NetBackup™ Deduplication Guide
- Introducing the NetBackup media server deduplication option
- Quick start
- Planning your deployment
- Planning your MSDP deployment
- NetBackup naming conventions
- About MSDP deduplication nodes
- About the NetBackup deduplication destinations
- About MSDP storage capacity
- About MSDP storage and connectivity requirements
- About NetBackup media server deduplication
- About NetBackup Client Direct deduplication
- About MSDP remote office client deduplication
- About the NetBackup Deduplication Engine credentials
- About the network interface for MSDP
- About MSDP port usage
- About MSDP optimized synthetic backups
- About MSDP and SAN Client
- About MSDP optimized duplication and replication
- About MSDP performance
- About MSDP stream handlers
- MSDP deployment best practices
- Use fully qualified domain names
- About scaling MSDP
- Send initial full backups to the storage server
- Increase the number of MSDP jobs gradually
- Introduce MSDP load balancing servers gradually
- Implement MSDP client deduplication gradually
- Use MSDP compression and encryption
- About the optimal number of backup streams for MSDP
- About storage unit groups for MSDP
- About protecting the MSDP data
- Save the MSDP storage server configuration
- Plan for disk write caching
- Provisioning the storage
- Licensing deduplication
- Configuring deduplication
- Configuring MSDP server-side deduplication
- Configuring MSDP client-side deduplication
- About the MSDP Deduplication Multi-Threaded Agent
- Configuring the Deduplication Multi-Threaded Agent behavior
- Configuring deduplication plug-in interaction with the Multi-Threaded Agent
- About MSDP fingerprinting
- About the MSDP fingerprint cache
- Configuring the MSDP fingerprint cache behavior
- About seeding the MSDP fingerprint cache for remote client deduplication
- Configuring MSDP fingerprint cache seeding on the client
- Configuring MSDP fingerprint cache seeding on the storage server
- About sampling and predictive cache
- Enabling 400 TB support for MSDP
- About MSDP Encryption using NetBackup Key Management Server service
- About MSDP Encryption using external KMS server
- Configuring a storage server for a Media Server Deduplication Pool
- About disk pools for NetBackup deduplication
- Configuring a disk pool for deduplication
- Creating the data directories for 400 TB MSDP support
- Adding volumes to a 400 TB Media Server Deduplication Pool
- Configuring a Media Server Deduplication Pool storage unit
- Configuring client attributes for MSDP client-side deduplication
- Disabling MSDP client-side deduplication for a client
- About MSDP compression
- About MSDP encryption
- Configuring encryption for MSDP local storage volume
- Configuring encryption for MSDP cloud storage volumes
- Configuring MSDP encryption on different platforms
- About the rolling data conversion mechanism for MSDP
- Modes of rolling data conversion
- MSDP encryption behavior and compatibilities
- Configuring optimized synthetic backups for MSDP
- About a separate network path for MSDP duplication and replication
- Configuring a separate network path for MSDP duplication and replication
- About MSDP optimized duplication within the same domain
- Configuring MSDP optimized duplication within the same NetBackup domain
- About MSDP replication to a different domain
- Configuring MSDP replication to a different NetBackup domain
- About NetBackup Auto Image Replication
- About trusted primary servers for Auto Image Replication
- About the certificate to use to add a trusted primary server
- Add a trusted primary server
- Remove a trusted primary server
- Enable inter-node authentication for a NetBackup clustered primary server
- Configuring NetBackup CA and NetBackup host ID-based certificate for secure communication between the source and the target MSDP storage servers
- Configuring external CA for secure communication between the source MSDP storage server and the target MSDP storage server
- Configuring a target for MSDP replication to a remote domain
- About configuring MSDP optimized duplication and replication bandwidth
- About performance tuning of optimized duplication and replication for MSDP cloud
- About storage lifecycle policies
- About the storage lifecycle policies required for Auto Image Replication
