Veritas NetBackup™ Deduplication Guide
- Introducing the NetBackup media server deduplication option
- Planning your deployment
- About MSDP storage and connectivity requirements
- About NetBackup media server deduplication
- About NetBackup Client Direct deduplication
- About MSDP remote office client deduplication
- About MSDP performance
- MSDP deployment best practices
- Provisioning the storage
- Licensing deduplication
- Configuring deduplication
- Configuring the Deduplication Multi-Threaded Agent behavior
- Configuring the MSDP fingerprint cache behavior
- Configuring MSDP fingerprint cache seeding on the storage server
- Configuring a storage server for a Media Server Deduplication Pool
- Configuring a disk pool for deduplication
- Configuring a Media Server Deduplication Pool storage unit
- About MSDP optimized duplication within the same domain
- Configuring MSDP optimized duplication within the same NetBackup domain
- Configuring MSDP replication to a different NetBackup domain
- About NetBackup Auto Image Replication
- Configuring a target for MSDP replication to a remote domain
- Creating a storage lifecycle policy
- Resilient Network properties
- Editing the MSDP pd.conf file
- About protecting the MSDP catalog
- Configuring an MSDP catalog backup
- Configuring deduplication to the cloud with NetBackup CloudCatalyst
- Using NetBackup CloudCatalyst to upload deduplicated data to the cloud
- Configuring a CloudCatalyst storage server for deduplication to the cloud
- Monitoring deduplication activity
- Viewing MSDP job details
- Managing deduplication
- Managing MSDP servers
- Managing NetBackup Deduplication Engine credentials
- Managing Media Server Deduplication Pools
- Changing a Media Server Deduplication Pool properties
- Configuring MSDP data integrity checking behavior
- About MSDP storage rebasing
- Managing MSDP servers
- Recovering MSDP
- Replacing MSDP hosts
- Uninstalling MSDP
- Deduplication architecture
- About unified logging
- About legacy logging
- Troubleshooting MSDP installation issues
- Troubleshooting MSDP configuration issues
- Troubleshooting MSDP operational issues
- Troubleshooting CloudCatalyst issues
- CloudCatalyst logs
- Problems encountered while using the Cloud Storage Server Configuration Wizard
- Disk pool problems
- Problems during cloud storage server configuration
- CloudCatalyst troubleshooting tools
- Appendix A. Migrating to MSDP storage
About MSDP data integrity checking
Deduplication metadata and data may become inconsistent or corrupted because of disk failures, I/O errors, database corruption, and operational errors. NetBackup checks the integrity of the deduplicated data on a regular basis. NetBackup performs some of the integrity checking when the storage server is idle. Other integrity checking is designed to use few storage server resources so as not to interfere with operations.
The data integrity checking process includes the following checks and actions:
Automatically constrains data loss or corruption to ensure that new backups are intact.
Automatically runs a cyclic redundancy check (CRC) for the data containers.
Automatically collects and cleans up storage garbage.
Automatically recovers the container-based reference database (or parts of the database) if it is corrupt or missing.
Automatically finds storage leaks and fixes them.
NetBackup resolves many integrity issues without user intervention, and some issues are fixed when the next backup runs. However, a severe issue may require intervention by Veritas Support. In such cases, NetBackup writes a message to the NetBackup Disk Logs report.
The data integrity message code is 1057.
NetBackup writes the integrity checking activity messages to the NetBackup Deduplication Engine
You can configure some of the data integrity checking behaviors.