We have a 2008R2 SQL Server with scheduled backups on one of the databases that is failing. This database has a full backup scheduled and run at 6:00AM. Then, each hour starting at 8:00AM a differential backup is performed. All works fine until the 1:00PM differential backup which fails and each backup after that fails for the rest of the day. The failure information is shown below. Can anyone tell me why it would just fail like that? Thanks.
This is backup command.
BACKUP DATABASE [Marshall] TO DISK = N'F:\SQLBackups\Marshall_Diff.bak' WITH DIFFERENTIAL , NOFORMAT, NOINIT, NAME = N'Marshall-Hourly Differential Backup', SKIP, NOREWIND, NOUNLOAD, STATS = 10 GO
And below is the error that starts as of 1:00PM
Step ID 1 Server MSNT01 Job Name Back Up - Marshall Hourly Diff Step Name 1 Duration 00:00:00 Sql Severity 16 Sql Message ID 3013 Operator Emailed Operator Net sent Operator Paged Retries Attempted 0 Message Executed as user: MARSHALL\david. Cannot perform a differential backup for database "Marshall", because a current database backup does not exist. Perform a full database backup by reissuing BACKUP DATABASE, omitting the WITH DIFFERENTIAL option. [SQLSTATE 42000] (Error 3035) BACKUP DATABASE is terminating abnormally. [SQLSTATE 42000] (Error 3013). The step failed.