What should be included in a data backup plan?

The 3-2-1 backup strategy states that you should keep:

• At least THREE copies of your data;
• Backed-up data on TWO different storage types;
• At least ONE copy of the data offsite.

What does a data backup do?

Plainly put, a data backup is a copy or archive of the important information stored on your devices such as a computer, phone, or tablet, and it’s used to restore that original information in the event of a data loss.

What is data backup and its types?

Difference Between Full, Differential and Incremental Backups

	Full	Incremental
Storage Space	High	Low
Backup Speed	Slowest	Fastest
Restoration Speed	Fastest	Slowest
Media Required for Recovery	Most recent backup only	Most recent full backup & all incremental backups since full backup

What needs to be backed up?

Which files should you back up?

• Your User folder containing your documents, music, pictures, etc (C:\Users\Username\)
• Internet browser bookmarks or favourites.
• Email backup.
• Backup the backup application and the backup tasks.
• Keep a list of all installed programs.

Why is backing up a good idea?

Why Backup and Recovery is important Backup copies allow data to be restored from an earlier point in time to help the business recover from an unplanned event. Storing the copy of the data on separate medium is critical to protect against primary data loss or corruption.

What are backup methods?

Backup methods

• Unstructured.
• Full only/System imaging.
• Incremental.
• Near-CDP.
• Reverse incremental.
• Differential.
• Magnetic tape.
• Hard disk.