- Creating a storage lifecycle policy
- About MSDP backup policy configuration
- Creating a backup policy
- Resilient network properties
- Adding an MSDP load balancing server
- About variable-length deduplication on NetBackup clients
- Managing the variable-length deduplication using the cacontrol command-line utility
- About the MSDP pd.conf configuration file
- Editing the MSDP pd.conf file
- About the MSDP contentrouter.cfg file
- About saving the MSDP storage server configuration
- Saving the MSDP storage server configuration
- Editing an MSDP storage server configuration file
- Setting the MSDP storage server configuration
- About the MSDP host configuration file
- Deleting an MSDP host configuration file
- Resetting the MSDP registry
- About protecting the MSDP catalog
- Changing the MSDP shadow catalog path
- Changing the MSDP shadow catalog schedule
- Changing the number of MSDP catalog shadow copies
- Configuring an MSDP catalog backup
- Updating an MSDP catalog backup policy
- About MSDP FIPS compliance
- Configuring the NetBackup client-side deduplication to support multiple interfaces of MSDP
- About MSDP multi-domain support
- About MSDP application user support
- About MSDP mutli-domain VLAN Support
- About NetBackup WORM storage support for immutable and indelible data
- Running MSDP services with the non-root user
- Running MSDP commands with the non-root user
- MSDP cloud support
- About MSDP cloud support
- Create a Media Server Deduplication Pool (MSDP, MSDP Cloud) storage server in the NetBackup web UI
- Creating a cloud storage unit
- Updating cloud credentials for a cloud LSU
- Updating encryption configurations for a cloud LSU
- Deleting a cloud LSU
- Backup data to cloud by using cloud LSU
- Duplicate data cloud by using cloud LSU
- Configuring AIR to use cloud LSU
- About backward compatibility support
- About the configuration items in cloud.json, contentrouter.cfg, and spa.cfg
- Cloud space reclamation
- About the tool updates for cloud support
- About the disaster recovery for cloud LSU
- About Image Sharing using MSDP cloud
- About restore from a backup in Microsoft Azure Archive
- About Veritas Alta Recovery Vault Azure
- Configuring Veritas Alta Recovery Vault Azure and Azure Government
- Configuring Veritas Alta Recovery Vault Azure and Azure Government using the CLI
- Migrating from standard authentication to token-based authentication for Recovery Vault
- About MSDP cloud immutable (WORM) storage support
- Creating a cloud immutable storage unit using the web UI
- Updating a cloud immutable volume
- About immutable object support for AWS S3
- About immutable object support for AWS S3 compatible platforms
- About immutable storage support for Azure blob storage
- About immutable storage support for Google Cloud Storage
- About using the cloud immutable storage in a cluster environment
- Troubleshooting the errors when disk volume creation using web UI fails
- Deleting the immutable image with the enterprise mode
- Deleting the S3 object permanently
- About MSDP cloud admin tool
- About instant access for object storage in cloud
- About NetBackup support for AWS Snowball Edge
- Upgrading to NetBackup 10.3 and cluster environment
- S3 Interface for MSDP
- About S3 interface for MSDP
- Prerequisites for MSDP build-your-own (BYO) server
- Configuring S3 interface for MSDP on MSDP build-your-own (BYO) server
- Identity and Access Management (IAM) for S3 interface for MSDP
- S3 Object Lock In Flex WORM
- S3 APIs for S3 interface for MSDP
- Disaster recovery in S3 interface for MSDP
- Limitations in S3 interface for MSDP
- Logging and troubleshooting
- Best practices
- Monitoring deduplication activity
- Monitoring the MSDP deduplication and compression rates
- Viewing MSDP job details
- About MSDP storage capacity and usage reporting
- About MSDP container files
- Viewing storage usage within MSDP container files
- About monitoring MSDP processes
- Reporting on Auto Image Replication jobs
- Checking the image encryption status
- Managing deduplication
- Managing MSDP servers
- Viewing MSDP storage servers
- Determining the MSDP storage server state
- Viewing MSDP storage server attributes
- Setting MSDP storage server attributes
- Changing MSDP storage server properties
- Clearing MSDP storage server attributes
- About changing the MSDP storage server name or storage path
