Veritas NetBackup™ Administrator's Guide, Volume I
- Section I. About NetBackup
- Section II. Configuring hosts
- Configuring Host Properties
- About the NetBackup Host Properties
- Access Control properties
- Bandwidth properties
- Busy File Settings properties
- Client Attributes properties
- Client Settings properties for UNIX clients
- Client Settings properties for Windows clients
- Data Classification properties
- Default Job Priorities properties
- Encryption properties
- Exchange properties
- Exclude Lists properties
- Fibre Transport properties
- Firewall properties
- General Server properties
- Global Attributes properties
- Logging properties
- Login Banner Configuration properties
- Media properties
- Network Settings properties
- Port Ranges properties
- Preferred Network properties
- Resilient Network properties
- Restore Failover properties
- Retention Periods properties
- Scalable Storage properties
- Servers properties
- SharePoint properties
- SLP Parameters properties
- Throttle Bandwidth properties
- Universal Settings properties
- User Account Settings properties
- Configuration options for NetBackup servers
- ECA_CERT_PATH for NetBackup servers and clients
- PREFERRED_NETWORK option for NetBackup servers
- THROTTLE_BANDWIDTH option for NetBackup servers
- Configuration options for NetBackup clients
- IGNORE_XATTR option for NetBackup clients
- VXSS_NETWORK option for NetBackup clients
- Configuring server groups
- Enabling support for NAT clients in NetBackup
- Configuring host credentials
- Managing media servers
- Configuring Host Properties
- Section III. Configuring storage
- Configuring disk storage
- Configuring robots and tape drives
- About configuring robots and tape drives in NetBackup
- Adding a robot to NetBackup manually
- Managing robots
- Adding a tape drive to NetBackup manually
- Adding a tape drive path
- Correlating tape drives and device files on UNIX hosts
- Managing tape drives
- Performing device diagnostics
- Configuring tape media
- About NetBackup volume pools
- About WORM media
- About adding volumes
- Configuring media settings
- Media settings options
- Media type (new media setting)
- Media settings options
- About barcodes
- Configuring barcode rules
- Configuring media ID generation rules
- Adding volumes by using the Actions menu
- Configuring media type mappings
- Managing volumes
- About exchanging a volume
- About frozen media
- About injecting and ejecting volumes
- About rescanning and updating barcodes
- About labeling NetBackup volumes
- About moving volumes
- About recycling a volume
- Managing volume pools
- Managing volume groups
- Inventorying robots
- About showing a robot's contents
- About updating the NetBackup volume configuration
- About the vmphyinv physical inventory utility
- Configuring storage units
- About the Storage utility
- Creating a storage unit
- About storage unit settings
- Absolute pathname to directory or absolute pathname to volume setting for storage units
- Maximum concurrent jobs storage unit setting
- Staging backups
- Creating a basic disk staging storage unit
- Configuring storage unit groups
- Section IV. Configuring storage lifecycle policies (SLPs)
- Configuring storage lifecycle policies
- Storage operations
- Index From Snapshot operation in an SLP
- Snapshot operation in an SLP
- Retention types for SLP operations
- Capacity managed retention type for SLP operations
- Storage lifecycle policy options
- Using a storage lifecycle policy to create multiple copies
- Storage lifecycle policy versions
- Section V. Configuring backups
- Creating backup policies
- Planning for policies
- Policy Attributes tab
- Policy storage (policy attribute)
- Policy volume pool (policy attribute)
- Take checkpoints every __ minutes (policy attribute)
- Backup Network Drives (policy attribute)
- Cross mount points (policy attribute)
- Encryption (policy attribute)
- Collect true image restore information (policy attribute) with and without move detection
- Use Accelerator (policy attribute)
- Enable optimized backup of Windows deduplicated volumes
- Use Replication Director (policy attributes)
- Schedule Attributes tab
- Type of backup (schedule attribute)
- Frequency (schedule attribute)
- Multiple copies (schedule attribute)
- Retention (schedule attribute)
- Media multiplexing (schedule attribute)
- Start Window tab
- Include Dates tab
- How open schedules affect calendar-based and frequency-based schedules
- About the Clients tab
- Backup Selections tab
- Adding backup selections to a policy
- Verifying the Backup Selections list
- Pathname rules for UNIX client backups
- About the directives on the Backup Selections list
- ALL_LOCAL_DRIVES directive
- Files that are excluded from backups by default
- Disaster Recovery tab
- Active Directory granular backups and recovery
- Synthetic backups
- Using the multiple copy synthetic backups method
- Protecting the NetBackup catalog
- Parts of the NetBackup catalog
- Protecting the NetBackup catalog
- Archiving the catalog and restoring from the catalog archive
- Estimating catalog space requirements
- About the NetBackup relational database
- About the NetBackup relational database (NBDB) installation
- Using the NetBackup Database Administration utility on Windows
