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
NetBackup CloudCatalyst workflow processes
Figure: Workflow on a CloudCatalyst storage server shows the workflow on a CloudCatalyst storage server for uploading data to the cloud.
Note that a single CloudCatalyst storage server can only write to one cloud provider and to one bucket within that cloud provider.
ESFS uses daemons to perform the following functions in its database:
Veritas NetBackup Extendable Storage File System Service daemon (vxesfsd): This is the primary file system daemon. It is responsible for writing data into the MSDP cache files.
Veritas NetBackup Extendable Storage Proxy (vxesp) daemons: These daemons are responsible for interacting with the cloud. Under normal operations, there are always two vxesp processes: one is the master and one is the worker.
The vxesp daemon produces the following log: /usr/openv/netbackup/logs/esfs_storage
vxesfsd includes three subcomponents that perform various tasks as part of ESFS:
Monitor component: The monitor component checks the file queue for files to be uploaded and checks the local cache directory for cache eviction purposes, among other activities.
Storage manager component: Notifies vxesp processes when there's work to be done, manages synchronous (downloads from the cloud) and asynchronous (uploads to and deletions in the cloud), and shared memory, among other activities.
The vxesfsd daemon produces the following logs in /usr/openv/netbackup/logs/:
Logs the interactions of the ESFS storage manager with vxesp.
Logs job status updates and periodic tasks such as cache eviction and FSDB backups.
Logs FSDB actions that are specific to the ESFS database.
As part of the Cloud Storage Server Configuration Wizard, the administrator configures a local cache directory (local_cache_dir). The directory must be on either a Linux file system or, in the case of an appliance, a VxFS file system.
The directory is then split into two:
A cache directory: local_cache_dir/cache/userdata
ESFS writes out the data and the metadata in this location. This directory is mapped directly to the storage directory (local_cache_dir/storage). There are not two copies of each file on this media server.
A storage directory: local_cache_dir/storage
This path is the mount point to the ESFS file system. This is what MSDP knows as its storage directory.
NetBackup periodically performs data eviction tasks in the cache directory to create space for new backups. If necessary, the administrator can change when or how often data eviction occurs. For example, by default, if a file is not accessed in 30 days, and it has been uploaded to the cloud successfully, it is removed from the cache directory. These options are configured in the esfs.json file.