- Changing the MSDP storage server name or storage path
- Removing an MSDP load balancing server
- Deleting an MSDP storage server
- Deleting the MSDP storage server configuration
- Managing NetBackup Deduplication Engine credentials
- Managing Media Server Deduplication Pools
- Viewing Media Server Deduplication Pools
- Determining the Media Server Deduplication Pool state
- Viewing Media Server Deduplication Pool attributes
- Setting a Media Server Deduplication Pool attribute
- Changing a Media Server Deduplication Pool properties
- Clearing a Media Server Deduplication Pool attribute
- Determining the MSDP disk volume state
- Changing the MSDP disk volume state
- Deleting a Media Server Deduplication Pool
- Deleting backup images
- About MSDP queue processing
- Processing the MSDP transaction queue manually
- About MSDP data integrity checking
- Configuring MSDP data integrity checking behavior
- About managing MSDP storage read performance
- About MSDP storage rebasing
- About the MSDP data removal process
- Resizing the MSDP storage partition
- How MSDP restores work
- Configuring MSDP restores directly to a client
- About restoring files at a remote site
- About restoring from a backup at a target primary domain
- Specifying the restore server
- Managing MSDP servers
- Recovering MSDP
- Replacing MSDP hosts
- Uninstalling MSDP
- Deduplication architecture
- Configuring and using universal shares
- About universal shares
- Advantages of universal shares
- Configuring and using an MSDP build-your-own (BYO) server for universal shares
- MSDP build-your-own (BYO) server prerequisites and hardware requirements to configure universal shares
- Configuring universal share user authentication
- Mounting a universal share created from the NetBackup web UI
- About universal share self-service recovery
- Performing a universal share self-service recovery
- Using the ingest mode
- About universal shares with object store
- Enabling a universal share with object store
- Disaster recovery for a universal share
- Changing the number of vpfsd instances
- Enabling variable-length deduplication (VLD) algorithm for universal shares
- Upgrading to NetBackup 10.3
- About universal share accelerator
- Preparing NetBackup for the universal share accelerator
- Installing the universal share accelerator
- Configure a universal share accelerator
- Creating a protection policy for the universal share accelerator
- About the universal share accelerator quota
- Recovering a point in time for the universal share accelerator
- Deleting a recovered universal share accelerator
- Logging for universal share accelerator
- Logging and reporting for universal share VPFS instance
- Vpfsd logs for fuse operations in universal shares
- Configuring isolated recovery environment (IRE)
- Requirements
- Configuring the network isolation
- Configuring an isolated recovery environment using the web UI
- Configuring an isolated recovery environment using the command line
- Configuring an isolated recovery environment on a NetBackup BYO media server
- Managing an isolated recovery environment on a NetBackup BYO media server
- Configuring A.I.R. for replicating backup images from production environment to IRE BYO environment
- Configuring an isolated recovery environment on a WORM storage server
- Managing an isolated recovery environment on a WORM storage server
- Configuring data transmission between a production environment and an IRE WORM storage server
- Using the NetBackup Deduplication Shell
- About the NetBackup Deduplication Shell
- Managing users from the deduplication shell
- Adding and removing local users from the deduplication shell
- Adding MSDP users from the deduplication shell
- Connecting an Active Directory domain to a WORM or an MSDP storage server for Universal Shares and Instant Access
- Disconnecting an Active Directory domain from the deduplication shell
- Changing a user password from the deduplication shell
- Managing VLAN interfaces from the deduplication shell
- Managing the retention policy on a WORM storage server
- Managing images with a retention lock on a WORM storage server
- Auditing WORM retention changes
- Protecting the NetBackup catalog from the deduplication shell
- About the external MSDP catalog backup
- Managing certificates from the deduplication shell
