Event ID - 156

Event Id156
SourceESE97
DescriptionMSExchangeDS ((210) ) Database C:\exchsrvr\DSADATA\dir.edb needs a full backup before incremental backup.
Event InformationAccording to Microsoft:
CAUSE:
This behavior can occur because, in order to perform a full backup, Backup Exec relies on the archive bits being set. Occasionally, Backup Exec does not reset the archive bit and therefore cannot perform a full backup. This is a known behavior with Backup Exec 7.0 and earlier versions.
RESOLUTION:
To resolve this behavior, contact the Backup Exec vendor, Veritas, to obtain a fix. The fix that resolves the behavior is BNT7I725.EXE.To work around this behavior, use NTBackup.exe to perform a full backup.
Reference LinksXADM: Event 156 Occurs When You Use Seagate Backup Exec 7.0 to Back Up an Exchange Server

Catch threats immediately

We work side-by-side with you to rapidly detect cyberthreats
and thwart attacks before they cause damage.

See what we caught

Did this information help you to resolve the problem?

Yes: My problem was resolved.
No: The information was not helpful / Partially helpful.