about_LogConfigurationLoggingSnapin

All commands in this snap-in have the noun prefixed with 'Log'.

The Configuration Logging Service PowerShell snap-in enables both local 
and remote administration of the Configuration Logging Service.

The Configuration Logging Service logs configuration changes or  
administrator requested state changes made to the site. Configuration 
Logging can be configured, site wide, to be mandatory or optional. If  
mandatory logging is selected, then any attempts to change site  
configuration or state when the logging mechanism is unavailable  
are denied.

The Configuration Logging Service stores information about the logged 
changes in a database which can be configured to be separate from  
the site database.

The snap-in provides storage and configuration of these entities:

Site 
    The Configuration Logging Site object holds global settings which 
    control the behaviour of the Configuration Logging Service. The site 
    object can be configured by the Set-LogSite cmdlet. The properties of 
    the site object are returned by the Get-LogSite cmdlet.

High Level Operations 
    A high level operation object represents a logged configuration change  
    performed from Desktop Studio, Desktop Director or a PowerShell Script.

    The XenDesktop consoles log high level operations when:

      1) Executing operations which performs configuration changes. 
      2) Executing operations which performs administration related  
         activities which may affect site configuration.

   PowerShell scripts which carry out customized configuration changes can 
   also log high level operations via cmdlets Start-LogHighLevelOperation  
   and Stop-LogHighLevelOperation.

Low Level Operations 
    A low level operation object represents a logged configuration change 
    performed by a service. One or more low level operation objects are  
    used to record the actions performed by a services in order to fulfil 
    a high level operation initiated from the consoles, or from PowerShell 
    scripts.

    Low level operations in the system are returned by cmdlet  
    Get-LogLowLevelOperation.

Operation Details 
    A low level operation performed by a service can affect a number of  
    individual objects, or a number of properties on an object. An operation 
    detail log records each individual change to an object. This includes  
    the creation and deletion of the object, as well as changes to  
    individual properties of the object.

    One or more operation detail objects are used to record specific changes to 
    each object that is affected by a low level service operation.

    Operation details are included in the data returned from 
    the Get-LogLowLevelOperation cmdlet.

High Level Operations, Low Level Operations and Operation Details are  
arranged in a hierarchy. A High Level Operation can have multiple 
Low Level Operations, and each Low Level Operation can have multiple 
Operation Details.

Setting up a separate logging database 
-------------------------------------- 
After creating the database on the database server, the logging database  
can be setup and configured for use by:

  1) Generating the database schema, and applying it the logging database 
  2) Configuring the configuration logging service to use the new logging database.

The logging database schema can be generated from the Get-LogDBSchem cmdlet, 
as illustrated below: 
   Get-LogDBSchema -DatabaseName "loggingDB" 
                   -ServiceGroupName "service group name"  
                   -ScriptType Database  
                   -LocalDatabase:$LocalDB 
                   -DataStore Logging

The configuration logging service can be configured to use the logging  
database with the Set-LogDBConnection cmdlet, as illustrated below: 
   Set-LogDBConnection -DataStore Logging -DBConnection $null 
   Set-LogDBConnection -DataStore Logging -DBConnection "new logging db connection string"

 o The 'State' setting allows configuration logging to be disabled, enabled, 
   or made mandatory.

 o The 'Locale' setting specifies the language in which configuration 
   logging data text will be stored.