.bak files from one server to another within the same domain and on a high-bandwidth connection, this PowerShell + robocopy script is optimized for speed and reliability.function Copy-LatestBackupFast {
param (
[string]$SourceDir,
[string]$DestDir
)
# Ensure destination exists
if (!(Test-Path $DestDir)) {
New-Item -ItemType Directory -Path $DestDir -Force | Out-Null
}
# Get the latest .bak file
$Latest = Get-ChildItem -Path $SourceDir -Filter *.bak | Sort-Object LastWriteTime -Descending | Select-Object -First 1
if ($Latest) {
$SourcePath = $Latest.FullName
$FileName = $Latest.Name
# robocopy works on directories, so we pass the directory and file
$SourceFolder = Split-Path $SourcePath
$cmd = @(
"robocopy",
"`"$SourceFolder`"",
"`"$DestDir`"",
"`"$FileName`"",
"/COPY:D", # Copy data only
"/NFL", "/NDL", # No file/dir listing
"/NP", # No progress
"/NJH", "/NJS", # No job header/summary
"/R:0", "/W:0", # No retries/wait
"/MT:32" # Multi-threaded copy
) -join ' '
Write-Host "Copying: $FileName from $SourceFolder to $DestDir ..."
Invoke-Expression $cmd
} else {
Write-Warning "No .bak files found in $SourceDir"
}
}
# === Copy Each Backup Set ===
Copy-LatestBackupFast "\\node1\adads" "\\node\Backup\addad"
Copy-LatestBackupFast "\\node2\aff" "\\node\Backup\addd"
Copy-LatestBackupFast "\\node3\addd" "\\node\Backup\asdref"
Copy-LatestBackupFast "\\node3\addd" "\\node\Backup\adeedd"
Copy-LatestBackupFast "\\node3\eeww" "\\node\Backup\addd"