The best way to recover is backup data restoration and almost all Corporates have a backup of their data, however, in the situation where the backup is also taken at the same location and there is a sudden power outage, and the result might be SQL backup file corruption.
It is a fact that all SQL Administrators keep a Hawk’s eye view of their database administration and remain alert 24×7 despite that unexpected reasons may lead to File Header page corruption:Ĭorporates have a backup disaster recovery plan in place but most of the time, it is either unreachable or the Administrator is not available to execute the plan. The outcome is “ Inconsistency in Database” or “ Complete Inaccessibility of Database” in extreme cases. Probable Reasons and Effects – SQL File Header CorruptionĪs discussed above, the SQL File Header page is an important component and any corruption on this page directly affects the database to the extent that it is rendered dysfunctional.
Now that you have an understanding of SQL Database basics, let’s discuss SQL DB File Header Corruption error. The basic Syntax command is: DBCC FILEHEADER (‘DBName’, ‘FileId’) ĭBCC FILEHEADER command returns a tabular output with table contents indicating information about the database including Output, Growth, Binding ID, Status, Sector size and more. When an Administrator executes SQL Database DBCC FILEHEADER command on a particular database, it searches for two parameters – 1) Database name/ID and 2) File ID. A better option is “DBCC FILEHEADER” also known as purpose command. The entire file is restored if there is Damage or corruption in File Header. All files have Header as, which can’t be recovered by CHECKDB. Stores metadata about that particular SQL Data file. Page Description – (Header): First page of the SQL data file and occupies approx 8KB storage space. Find below structure of SQL server data file: Page No In a nutshell, SQL server reads and writes whole data-pages. All disk Input-Output related operations are done on pages. NDF and the disk space logically distributes itself into pages numbering 0 till n. Similarly, SQL data file is stored with extension. Each file is identified with a unique File ID number. The first page is also known as file header page that contains information about the attributes of the file. In SQL Server, data is stored in a unit called Page, numbered sequentially starting with 0 for the first page in the file. Before discussing about solutions to fix the error, let’s first understand the basics of the Database file Header page, its effects, possible causes, and appropriate solutions. This is a case of Microsoft SQL server error 5172. This is an informational message only no user action is required. 15:45:36.39 spid9s SQL Trace was stopped due to server shutdown. See the SQL Server error log for details. 15:45:36.39 spid9s Database ‘model’ cannot be opened due to inaccessible files or insufficient memory or disk space. 15:45:36.37 spid9s The header for file ‘C:\Program Files\Microsoft SQL Server\MSSQL12.DAR_P11D\MSSQL\DATA\model.mdf’ is not a valid database file header. 15:45:36.36 spid9s Starting up database ‘model’. The ERRORLOG shows the following error about the Page Audit property:
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