function Copy-Stuff
    {
        param([string] $OldFileBasename,
              [string] $DestinationDrive)

        $CurrentFile = "${OldFileBasename}-" + $Date.ToString('yyyy-MM-dd') + $Extension

        Copy-Item -ErrorAction SilentlyContinue -Path $SourceDir\$OldOriginalName -Destination $DestinationDrive\database\backup\$CurrentFile

        if (-not $?)
            {
                Add-Content C:\database\backup.log "`rError copying $BackupFolder\$OldOriginalName to $DestinationDrive\database\backup\$CurrentFile"
            }
        else
            {
                Write-Host -Fore Green "Successfully copied $BackupFolder\$OldOriginalName to $DestinationDrive\database\backup\$CurrentFile"
                Add-Content C:\database\backup.log "`rBackup created $DestinationDrive\database\backup\$CurrentFile"
            }
        $OldDate = $Date - [timespan] '10.0:0:0'
        $OldDateString = $OldDate.ToString('yyyy-MM-dd')
        $FileToDelete = "$DestinationDrive\database\backup\${OldFileBasename}-${OldDateString}${Extension}"

        if (Test-Path -PathType Leaf $FileToDelete)
            {
             Remove-Item $FileToDelete
             if (-not $?)
                    {
                        Add-Content C:\database\backup.log "`rFailed to delete $FileToDelete ($Date)"
                    }

             else
                {
                    Add-Content C:\database\backup.log "`rSuccessfully deleted $FileToDelete ($Date)"
                    Write-Host -Fore Green "Successfully deleted $FileToDelete"
                }
            }
        else
            {
                Add-Content C:\database\backup.log "`rFile not found $FileToDelete ($Date)"

                Write-Host -Fore red "Did not find a 10 days old backup (looked for '$FileToDelete')"
            }
    }

Set-StrictMode -Version Latest
$ErrorActionPreference = 'Stop'
$Log = 'C:\database\backup.log'
$SourceDir    = 'C:\Database'
$BackupFolder = 'C:\Database\database_backup'
$Date         = Get-Date
$Extension    = '.accdb'
$OldOriginalName = 'MainDataStore.accdb'
Copy-Stuff 'MainDataStore' 'C:'
Copy-Stuff 'MainDataStore' 'B:'
Copy-Stuff 'MainDataStore' 'E:'
$OldOriginalName = 'MainDataStore_be.accdb'
Copy-Stuff 'MainDataStore_be' 'C:'
Copy-Stuff 'MainDataStore_be' 'B:'
Copy-Stuff 'MainDataStore_be' 'E:'