SQL Server error 17204 of severity 16 state 1 shows, FCB open failed could not open file, how to fix the the error of event ID 17204 source MS SQL Server.

1. SQL SERVER 17204
FCB (OPEN FAILED)
2008-03-27 13:21:34.58 spid55 Error: 17204, Severity: 16,
State: 1
2010-03-27 14:21:34.58 spid55 FCB :: Open failed : Could
not open file c:Program FilesMicrosoft SQL

2. INDEX
• Introduction
• Reasons of Error 17204
• Error Containing Information
• Fix SQL Server Error 17204
 If Service Account Password Changed
 If Model Database is Corrupted
 If Temp_db moved incorrectly
• Conclusion

3. Introduction
What is SQL Server Error 17204?
The error 17204 encounters during the startup process of SQL
Server instance or any database operation that attempts to start
the database. Error 17204 is an example of OS error type 5.

4. Reasons of Error 17204
• Service account password has been changed.
• Model database corruption.
• System data files are accidentally deleted.
• Temp_db database moved incorrectly.
• Startup parameters have incorrect path.

5. Error Containing Information
• The function that trying to open the file can be identify
easily.
• Contains full path information of file.
• Error 17204 also contains the file ID.
• The error also shows error description and code.

6. Fix SQL Server Error 17204
There are certain aspects of SQL Server FCB open failed error to
resolve the issue please have a look on the different scenarios,
that are discussed step by step easily.

7. If Service Account Password Changed
a.Update the password in services
b.Type a new password using SQL Server Configuration
Manager

8. If Model Database is Corrupted
a.Restore the database from backup
b.Get MDF & LDF file from different server
c.Repair the SQL Instance & rebuild the system database.

9. If Temp_db moved incorrectly
If problem is related with temp_db then you need to create the
path like this:
a.Connect to the SQL Server instance using SQLCMD.
b.Alter the temp_db & stop the services.
c.Now, start the SQL Server normally.

10. Conclusion
In the present tutorial I have discussed about the
error 17204 that occurs at the time of accessing the
file and if the user is unable to access the file then
error FCB Open failed occurs.

11. MORE RESOURCES
To know more how to resolve the SQL Server 17204 FCB
Open Failed please follow the given link.
http://sqltechtips.blogspot.com/2015/12/fcb-open-failed-error-17204.html