INF: Differential Backup Time Considerations

ID: Q196658


The information in this article applies to:
  • Microsoft SQL Server version 7.0


SUMMARY

A differential backup only records changes made to the database since the last full backup was made. While typically much faster than a full database backup, elapsed time for SQL Server 7.0 differential backup is roughly proportional to the allocated space in the database. Consequently, a differential backup on a very large database may take longer than expected, even if few changes have occurred since the last full database backup.

If the amount of time required for a differential backup is too large, you should consider doing log backups instead.

Additional query words: back up diff

Keywords :
Version : winnt:7.0
Platform : winnt
Issue type : kbinfo


Last Reviewed: July 14, 1999
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