- Using the NetBackup Database Administration utility on UNIX
- Post-installation tasks
- About backup and recovery procedures
- Managing backup images
- Creating backup policies
- Section VI. Deployment Management
- Deployment Management
- Adding or changing schedules in a deployment policy
- Deployment Management
- Section VII. Configuring replication
- About NetBackup replication
- About NetBackup Auto Image Replication
- Viewing the replication topology for Auto Image Replication
- About the storage lifecycle policies required for Auto Image Replication
- Removing or replacing replication relationships in an Auto Image Replication configuration
- About NetBackup replication
- Section VIII. Monitoring and reporting
- Monitoring NetBackup activity
- About the Jobs tab
- About the Daemons tab
- About the Processes tab
- About the Drives tab
- About the jobs database
- About pending requests and actions
- Reporting in NetBackup
- Using the Logging Assistant
- Monitoring NetBackup activity
- Section IX. Administering NetBackup
- Management topics
- Accessing a remote server
- Using the NetBackup Remote Administration Console
- Run-time configuration options for the NetBackup Administration Console
- About improving NetBackup performance
- About adjusting time zones in the NetBackup Administration console
- Alternate server restores
- About performing alternate server restores
- Managing client backups and restores
- About client-redirected restores
- Powering down and rebooting NetBackup servers
- About Granular Recovery Technology
- About configuring Services for Network File System (NFS) on Windows 2012, 2012 R2, or 2016
- About configuring Services for Network File System (NFS) on Windows 2008 and 2008 R2
Accelerator forced rescan option (schedule attribute)
The policy Schedules tab contains an option called . This option creates a checksum of the content of each file during backup. It uses the checksums for change detection. It provides a safety net by establishing a new baseline for the next Accelerator backup.
Note:
The following information is only applicable to Files and Folder (Unix/Windows) backups and NDMP backups. The Accelerator forced rescan schedule is not necessary for other backup types such as VMware and Hyper-V.
The
option detects the following events:The file's data changes but the file's metadata does not change.
The file's metadata becomes corrupted such that it does not indicate that the file has changed.
A malicious user or application changes the file's metadata such that it does not indicate that the file has changed.
Note:
If Accelerator forced rescan is enabled, NetBackup uses the Windows change journal to help determine if a file has changed. NetBackup also examines the file system metadata for each file to help detect which files have changed.
For the most efficient use of Accelerator, Accelerator policies must include at least two full-backup schedules: one full schedule with the Table: Required full-backup schedules for each Accelerator policy.
option disabled, and another full schedule with enabled. SeeTable: Required full-backup schedules for each Accelerator policy
Full backup schedules | Notes on schedule frequency |
---|---|
First schedule: disabled | Configure this schedule to run most of your Accelerator full backups. |
Second schedule: enabled | Configure this schedule to run less often than the first full-backup schedule. For example: If the first full-backup schedule runs weekly, run the second schedule (with the option enabled) every few months. However, the best frequency for this schedule depends upon your environment.Note: If the policy has no schedule that enables the option, all full backups automatically enable that option and backup performance is reduced. |
Note the following about the
option:The Attributes tab is not selected.
option is grayed out if the option on theBecause of the checksum processing on the client, this option reduces backup speed as compared to the
option on its own. The speed reduction depends on the client's configuration and its current processing load. If the client is busy with many jobs when Accelerator backup begins, checksum processing can reduce backup speed.If the Windows volume is not NTFS or ReFS, and the volume has no full backup schedule that is configured with the
option, note: NetBackup uses on every full backup. The option is not enabled in the schedule but is in fact used, as indicated in the NetBackup log messages. This option may reduce the speed of the backup as compared to the previous backups that did not use .See Table: Required full-backup schedules for each Accelerator policy for recommended full-backup schedules.
For an MS-Windows or Standard policy (to back up files and folders), all the data on the client is read. However, NetBackup sends only the changed data over the network to be included in the backup image. Sending only the changed data is similar to a regular Accelerator full backup. Thus, for an Accelerator forced rescan backup, the optimization percentage is similar to a regular Accelerator full backup. Note that the duration of the backup falls somewhere between a non-Accelerator full backup and a regular Accelerator full backup.