Veritas NetBackup™ for DB2 Administrator's Guide
- Introduction to NetBackup for DB2
- Installing NetBackup for DB2
- Configuring NetBackup for DB2
- Overview of NetBackup for DB2 configuration
- About permissions for NetBackup for DB2 log files (UNIX)
- About configuring a backup policy for a DB2 database
- About adding backup selections to a DB2 policy
- About adding schedules to a NetBackup for DB2 policy
- Performing a manual backup
- About backing up archive log files with the user exit program
- Configuring the run-time environment
- About NetBackup for DB2 templates and shell scripts
- Performing backups and restores of DB2
- Using Snapshot Client with NetBackup for DB2
- NetBackup for DB2 with Snapshot Client features
- About NetBackup for DB2 with Snapshot Client operations
- About the sequence of a NetBackup for DB2 backup operation with Snapshot Client methods
- About the sequence of a NetBackup for DB2 restore operation with Snapshot Client methods
- About database objects supported by advanced backup methods
- About multistreaming and DB2 snapshot backups
- About symbolic links and DB2 backups and restores (UNIX)
- NetBackup for DB2 stream-based operations
- NetBackup for DB2 file-based operations
- Example: multiple sessions for a DB2 snapshot backup
- About configuring Snapshot Client with NetBackup for DB2
- Configuration requirements for snapshot backups with NetBackup for DB2
- Configuring a snapshot policy for NetBackup for DB2
- About configuring the db2.conf for a snapshot policy
- Restoring NetBackup for DB2 from a snapshot backup
- About restoring individual files from a NetBackup for DB2 snapshot backup
- About NetBackup for DB2 restores of volumes and file systems using snapshot rollback
- Performing a NetBackup for DB2 point-in-time rollback restore from a SnapVault backup (UNIX)
- Performing a snapshot rollback restore from the Java or Windows interface
- Performing a snapshot rollback restore from the command line
- Troubleshooting NetBackup for DB2 rollback restores
- About configuring NetBackup for DB2 block-level incremental backups on UNIX
- How BLI works with NetBackup for DB2 (UNIX)
- About the Storage Checkpoint facility and NetBackup for DB2
- Configuration requirements for BLI backups with NetBackup for DB2
- Storage Checkpoint configuration on the NetBackup for DB2 client
- Configuring policies for BLI backups with NetBackup for DB2
- BLI incremental backup options using NetBackup for DB2
- About Snapshot Client effects
- Performing NetBackup for DB2 backups with Snapshot Client methods
- Performing NetBackup for DB2 restores with Snapshot Client methods
- Troubleshooting NetBackup for DB2
- NetBackup debug logs and reports
- Enabling the debug logs for a NetBackup for DB2 client automatically (Windows)
- Enabling the debug logs manually (Windows)
- Enabling the debug logs manually (UNIX)
- Enabling the debug logs manually (UNIX)
- About the NetBackup for DB2 log files
- Setting the debug level on a Windows client
- Setting the debug level on a UNIX client
- About NetBackup server reports
- Minimizing timeout failures on large database restores
- Minimizing the loading and unloading of tapes for database backups
- Use the NET_BUFFER_SZ file to speed up a slow restore
- About false restore failures reported in the activity monitor
- About the error message codes
- Delays in completion of backup jobs
- Appendix A. Configuration for a DB2 EEE (DPF) environment
- Appendix B. Using NetBackup for DB2 with SAP®
About the Storage Checkpoint facility and NetBackup for DB2
The BLI backup methodology uses the Storage Checkpoint facility in the Veritas File System (VxFS). This facility is available through the Storage Foundation for DB2.
The VxFS Storage Checkpoint facility keeps track of the file blocks modified by the database since the last backup. NetBackup with BLI backup leverages this facility to back up only changed blocks for an incremental backup. The entire volume or file is not backed up.
VxFS Storage Checkpoint is a disk-efficient and I/O-efficient snapshot of file systems. A Storage Checkpoint provides a consistent, stable view of a file system at the instant when the file system was snapped or checkpointed. Instead of making a physically separate copy of the file system, a Storage Checkpoint tracks changed file system blocks. Disk space is saved and I/O overhead is significantly reduced.
Because the changed blocks are tracked, the VxFS Storage Checkpoint enables BLI backups. VxFS Storage Checkpoint facility provides a consistent view of file systems, which allows BLI backup to freeze the database image during database backups.
The Storage Checkpoint operation is similar to the snapshot file system mechanism. However, the Storage Checkpoint persists after a system restart which is unlike a snapshot. Also, the Storage Checkpoint operation is totally transparent to backup administrators. The Checkpoint image is managed and available only through NetBackup or through the VxDBA utility for database backup available with the Veritas Storage Foundation.
For more information on Storage Checkpoints, see the Veritas Storage Foundation Administrator's Guide.
You can take a Storage Checkpoint while the database is online or offline. To take a Storage Checkpoint while the database is online, you must enable archive logging. During the creation of the Storage Checkpoint, all tablespaces are placed in backup mode.