Veritas NetBackup™ for Microsoft SQL Server Administrator's Guide
- Introducing NetBackup for SQL Server
- Installing NetBackup for SQL Server
- Instance Management for SQL Server Intelligent Policies
- Viewing the SQL Server instances and instance groups in instance management
- About registering SQL Server instances
- Configuring SQL Server backups with SQL Server Intelligent Policy
- Configuring NetBackup for SQL Server
- Performing restores of SQL Server
- Redirecting a SQL Server database to a different host
- Restoring multistreamed SQL Server backups
- Protecting SQL Server data with VMware backups
- About protecting SQL Server data with VMware backups
- Using NetBackup for SQL Server with Snapshot Client
- Using copy-only snapshot backups to affect how differentials are based
- About SQL Server agent grouped backups (legacy SQL Server policies)
- Protecting SQL Server in high availability (HA) environments
- About using NetBackup to protect SQL Server availability groups
- About protecting the preferred replica in a SQL Server availability group (legacy backup policies)
- About protecting a specific node in a SQL Server availability group
- About NetBackup for SQL Server with database mirroring
- Backup and recovery concepts
- Overview of SQL Server backup and recovery concepts
- About recovery factors for SQL Server
- Using NetBackup for SQL Server with multiple NICs
- Configuring backups with legacy SQL Server policies using clients and batch files
- About using batch files with NetBackup for SQL Server
- About schedule properties
- Backing up read-only filegroups
- Performing user-directed operations with dbbackex
- Using bplist to retrieve a list of SQL Server backups
- SQL Server backups and restores in an SAP environment (legacy SQL Server policies)
- About SQL Server backups and restores in an SAP environment
- Troubleshooting
- About debug logging for SQL Server troubleshooting
- Disaster recovery of a SQL Server
- Appendix A. Sample batch files
- About sample backup batch files for legacy SQL Server policies
- About sample restore batch files
- About sample backup batch files for legacy SQL Server policies
- Appendix B. Multiplexed backups
- Appendix C. Register authorized locations
About differential backups
Unlike the transaction log backup, the differential backup is a backup of the database. The differential includes all of the changes that were made since the last full backup. If you made several differential backups since the last full backup, you only need to restore the last full database, followed by the last differential. You would not need to restore any of the intermediate differentials.
Differential backups include the following types of backups:
Database differentials
Individual filegroup differentials
Read-write filegroup differentials, i.e., any backups that include differentials on all the read-write filegroups in a database.
Partial differential filegroups, i.e., any backups that include differentials of only the filegroups that the user selects.
Caution:
Microsoft recommends that you do not create more than one type of differential backup for the same object.
Caution:
NetBackup does not consider differential images when it determines recovery staging strategies if more than one type of differential is found for the same object.
A typical backup procedure may use full database, differential, and transaction log backups in ascending order of frequency. For example the full database backup may be taken bi-weekly and the differential may be taken nightly. Then the transaction log backup may be made more frequently for either mission critical or high volume applications.
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