PowerShell Script to Validate/compare Folder and files of Two servers - powershell

Question

I am trying to get the number of files inside folders and number of folders along with total size. To a certain extent I have achieved that goal but when I am trying it for checking millions of folders/files and their size may be around 1 TB its getting stuck might be getting into infinite lope.
Also I want to compare the two location size and number of files/folder and get output as bollen value. – true if the size and numbers match, false if they don’t.
Below script is what I tried. Can some one help me with the requirement.
$hostnames = Get-Content C:\server.txt
$directory = "D$\logs"
foreach ($hostname in $hostnames){
$Folderitems = (Get-ChildItem -Path "\\$hostname\$directory" -Directory -Recurse -Force).Count
$FileItems = Get-ChildItem -path "\\$hostname\$directory" -recurse
$Measurement = $FileItems | Measure-Object -property length -sum
$colitems = $FileItems | measure-Object -property length -sum
"$hostname,$directory;{0:N2}" -f ($colitems.sum / 1024MB) + "GB;" + $Measurement.count + " files;" + $items +"Folders;"
}

Answer 1

A performance improvement would be to invoke the Get-ChildItem cmdlet only once and use it to filter the Folders using the Where-Object cmdlet:
$FileItems = Get-ChildItem -path "\\$hostname\$directory" -recurse
$Folderitems = $FileItems | Where-Object PsIsContainer
You also calculate the length twice, remove one of these:
$Measurement = $FileItems | Measure-Object -property length -sum
$colitems = $FileItems | measure-Object -property length -sum
Also i want to compare the two location size and number of
files/folder and get output as bollen value.
Which two locations you want to compare? You are iterating over a list of hostnames and don't store any values...
Edit to your comment:
Regarding the comparison part i want to compare the size and number of
files from server1 to server2 for location d$\website. Its just like
same we do right click on folder and see the files and size.
Currently, you are retrieving the items for D$\logs, not D$\website you probably have to change this?!. To compare the results, you have to store them first. I would recommend an array of PSCustomObjects. The structure looks like this (sample output):
Server Sum Count
------ --- -----
YourServer1 88575206 386
YourServer2 88575206 386
And here the script:
foreach ($hostname in $hostnames){
$FileItems = Get-ChildItem -path "\\$hostname\$directory" -recurse
$Folderitems = $FileItems | Where-Object PsIsContainer
$Measurement = $FileItems | Measure-Object -property length -sum
$serverFileMeasurements += [PSCustomObject]#{
Server = $hostname
Sum = $Measurement.Sum
Count = $Measurement.Count
}
}
# assuming there are only two servers:
if ($serverFileMeasurements[0].Count -eq $serverFileMeasurements[1].Count -and
$serverFileMeasurements[0].Sum -eq $serverFileMeasurements[1].Sum)
{
Write-Host $true
}
else
{
Write-Host $false
}