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Verify a database backup using T-SQL

By Nakul Vachhrajani,

The RESTORE command provides the facility to very easily validate a backup (taken via SQL Server, not via 3rd party utilities like SQLLite). This T-SQL code can help in ensuring that the backup file is structurally consistent, and therefore helps rule out I/O issues.

The checks performed by RESTORE VERIFYONLY include (per Books On Line):

  • That the backup set is complete and all volumes are readable
  • Some header fields of database pages, such as the page ID (as if it were about to write the data)
  • Checksum (if present on the media)
  • Checking for sufficient space on destination devices

This script has also been published on my blog at: http://beyondrelational.com/blogs/nakul/archive/2011/04/18/a-script-to-verify-a-database-backup.aspx


Before running the script, please substitute the backup location and the code for the database files to suit your database configuration.



Nakul Vachhrajani,

Be courteous. Drive responsibly.


Total article views: 1761 | Views in the last 30 days: 0
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