Errore Sql : SQL Server has encountered 1 occurrence(s) of IO
Causa jobs, Backup, Index defrag, or DTS package schedulate
 
--> Soluzione : forzare una compattazione del log file

Compattazione del log file

es:

DBCC SHRINKFILE(pubs_log, 20)
BACKUP LOG pubs WITH TRUNCATE_ONLY
DBCC SHRINKFILE(pubs_log,20)