Integration Concepts - HP Data Protector A.06.11 Integration Manual

Integration concepts

Data Protector integrates with SQL Server through the Data Protector sql_bar.exe
executable, installed on SQL Server. It implements multiple virtual devices for backup
and restore and transforms SQL Server Virtual Device Interface (VDI) commands from
SQL Server into Data Protector backup or restore streams.
The VDI architecture allows the Data Protector General Media Agent to access data
directly in the SQL Server memory, provided the devices are directly attached to SQL
Server. Therefore, high backup and restore speed is achieved.
You can perform interactive and scheduled full database backups, differential
database backups, and transaction log backups. Full and differential backups,
combined with regular transaction log backups, prevent data loss if a disk failure
occurs. Furthermore, transaction log backups are needed to perform point-in-time
restore.
You can back up the whole server or particular databases listed below:
User databases
Master
Model
Distribution
Msdb
For more information about system databases, see the SQL Server documentation.
Data Protector restores databases so that the last differential backup is applied to
the most recent full backup. Then the transaction log backups are applied according
to the specified restore options.
28 Integrating Microsoft SQL Server and Data Protector
Contain user data.
Controls user databases and the SQL Server operation. Keeps track
of user accounts, configurable environment variables, and system
error messages.
Provides a template or prototype for new user databases.
A system database used by SQL Server replication components,
such as Distribution Agent, to store data, including transactions,
snapshot jobs, synchronization status, and replication history
information.
Provides storage for scheduling and backup information.