Error 1019038 DB file is missing

During some testing we got an error in Dataforms ‘can’t connect to essbase’ and in EAS: ‘Error 1019038 DB file is missing’

At first there was nothing to see so I look in the application log of this Essbase application.

Here I found the real problem:
Disk error ‘no more space left’….. so far for monitoring :S

But when I had made some extra space the error was still here:

Here are the things I did to solve this problem:

• Don’t panic
• Stop Hyperion or just Essbase
• Go to the directory: $ARBORPATH/app/applicationName/databaseName/
• In this directory there should be the following  two files: databaseName.db and databaseName.dbb
• If the error is still ‘DB file is missing’ you have to copy databaseName.dbb to databaseName.db
• Now start Hyperion or just Essbase.