Document Details

Set File Folder Backup Policy
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Sad Tux - Windows bias detected
This page contains Windows bias

About This Page

This page is part of the Azure documentation. It contains code examples and configuration instructions for working with Azure services.
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Bias Analysis

Detected Bias Types
powershell_heavy
windows_tools
missing_linux_example
windows_first
Summary
The documentation exclusively provides a PowerShell script sample and instructions for managing backup policies using the MARS agent, which is a Windows-specific tool. There are no examples, instructions, or references for Linux environments, nor are Linux-compatible tools or scripting languages mentioned. The documentation assumes a Windows context throughout.
Recommendations
  • Add equivalent script samples for Linux environments, using Bash or Python.
  • Mention and provide guidance for Linux-compatible backup tools (e.g., rsync, cron, Azure CLI, etc.) if supported.
  • Clarify platform prerequisites and limitations at the top of the page.
  • If the MARS agent is Windows-only, explicitly state this and link to Linux backup solutions.
  • Provide parity in documentation structure and detail for Linux users, including example commands and automation patterns.
GitHub Create Pull Request

Scan History

Date Scan Status Result
2026-01-12 00:00 #99 completed Biased Biased
2026-01-11 06:20 #98 completed Biased Biased
2026-01-10 00:00 #92 completed Clean Clean
2026-01-06 22:28 #78 completed Clean Clean
2025-12-29 18:00 #48 cancelled Biased Biased
2025-12-15 00:00 #7 completed Clean Clean
2025-12-14 05:05 #6 completed Clean Clean

Flagged Code Snippets

<#

.SYNOPSIS
 Modify file folder policy

.DESCRIPTION
 Modify file folder policy

.ROLE
Administrators

#>
param (
    [Parameter(Mandatory = $true)]
    [string[]]
    $filePath,
    [Parameter(Mandatory = $true)]
    [string[]]
    $daysOfWeek,
    [Parameter(Mandatory = $true)]
    [string[]]
    $timesOfDay,
    [Parameter(Mandatory = $true)]
    [int]
    $weeklyFrequency,

    [Parameter(Mandatory = $false)]
    [int]
    $retentionDays,

    [Parameter(Mandatory = $false)]
    [Boolean]
    $retentionWeeklyPolicy,
    [Parameter(Mandatory = $false)]
    [int]
    $retentionWeeks,

    [Parameter(Mandatory = $false)]
    [Boolean]
    $retentionMonthlyPolicy,
    [Parameter(Mandatory = $false)]
    [int]
    $retentionMonths,

    [Parameter(Mandatory = $false)]
    [Boolean]
    $retentionYearlyPolicy,
    [Parameter(Mandatory = $false)]
    [int]
    $retentionYears
)
Set-StrictMode -Version 5.0
$env:PSModulePath = (Get-ItemProperty -Path 'HKLM:\System\CurrentControlSet\Control\Session Manager\Environment' -Name PSModulePath).PSModulePath
Import-Module MSOnlineBackup
$ErrorActionPreference = "Stop"
Try {
    $timesOfDaySchedule = @()
    foreach ($time in $timesOfDay) {
        $timesOfDaySchedule += ([TimeSpan]$time)
    }
    $daysOfWeekSchedule = @()
    foreach ($day in $daysOfWeek) {
        $daysOfWeekSchedule += ([System.DayOfWeek]$day)
    }

