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How to Enable Automatic Archive Validation

Archive validation enables you to validate the archives as they are created. Before you can enable automatic archive validation, you must set up a secondary database server, also called a validation server. Because the archiving process is a simple backup, it is possible that the actual image stored on the disk can be corrupted due to a hardware issue.

Using the archive validation feature, you can ensure the archive (backup) was successful and can be restored. After an archive is created, the validation server is notified that a new archive has been created. The validation server attempts to restore the archive. A validation server must be another instance of SQL Server different from the one in which the job is running. The version of SQL Server on the validation server must be the same version as the SQL Server used to host the databases.

If the restore is successful, the validation server communicates this information back to the BizTalk Tracking (BizTalkDTADb) database. Until a successful restore is completed, the purge job will not purge any more data.

If the restore is not successful, the validation server communicates this information back to the BizTalk Tracking database. The purge job creates another archive and awaits validation of the new archive. This prevents the possibility of a corrupted archive causing you to lose tracking data.

You must be logged on with an account that is a member of the SQL Server sysadmin fixed server role to perform this procedure.

  1. On the validation server, click Start, click All Programs, click Microsoft SQL Server 2008 SP2, and then click SQL Server Management Studio.

  2. In the Connect to Server dialog box, specify the name of the SQL Server where you can validate the archive by performing a test of the restore process, and then click Connect to connect to the appropriate SQL Server.

    noteNote
    This server should not be another BizTalk Server database server as it reduces system performance when validating the archive.

  3. In Microsoft SQL Server Management Studio, click File, click Open, and then click File.

  4. In the Open File dialog box, browse to the following SQL script:

    %SystemDrive%\Program Files\Microsoft BizTalk Server 2010\Schema\BTS_Tracking_ValidateArchive.sql
    
    noteNote
    You might need to copy the script from the computer running BizTalk Server to the validation server.

  5. Click the Query menu, and then click Execute.

    noteNote
    The BTS_Tracking_ValidateArchive.sql script only works if the folder where you are archiving your BizTalk Tracking (BizTalkDTADb) database is a network share.

    The BTS_Tracking_ValidateArchive.sql script creates a SQL Server Agent job called ValidateArchive.

  6. The archiving and purging process potentially accesses and/or updates databases in different SQL Servers, so you must set up linked servers between the involved SQL Server instances. In SQL Server Management Studio, double-click Server Objects, right-click Linked Servers, and then click New Linked Server.

    You must set up linked server between:

    • Each of your BizTalk MessageBox (BizTalkMsgBoxDb) databases and the BizTalk Tracking (BizTalkDTADb) database if they reside on different servers.

    • The BizTalk Tracking (BizTalkDTADb) database and the validating server for archive validation.

    • The service accounts for the SQL Server Agent on the computer hosting the BizTalk MessageBox (BizTalkMsgBoxDb) database must have the db_datareader and db_datawriter permissions for the BizTalk Tracking (BizTalkDTADb) database on the linked server.

    noteNote
    The account used for running the job should have Database Operator (DBO) privileges on both the databases.

  7. In the New Linked Server dialog box, on the General page, in Linked server, enter the name of the server you want to link to.

    For example, the server hosting the BizTalk MessageBox (BizTalkMsgBoxDb) database, BizTalk Tracking (BizTalkDTADb) database, or the validation server.

  8. Under Server type, click SQL Server, and then click OK.

  9. In Microsoft SQL Server Management Studio, double-click SQL Server Agent, and then click Jobs.

  10. In the Object Explorer Details pane, right-click ValidateArchive, and then click Properties.

  11. In the Job Properties - ValidateArchive dialog box, under Select a page, click Steps.

  12. In the Job step list, click validate, and then click Edit.

  13. On the General page, in the Command box, in the command, exec dtasp_ValidateArchive null, null, replace null, null with the name of the server hosting the BizTalk Tracking database, surrounded by single quotes, followed by the name of the BizTalk Tracking database, surrounded by quotes, and then click OK. For example:

    exec dtasp_ValidateArchive ' <TrackingServerName> ', ' <TrackingDatabaseName> '

noteNote
The ValidateArchive job does not have a schedule and you should not configure a schedule for it. Instead, the DTA Purge and Archive (BizTalkDTADb) job starts this job automatically when an archive is created.

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