Sql server vdi backup4/14/2023 ![]() ![]() Review the VDI reference documentation in this section. However, snapshot backups may be rolled forward with conventional database differential, file differential, and transaction log backups. Snapshot backups are limited to full database and file/filegroup backups only. ![]() Member of the SQL sysadmin fixed server role. For example, the client might compress or encrypt the data block associated with the WriteCmd and store the data in a compressed file format. Local administrator of the computer where the SQL Server resides, like computernameuser1. When the SQL Server backup would have called the Win32 WriteFile API backup instead calls the server instance, WriteCmd and the client instance accepts and processes the write event. To access the SQL Server databases to perform backup and restore operations, SQL sysadmin rights are required. Snapshot backups using underlying split-mirror or copy-on-write technology.Ĭonventional online backups done through VDI can take advantage of the full range of features of backup and restore in SQL Server. By default, the local system account is used. VDI supports two primary types of backup technologies:Ĭonventional online backups where the entire contents of the backup set is read and transferred to the backup media. VDI was introduced in SQL Server 7.0 and is supported and enhanced in later versions. ![]() It enables third party vendors to achieve the same performance characteristics as the SQL Server native backup/restore, and makes the full range of backup/restore functionality available. The virtual device interface (VDI) provides the highest online backup throughput with minimal degradation to the transaction workload, as well as the fastest possible restore times. This section contains the specifications for SQL Server application programming interfaces intended for use by third-party backup software vendors.
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