- Managing FIPS mode from the deduplication shell
- Encrypting backups from the deduplication shell
- Tuning the MSDP configuration from the deduplication shell
- Setting the MSDP log level from the deduplication shell
- Managing NetBackup services from the deduplication shell
- Managing the cyclic redundancy checking (CRC) service
- Managing the content router queue processing (CRQP) service
- Managing the online checking service
- Managing the compaction service
- Managing the deduplication (MSDP) services
- Managing the MSDP services across the cluster
- Managing the Storage Platform Web Service (SPWS)
- Managing the Veritas provisioning file system (VPFS) configuration parameters
- Managing the Veritas provisioning file system (VPFS) mounts
- Managing the NGINX service
- Managing the SMB service
- Monitoring and troubleshooting NetBackup services from the deduplication shell
- Managing S3 service from the deduplication shell
- Troubleshooting
- About unified logging
- About legacy logging
- NetBackup MSDP log files
- Troubleshooting MSDP configuration issues
- Troubleshooting MSDP operational issues
- Verify that the MSDP server has sufficient memory
- MSDP backup or duplication job fails
- MSDP client deduplication fails
- MSDP volume state changes to DOWN when volume is unmounted
- MSDP errors, delayed response, hangs
- Cannot delete an MSDP disk pool
- MSDP media open error (83)
- MSDP media write error (84)
- MSDP no images successfully processed (191)
- MSDP storage full conditions
- Troubleshooting MSDP catalog backup
- Storage Platform Web Service (spws) does not start
- Disk volume API or command line option does not work
- Viewing MSDP disk errors and events
- MSDP event codes and messages
- Unable to obtain the administrator password to use an AWS EC2 instance that has a Windows OS
- Trouble shooting multi-domain issues
- Troubleshooting the cloud compaction error messages
- Appendix A. Migrating to MSDP storage
- Appendix B. Migrating from Cloud Catalyst to MSDP direct cloud tiering
- About migration from Cloud Catalyst to MSDP direct cloud tiering
- About Cloud Catalyst migration strategies
- About direct migration from Cloud Catalyst to MSDP direct cloud tiering
- About postmigration configuration and cleanup
- About the Cloud Catalyst migration -dryrun option
- About Cloud Catalyst migration cacontrol options
- Reverting back to Cloud Catalyst from a successful migration
- Reverting back to Cloud Catalyst from a failed migration
- Appendix C. Encryption Crawler
- Index
Tuning options
To have a faster Graceful mode, one can leverage the CheckSysLoad, BatchSize, and SleepSeconds options to tune the behavior and performance of the Graceful mode.
With a larger number for BatchSize and a smaller number for SleepSeconds, the Graceful mode runs more continuously. When you turn off CheckSysLoad, the Graceful mode keeps running while backup, restore, duplication, replication, compaction, or CRQP jobs are active. Such changes can make the Graceful mode more aggressive, although not as aggressive as the Aggressive mode. The advantage is the tuned Graceful mode has less effect on the system performance than the Aggressive mode for backup, restore, duplication, and replication jobs. It has even less effect than the Aggressive mode with the lowest level 2. The trade-off, especially when CheckSysLoad is turned off, is that it becomes semi-aggressive. It can affect the system performance for the active jobs and it makes the CRC check, CRQP processing, or compaction take a longer time to run and finish.
Aggressive mode has three levels, 2-4. The higher level means more aggressive and usually better performance for the Encryption Crawler. It also means more effect on the system performance for backup, restore, duplication, replication jobs.
For the best performance of the Encryption Crawler, use Level 2-4 for the Aggressive mode based on the daily system loads. Otherwise, use Level 1 for the Graceful mode. Please note that the Aggressive mode with a higher level doesn't result in a better overall system performance for both the Encryption Crawler and the active jobs. It doesn't mean that the Aggressive mode performs better than the Graceful mode either. You may need to monitor the progress of the Encryption Crawler and the system effect for the active jobs to find the best fit.
