Compacting Hyper-V VHDX Files of Ubuntu Linux VMs

Compacting aka Compressing Hyper-V VHDX Files of Ubuntu Linux VMs.md

• Compacting aka Compressing Hyper-V VHDX Files of Ubuntu Linux VMs https://helgeklein.com/blog/faster-trimming-compacting-hyper-v-ubuntu-vms/

Linux

# Optional CRON
crontab -e
0 0 1 * * PATH='/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin' fstrim -v / >> /var/log/cron-fstrim.txt 2>&1

# This is FAAAST
sudo fstrim -v /

# next
sudo shutdown now

PowerShell - Hyper-V

• -Path ?? "D:\HYPER-V\VM_SRV3"
• -Filter ?? "*.vhdx"

# If VM is OFF or SAVED
$Path = "D:\HYPER-V\VM_SRV2_old"; $Filter = "*.vhdx"; gci -File -Filter $Filter -Path $Path -Recurse | % {Mount-VHD $_.FullName -ReadOnly; Optimize-VHD $_.FullName -Mode full; Dismount-VHD $_.FullName};

# If a virtual machine is started, it will be stopped and then started
.to do..