The first principle of 3-2-1 backup strategy is to keep at least 3 copies of your data, including the original copy and at least two backups. For instance, there is File-A on the hard drive of your computer. You need to create at least two backups of the File-A which can be named to File-A-backup1 and File-A-backup2.
You have to admit that the probability of data loss in multiple places is smaller than in one place. To qualify the “multiple places”, you need to create several backups first. In this principle, 3 copies are enough. Well, in the 3-2-1 backup strategy what does the 2 stand for?
Although you have created 3 copies of your important data, it would be easy to get corrupted if you put them on one place. One damaged, all damaged. As a result, it is suggested to store the two backups on 2 different storage types, such as external hard drives, USB flash drives, portable drives, SD cards, pen drives, CD/DVD discs, etc.
This action reduces the risk for data loss. Even if one of those storage devices fails, the backup on another would be readily for restoring. Then, what does the 1 stand for?
In general, offsite means remotely. However, it is safe enough if you can keep at least 1 backup stored in another place long distance, i.e. instead of onsite. Hard drive devices fail eventually, so a perfect place for offsite would be Cloud drive, NAS or network share.
Physical storages may be damaged by human error, flood, earthquake, or stolen by theft, but that is hardly appear on network drives especially the cloud storage that offered by well-known service providers. Believe it or not, they have more strict ways to ensure data’s security.
After the brief understanding of 3-2-1 backup strategy approach, you may wonder how you could make it easily. In the next part, an easy-to-use yet professional backup solution, AOMEI Backupper, would be introduced.
AOMEI Backupper is all-around and comprehensive backup software that designed for Windows operating systems only. It has different editions that apply to different operating systems (PCs or Servers) on different occasions (Single or Enterprises).
In the first place, please install AOMEI Backupper on desired computer(s). Connect the external storage device(s) in advance. Here will take File Backup with AOMEI Backupper Professional edition for example. Run the software.
1. At the main interface, click Backup and then File Backup.
2. Click Add File or Add Folder and then Browse to select the files you’d like to back up.
3. Select the destination path to store the first backup. Here will choose the E drive on the external storage. You can also copy Windows OS to flash drive.
4. Click Scheme and tick Enable Disk Space Management to select a strategy.
5. Finally, click Start Backup on the main interface to execute the task now or later.
1. To create another task, repeat the first step above. Then, select a different destination place this time. Here will select network share for example. Click Share/NAS on the left pane.
2. Select the path. Please click Add share or NAS device and then input username and password as required if you backup to network or NAS for the first time.
3. Click Scheme to set schedule backup scheme again. Finally, click Start Backup on the main interface.