PowerShell RoboCopy 从一台服务器到另一台服务器的特定文件

Question

Consider a scenario:

1. Server A has one File_Folder where there are 100K + files, and some files might be super huge
2. I have a .csv File for each user(which has a complete set of files list to be copied from Server A File_Folder) to Server B(where there is a directory for this each User)

My logic is 1) Read each CSV files for each user 1 by 1 2) put the list for RoboCopy to copy files from Server A to Server B each user folder 3) it works for me but it is super slow. I want to make it faster.

Note: Mandatory to use PowerShell

My Code look like this

$Get_CSV_File_INFO = @(Get-Content $Full_CSV_Path )
$SourcePath = "z:\"

foreach($a in $Get_CSV_File_INFO)
    {

    if($a -match '.zip')
     {
     $RS_Report_Name.add($a) |Out-Null
     }
}

$RS_Report_Name | % { Robocopy $SourcePath  $path $_} | Out-Null

Destionation Path is like Y:\\UserA, Y:\\UserB etc.....

Any suggestion might help.

I am not logging and not showing any output; it improved the speed but still Copying total of "2.57 MB" files took around 9 minutes which is not good in a real life scenario.

Answer 1

Assuming $RS_Report_Name is an array filtered to only the files you want to copy changing the robocopy to copy all files instead of one by one should have a big impact.

robocopy $SourcePath $path $RS_Report_Name

If that still exceeds the max command length, split the array into smaller groups say 10-50 and run Robocopy on each.

Answer 2

Thanks Matthew Wetmore for the suggestion to run PowerShell Script on Destination server and Thanks Travis for the Suggestions to divide the arraylist

$Report_array2 = $Report_array[$Initial_Counter .. $Counter]

Robocopy "$SourcePath" "$path" $Report_array2 /MT /Z |out-Null

Also I use /MT for Multi Threading and /Z(Restart Mode) performance increased from Minutes to few Seconds