💾 Backup
| Last review date |
|---|
| 2024-04-07 |
Why?
To mitigate the single point of failure.
How?
- Try to implement Backup 3-2-1 strategy for protecting your critical data.
For the most important data, keep 3 backups on at least 2 media (SSD/HDD/USB...) and have at least 1 offsite/offline backup.
- Test your backup. You will never know whether your backup works until you are trying to recovering the data from the backup.
Why RAID is not a backup?
RAID is to provide redundancy (to achieve high uptime and availability, which is useful for business rather than home users) while backup protect against data corruption and loss (to recover data when they are being locked by ransomware). They are two different concepts and often being misunderstand.
Computer
Windows
Backup and Restore in Windows 10
MacOS
Back up your Mac with Time Machine
Linux
How to Back Up Your Linux System
Phone
Android
Back up or restore data on your Android device
iOS
How to back up your iPhone, iPad, and iPod touch How to move your iPhone or iPad backups to an external hard drive
NAS
Synology
Reference
| Link | By |
| The Tao Of Backup | Ross Williams |