Hard Disk Backup Restore Test

All there is to test is to check that the MD5 checksums of the source and backup files are the same.

  • Attach the external USB drive.

  • Right-click the X: drive and select Unlock Drive.

  • Type the password and click Unlock.

  • Enter the following commands at a PowerShell Command Prompt.

    net use A: \\SMRU-HyperV01\Archive$ /Persistent:No              # Archive$ share
net use Q: \\TBHFWS-IT02\VirtualBox$ /Persistent:No             # VirtualBox$ share
net use V: \\TBHFWS-IT01\VirtualBox$ /Persistent:No             # VirtualBox$ share
net use W: \\SMRU-HyperV01\Windows$ /Persistent:No              # Window$ share
# Find largest file.
$LargeFiles = Get-ChildItem -File -Path "X:\" -Recurse |
    Select-Object -Property Length, FullName |
    Sort-Object -Descending -Property Length |
    Select -First 5
$LargeFiles
# Get the original source file name.
$SourceFile = $LargeFiles[0].FullName -replace "^.", "A"        # Archive$ share
$SourceFile = $LargeFiles[0].FullName -replace "^.", "Q"        # VirtualBox$ share
$SourceFile = $LargeFiles[0].FullName -replace "^.", "V"        # VirtualBox$ share
$SourceFile = $LargeFiles[0].FullName -replace "^.", "W"        # Windows$ share
$SourceFile
# Get the backup file name.
$BackupFile = $LargeFiles[0].FullName
$BackupFile
# Calculate MD5 checksums.
Get-FileHash -Algorithm MD5 -Path $SourceFile
Get-FileHash -Algorithm MD5 -Path $BackupFile

  • Eject the X: drive.