    $schedule = New-OBSchedule -DaysOfWeek $daysOfWeekSchedule -TimesOfDay $timesOfDaySchedule -WeeklyFrequency $weeklyFrequency
    if ($daysOfWeekSchedule.Count -eq 7) {
        if ($retentionWeeklyPolicy -and $retentionMonthlyPolicy -and $retentionYearlyPolicy) {
            $retention = New-OBRetentionPolicy -RetentionDays $retentionDays -RetentionWeeklyPolicy:$true -WeekDaysOfWeek $daysOfWeekSchedule -WeekTimesOfDay $timesOfDaySchedule -RetentionWeeks $retentionWeeks -RetentionMonthlyPolicy:$true -MonthDaysOfWeek $daysOfWeekSchedule -MonthTimesOfDay $timesOfDaySchedule -RetentionMonths $retentionMonths -RetentionYearlyPolicy:$true -YearDaysOfWeek $daysOfWeekSchedule -YearTimesOfDay $timesOfDaySchedule -RetentionYears $retentionYears
        }
        elseif ($retentionWeeklyPolicy -and $retentionMonthlyPolicy) {
            $retention = New-OBRetentionPolicy -RetentionDays $retentionDays -RetentionWeeklyPolicy:$true -WeekDaysOfWeek $daysOfWeekSchedule -WeekTimesOfDay $timesOfDaySchedule -RetentionWeeks $retentionWeeks -RetentionMonthlyPolicy:$true -MonthDaysOfWeek $daysOfWeekSchedule -MonthTimesOfDay $timesOfDaySchedule -RetentionMonths $retentionMonths
        }
        elseif ($retentionWeeklyPolicy -and $retentionYearlyPolicy) {
            $retention = New-OBRetentionPolicy -RetentionDays $retentionDays -RetentionWeeklyPolicy:$true -WeekDaysOfWeek $daysOfWeekSchedule -WeekTimesOfDay $timesOfDaySchedule -RetentionWeeks $retentionWeeks -RetentionYearlyPolicy:$true -YearDaysOfWeek $daysOfWeekSchedule -YearTimesOfDay $timesOfDaySchedule -RetentionYears $retentionYears
        }
        elseif ($retentionYearlyPolicy -and $retentionMonthlyPolicy) {
            $retention = New-OBRetentionPolicy -RetentionDays $retentionDays -RetentionMonthlyPolicy:$true -MonthDaysOfWeek $daysOfWeekSchedule -MonthTimesOfDay $timesOfDaySchedule -RetentionMonths $retentionMonths -RetentionYearlyPolicy:$true -YearDaysOfWeek $daysOfWeekSchedule -YearTimesOfDay $timesOfDaySchedule -RetentionYears $retentionYears
        }
        elseif ($retentionWeeklyPolicy) {
            $retention = New-OBRetentionPolicy -RetentionDays $retentionDays -RetentionWeeklyPolicy:$true -WeekDaysOfWeek $daysOfWeekSchedule -WeekTimesOfDay $timesOfDaySchedule -RetentionWeeks $retentionWeeks
        }
        elseif ($retentionMonthlyPolicy) {
            $retention = New-OBRetentionPolicy -RetentionDays $retentionDays -RetentionMonthlyPolicy:$true -MonthDaysOfWeek $daysOfWeekSchedule -MonthTimesOfDay $timesOfDaySchedule -RetentionMonths $retentionMonths
        }
        elseif ($retentionYearlyPolicy) {
            $retention = New-OBRetentionPolicy -RetentionDays $retentionDays -RetentionYearlyPolicy:$true -YearDaysOfWeek $daysOfWeekSchedule -YearTimesOfDay $timesOfDaySchedule -RetentionYears $retentionYears
        }
        else {
            $retention = New-OBRetentionPolicy -RetentionDays $retentionDays
        }
    }
    else {
        if ($retentionWeeklyPolicy -and $retentionMonthlyPolicy -and $retentionYearlyPolicy) {
