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System Management
The System Management is the central administrative unit for WinCC OA Systems.
Database
NextGen Archiver (NGA)
The NextGenArchive (NGA) for is a archiving solution which extends flexibility while keeping the possibilities and strengths of the current methods. This chapter provides an overview of the NGA feature.
Internal Data Points
_NGA_BackendProfile

System Management
The System Management is the central administrative unit for WinCC OA Systems.
- System management
- Diagnostics
- Reports
- Database
  - Data backup in WinCC OA
  - Supported Database Combinations
    An overview over the possible database combinations within a WinCC OA project.
  - WCCOAtoolCreateDb
  - Upgrading a project using ISO character sets to UTF8 character sets
  - History DB
  - Archive/Export Alerts
  - ASCII Manager
    The ASCII Manager allows you to input and output and thus edit data points and data point types and to configure data points.
  - Online Backup
  - Steps of the online DB backup process
  - Archiving and Compression
  - Data Point Groups
    The main purpose of grouping data points is to simplify selection of datapoints and datapoint elements.
  - PowerConfig Editor
  - RDB Archiving
  - RDB Compression
  - RDB Log
  - HDB/RAIMA - RDB Parallel
  - OLE DB Provider
    OLE DB is a Microsoft specification for accessing data on different computers. It is based on Microsoft's COM technology and is the successor to the older and limited ODBC technology.
  - NextGen Archiver (NGA)
    The NextGenArchive (NGA) for is a archiving solution which extends flexibility while keeping the possibilities and strengths of the current methods. This chapter provides an overview of the NGA feature.
    - General Terms and User Model
    - Requirements and Installation
    - Licensing
      This chapter describes the NGA license options and available package sizes.
    - Deployment Scenarios
    - Configuration
    - InfluxDB®
    - PostgreSQL® Database Overview
    - MS SQL®
    - Redundancy
    - Using a Remote Backend with Encryption
    - Notes and Restrictions
    - Internal Data Points
    - Database Maintenance
      Overview of the database maintenance chapters for the NGA backends.
    - Debug Flags
    - CTRL Functions for NGA Access
    - NextGen Archiver (NGA) - FAQ
- Driver
- Driver IEC
- Driver OPC
- Driver S7
- SmartSCADA
- Permission
- Communication
- Settings

_NGA_BackendProfile

The _NGA_BackendProfile data point is structured as follows (default values based on standard InfluxDB® profile):


Element Name	Type	Default	Description
sendWithId	bool	true	Backend supports data with DP ID.
sendDpWithName	bool	true	Backend supports data with DP name.
sendDpWithAlias	bool	true	Backend supports DP alias.
supportsMonthsAndYears	bool	false	Backend supports segment duration periods in months and years.
modifiableRetention	bool	true	Retention period can be changed.
modifiableSegmentDuration	bool	false	Segment duration can be changed.
oraNameRestrictions	bool	false	Restrictions for archive group naming (Oracle).
manualSegmentSwitch	bool	false	Manual segment switch possible.
startStopDBProcess	bool	true	DB will be started and stopped automatically by the NGA.
dbSpecific	dyn_string	…	DB- specific settings (defined by backend).
autogenGroupName	bool	true	Archive Group name in DB will be automatically generated from archive group name.
handleRedundancy	bool	false	Database is capable of handling redundancy on its own (redundancy-aware database).
displayName	langString		Name of the profile in the user interface.
genericSettingsKeyValues			For internal purposes.
minimumSegmentDuration			Specifies the minimum segment duration. For segment duration, see chapter Backend Profile - Time Parameters.