Veritas NetBackup™ Administrator's Guide, Volume II
- NetBackup licensing models and the nbdeployutil utility
- About NetBackup licensing models
- nbdeployutil utility options
- Creating and viewing the licensing report
- After creating a traditional licensing report
- After creating a capacity licensing report
- Reconciling the capacity licensing report results
- Additional configuration
- About dynamic host name and IP addressing
- About busy file processing on UNIX clients
- About the Shared Storage Option
- About configuring the Shared Storage Option in NetBackup
- Viewing SSO summary reports
- About the vm.conf configuration file
- Holds Management
- Menu user interfaces on UNIX
- About the tpconfig device configuration utility
- About the NetBackup Disk Configuration Utility
- Reference topics
- Host name rules
- About reading backup images with nbtar or tar32.exe
- Factors that affect backup time
- NetBackup notify scripts
- Media and device management best practices
- About TapeAlert
- About tape drive cleaning
- How NetBackup reserves drives
- About SCSI persistent reserve
- About the SPC-2 SCSI reserve process
- About checking for data loss
- About checking for tape and driver configuration errors
- How NetBackup selects media
- About Tape I/O commands on UNIX
Examine overlap detection by nbdeployutil
On NetBackup clients 8.1 or later, when you run nbdeployutil, either manually or using the incremental reporting feature, overlapping backup selection data is detected and automatically adjusted for the overlapping policies in the Charged Size column of the report. nbdeployutil detects if the same data is backed up by multiple policies of the same policy type and deducts the charged size for overlapping backup selections. This feature ensures that you are charged optimally for capacity licensing and are not charged for duplicate backed up data.
To enable overlap detection, run the nbdeployutil report with the following option:
Table: Option for overlap details
Command line option | Description |
---|---|
--overlap-details | Use this option while generating the capacity licensing report to display duplicate backup selections in the Duplicate Selections column of the report. Note: Use this option only for ASCII or English-only characters in the backup selection data. The following disclaimer is displayed when you run this option: The overlap-details flag creates the Duplicate Selection column with data, which can be potentially sensitive. |
For example, if you have the following backup policies for policy type Microsoft SQL Server:
Table: Policies
Policy1 | Policy2 |
---|---|
Backup Selection:
| Backup Selection:
|
Here MSSQLSERVER is the name of instance and DB1, DB2, DB3 are the databases. The DB file DB2 is common in both policies Policy1 and Policy2. nbdeployutil detects the overlap and displays in the report.
Table: Sample report columns
Policy Name | Accuracy | Accuracy Comment | Overlap Size (GB) | Duplicate Selection | Total (Readable) Size (GB) | Charged Size (GB) |
---|---|---|---|---|---|---|
Policy1 | OK | 0 | 2.8 | 2.8 | ||
Policy2 | OK | Overlap detected for the policy and deducted from the Charged Size | 1.4 | "MSSQLSERVER"/<PLACE_HOLDER>/"DB2"/ | 2.8 | 1.4 |
In case of Availability Group (AG) the <PLACE_HOLDER> contains the AG name.