Disaster recovery
- Git course
- Expert
- Lesson 27/32
- 4 min
Learn the disaster recovery flow.
What is disaster recovery?
Disaster recovery is a planned process for restoring a project after data loss or system failure. Repository backups, remote copies, and restoration procedures are parts of this plan.
Working repository
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Create backup
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Restore after failureRelying on only one Git remote may not be sufficient. Critical projects should have independent and regular backups.
Backing up and restoring a Git repository
git clone --mirror creates a bare mirror copy of a repository, including its branches and tags. This copy can be stored in a separate location for backup purposes.
git clone --mirror https://example.com/project.git project-backup.git
git clone project-backup.git recovered-projectBefore restoring, you should check the backup's integrity and freshness. After restoration, verify remote addresses and access permissions as well.
Practice Restore a repository from a backup
Create a new working repository named recovered-project from the mirror backup named project-backup.git. Then change into the new repository directory, list its branches, and print a completion message.
Starter code
# Ayna yedeğinden çalışma deposu oluştur
# Dalları listele ve tamamlanma mesajı yazdırSample solution
git clone project-backup.git recovered-project
cd recovered-project
git branch -a
echo "Depo geri yükleme adımı tamamlandı."Expected output
Depo geri yükleme adımı tamamlandı.
Questions and answers
Review the lesson questions together with their answers. To test yourself, solve the lesson interactively.
1 You want to recover both commit history and repository files after a server failure. Which backup approach is more suitable?
- Copy only temporary files from the working directory
- Rely on a remote repository without backups
- Save only the latest commit message
- Back up the repository regularly to an independent location Correct answer
Explanation: Regular repository backups stored independently provide a recovery option in situations such as server failure.
2 Complete the mirror backup command
git clone ____ https://example.com/project.git project-backup.gitgit clone --mirror https://example.com/project.git project-backup.gitExplanation: The <code>--mirror</code> option copies the remote repository's branches and references as a mirror.
3 Disaster recovery components
| Term | Meaning |
|---|---|
Disaster recovery |
Plan to restore a system after failure |
Backup |
Creating a separate copy of data |
Restore |
Recovering data from a backup |
Integrity check |
Verifying backup data consistency |