fees
- API support
- Upload/download speeds
- Data protection and encryption variants
- Available backup integrations
Why is this important?
Because not every provider has the same target group. Some focus on high security, others on speed or low prices. Backblaze B2 scores above all with its excellent price-performance ratio, while providers such as Google Drive or OneDrive are intended more for everyday document management.
If you really want to back up large amounts of data - photo collections, videos, projects, server data - cloud storage such as Backblaze B2, Wasabi or AWS S3 is much more flexible and professional than classic consumer services.
Which cloud provider suits which type of user?
Here is a little decision-making aid so that you can categorize the comparison table more quickly:
| User type | Suitable provider | Why? |
|---|---|---|
| Beginner | Google Drive, Dropbox | Very easy to use, good apps |
| Power user / developer | Backblaze B2, Wasabi, AWS S3 | API support, automation, favorable TB prices |
| Photographers / Videographers | Backblaze B2, pCloud | Store large amounts of data at low cost |
| The company | AWS S3, Azure, Wasabi, Veeam Cloud Connect | Scalable, high availability, compliance |
| Data protection fans | Tresorit, Sync.com | Zero-knowledge encryption, EU or CH hosting |
You can quickly see which solution suits your needs - regardless of whether you want to back up 5 GB or 50 TB.
Common backup mistakes - and how to avoid them
Even if you have a backup, it doesn't automatically mean you're protected. Here are the biggest mistakes that many users make:
❌ 1. backups are not performed regularly
A backup is only as good as its last status. Automate your backups - daily or at least weekly.
❌ 2. the backup hard disk is right next to the PC
In the event of theft or fire, the second copy is useless. That's why the 3-2-1 rule is so important!
❌ 3. no encryption
Encryption is mandatory, especially for cloud services! Many backup tools offer:
✔ AES-256
Password protection
✔ Zero-knowledge encryption
❌ 4. no recovery tests
What many people underestimate: Some backups cannot be fully restored later.
Test a recovery at least twice a year!
❌ 5. back up everything - but not the important things
Not every folder needs a backup. Concentrate on:
- Documents
- Photos/Videos
- Projects
- Passwords (e.g. KeePass database)
- Configuration files of tools
YouTube video implementation
Bonus: Backup of the most important system data (for fast recovery)
If you need to completely reset your system, you can save time by backing up the following:
- Browser data (favorites, passwords, extensions)
- App configurations
- SSH keys
- License key
- VS Code Settings
- Personal scripts
- Layouts of programs (e.g. OBS Studio)
This not only protects you against data loss, but also against system failures.
Conclusion - Secure your data - for free!
Data loss can happen at any time - be prepared! The 3-2-1 rule is the best strategy for keeping your data safe. With free cloud storage like Backblaze B2 you can create an external copy of your most important data - at no extra cost.
- Implement the 3-2-1 backup rule!
- Use free tools for automatic backups!
- Back up your data with Backblaze B2 - free of charge up to 10 GB!
Now is the best time to set up your backups! 💾🔐
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