Risk :

Missing differential backup may cause loss of data. In case of database fault , we won’t be able to restore the database.

Description:

A Differential backup contains all the data in a specific database or set of file groups or files since last Full backup.

A Differential backup cannot be executed without Full backup but it is smaller and faster to create than the base of a full backup and it also requires less disk space to store backup images

Normally:

Differential SQL backup should execute successfully every 24 hours.

What went wrong?

• Large backup file cause long backup execute.
• No available disk space.
• Network is not available.

What to do:

• Check backup system.
• Check server network connection