You can consider dynamically switching between the Aggressive mode and the Graceful mode for a period of a half day to multiple days. Make the changes according to the pattern of the daily system loads and active jobs. Dynamically switching helps you to discover which mode works for your environment.
The Aggressive mode affects the performance of backup, restore, duplication, and replication jobs. The tuned Graceful mode does as well, although not as seriously as the Aggressive mode. To reduce the system effect, one can selectively have the Encryption Crawler turned on for part of the MSDP partitions at the same time.
The Aggressive mode affects the performance of backup, restore, duplication, and replication jobs. The tuned Graceful mode does as well, although not as seriously as the Aggressive mode. To reduce the system effect, you can selectively disable DataStore Write for the MSDP partitions which have Encryption Crawler running. It can be done with the crcontrol --dswriteoff command for BYO setup. For a NetBackup appliance, the command should be executed through the CLISH. Otherwise the NetBackup appliance resets the state automatically after a short time.
You must reset the DataStore Write state when the process finishes to allow the partitions to take in new backup data.
Table: Tuning recommendations
Actions | Explanation |
|---|---|
Turn on Encryption Crawler in the Graceful mode with the default settings. |
Veritas recommends that you wait for fingerprint cache loading to complete before you perform any backups or turn on the Encryption Crawler. Determine when to start by monitoring the The Encryption Crawler is in the Graceful mode by default when you start it. After you start Encryption Crawler, allow it to run for 24 hours to 48 hours with normal backup, duplication, and replication jobs. After this time, the progress of Encryption Crawler process can be checked with the crcontrol --encconvertstate command. After you check on the Encryption Crawler process, review the following: First, check the Progress item and confirm Encryption Crawler progress. If there is no progress or not in the expected speed, you need to make changes to make faster process. Use the Progress item to extrapolate how long Encryption Crawler is expected to take. For example, if 3.3% of the pool is completed in 24 hours, the process may take about 30 days to finish. If the speed is slower than desired, make adjustments to make the Encryption Crawler faster as shown in this process. Please note the Encryption Crawler processes the data containers in reverse order from new to old. It's possible to back up new data after encryption is enforced but before the Encryption Crawler is turned on. If that happens, the Conversion Ratio could be less than 99% for the new data containers at the beginning. While the process is active, the value of Conversion Ratio can become higher with the fact that the older data containers can potentially have more unencrypted data. In this case, the Conversion Ratio, Containers Converted, and Containers Estimated can give more hints to determine the speed for these data containers. Monitoring the change of Conversion Ratio can give some hints on the proportion of the unencrypted data while the Encryption Crawler is active. |
Tune the Graceful mode to run faster. |
You can use the information in Tuning the Graceful mode to speed up the Graceful mode. After the initial tuning, you may need to check the progress and the system effect for the active jobs occasionally. You can do further tuning at any point during the process if desired. If the tuned Graceful mode negatively affects the system performance for the active jobs, you can consider turning off the Encryption Crawler for some of the MSDP partitions. You can keep it running for other partitions by following the recommendations in Turn on Encryption Crawler for part of the MSDP partitions to reduce system effect to reduce the system effect. You can also consider turning off the DataStore Write permission for some MSDP partitions by following the recommendations in Selectively disable DataStore Write for the MSDP partitions to reduce system effect which have the Encryption Crawler running. If the processing speed doesn't meet the expectations, the Aggressive mode can be leveraged for your environment. |
Turn on the Aggressive mode. |
You can use the information in Tuning the Aggressive mode to have the best performance for the Encryption Crawler. Veritas recommends that you start from the lowest level 2, then gradually increase to a higher level. You may need to check the progress and the system effect for the active jobs occasionally. You can perform further tuning at any point during the process if desired. |
Find the tuning point which best balances the process speed and the system effect. |
A faster Encryption Crawler speed usually means more effect on the system for all active jobs. A combination of tuning options may contribute a good balance between both. |