SQL Backup process does not create differential backups but only full backups

Description

If the eWay-CRM database is large, it can cause that there is no space left on the disk.

There also can be an error while creating backups:

Cannot perform a differential backup for database, because a current database backup does not exist

Version

All versions of eWay-CRM

Difficulty

High

Resolution

There is probably another backup task on the server (e.g. NTBackup) that makes backups using VSS (Volume Shadow Copy). It may break backup chain and SQL server starts over with full backup.

For more information, go to: https://sqlbackupandftp.com/blog/cannot-perform-a-differential-backup-database-current-database-backup-exist/