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When the restore process is complete and the database is online, SQL Safe takes over and restores the remaining data to the data files in the background. If SQL Server needs data not yet restored, SQL Safe delivers the data to SQL Server directly from the backup. Because SQL Safe never interferes in the SQL Server log operations, ACID (Atomicity, Consistency, Isolation and Durability) compliance for your databases is not affected. When SQL Safe completes data file restoration, it removes itself from all I/O activity of the database and leaves behind a database identical to one restored with a traditional restore process. As a result, SQL Safe is no longer required to access the database.
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You cannot use the InstantRestore feature on any version of the Windows 2000 operating system and Microsoft SQL Server 7. |
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Beginning with version 7.0, SQL Safe includes a mini-filter driver to support the InstantRestore feature. The driver, named SQL SafeFilterDriver, allows SQL Server to access database data while SQL Safe is performing an instant restore. The driver is only used during an instant restore and is no longer necessary once the database is completely restored. |
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