            $retention = New-OBRetentionPolicy -RetentionWeeklyPolicy:$true -WeekDaysOfWeek $daysOfWeekSchedule -WeekTimesOfDay $timesOfDaySchedule -RetentionWeeks $retentionWeeks -RetentionMonthlyPolicy:$true -MonthDaysOfWeek $daysOfWeekSchedule -MonthTimesOfDay $timesOfDaySchedule -RetentionMonths $retentionMonths -RetentionYearlyPolicy:$true -YearDaysOfWeek $daysOfWeekSchedule -YearTimesOfDay $timesOfDaySchedule -RetentionYears $retentionYears
        }
        elseif ($retentionWeeklyPolicy -and $retentionMonthlyPolicy) {
            $retention = New-OBRetentionPolicy -RetentionWeeklyPolicy:$true -WeekDaysOfWeek $daysOfWeekSchedule -WeekTimesOfDay $timesOfDaySchedule -RetentionWeeks $retentionWeeks -RetentionMonthlyPolicy:$true -MonthDaysOfWeek $daysOfWeekSchedule -MonthTimesOfDay $timesOfDaySchedule -RetentionMonths $retentionMonths
        }
        elseif ($retentionWeeklyPolicy -and $retentionYearlyPolicy) {
            $retention = New-OBRetentionPolicy -RetentionWeeklyPolicy:$true -WeekDaysOfWeek $daysOfWeekSchedule -WeekTimesOfDay $timesOfDaySchedule -RetentionWeeks $retentionWeeks -RetentionYearlyPolicy:$true -YearDaysOfWeek $daysOfWeekSchedule -YearTimesOfDay $timesOfDaySchedule -RetentionYears $retentionYears
        }
        elseif ($retentionYearlyPolicy -and $retentionMonthlyPolicy) {
            $retention = New-OBRetentionPolicy -RetentionMonthlyPolicy:$true -MonthDaysOfWeek $daysOfWeekSchedule -MonthTimesOfDay $timesOfDaySchedule -RetentionMonths $retentionMonths -RetentionYearlyPolicy:$true -YearDaysOfWeek $daysOfWeekSchedule -YearTimesOfDay $timesOfDaySchedule -RetentionYears $retentionYears
        }
        elseif ($retentionWeeklyPolicy) {
            $retention = New-OBRetentionPolicy -RetentionWeeklyPolicy:$true -WeekDaysOfWeek $daysOfWeekSchedule -WeekTimesOfDay $timesOfDaySchedule -RetentionWeeks $retentionWeeks
        }
        elseif ($retentionMonthlyPolicy) {
            $retention = New-OBRetentionPolicy -RetentionMonthlyPolicy:$true -MonthDaysOfWeek $daysOfWeekSchedule -MonthTimesOfDay $timesOfDaySchedule -RetentionMonths $retentionMonths
        }
        elseif ($retentionYearlyPolicy) {
            $retention = New-OBRetentionPolicy -RetentionYearlyPolicy:$true -YearDaysOfWeek $daysOfWeekSchedule -YearTimesOfDay $timesOfDaySchedule -RetentionYears $retentionYears
        }
    }

    $oldPolicy = Get-OBPolicy
    if ($oldPolicy) {
        $ospec = Get-OBFileSpec $oldPolicy

        $p = Remove-OBFileSpec -FileSpec $ospec -Policy $oldPolicy -Confirm:$false

        $fileSpec = New-OBFileSpec -FileSpec $filePath

        Add-OBFileSpec -Policy $p -FileSpec $fileSpec -Confirm:$false
        Set-OBSchedule -Policy $p -Schedule $schedule -Confirm:$false
        Set-OBRetentionPolicy -Policy $p -RetentionPolicy $retention -Confirm:$false
        Set-OBPolicy -Policy $p -Confirm:$false
        $p
    }
    else {
        $policy = New-OBPolicy
        $fileSpec = New-OBFileSpec -FileSpec $filePath
        Add-OBFileSpec -Policy $policy -FileSpec $fileSpec
        Set-OBSchedule -Policy $policy -Schedule $schedule
        Set-OBRetentionPolicy -Policy $policy -RetentionPolicy $retention
        Set-OBPolicy -Policy $policy -Confirm:$false
    }
}
Catch {
    if ($error[0].ErrorDetails) {
        throw $error[0].ErrorDetails
    }
    throw $error[0]
}