Esxi [hot] Download Vmdk From Datastore 〈PC〉
Connect-VIServer -Server 192.168.1.200 -User root -Password 'P@ssw0rd' Copy-DatastoreItem -Item "[Datastore_SSD_01] Corp-ERP/Corp-ERP-flat.vmdk" -Destination "D:\Recovery\" -Recurse PowerCLI automatically handles the session, retries on failure, and shows a detailed progress bar. It also correctly handles thin disks by copying only the allocated blocks if the destination supports it. By 1:00 AM, the SCP transfer finished. Alex now had the raw VMDK file on a local NTFS drive. Using a free tool like 7-Zip (yes, it can open VMDK files) or OSFMount , Alex extracted the critical database files.
The red light on the server room wall meant trouble. Alex’s phone buzzed: "Legacy ERP VM won't boot. Need the data recovered from the VMDK file now . The datastore is fine, but the VMX is corrupted." esxi download vmdk from datastore
Always shut down the VM or take a snapshot before downloading a VMDK. Copying a live VMDK can result in a crash-consistent (corrupted) file, just like yanking a hard drive out of a running PC. Connect-VIServer -Server 192
The lesson Alex learned: Use the Host Client for small files, SCP for large single files, and PowerCLI for automation. And always remember: never interrupt a VMDK download; it will leave you with a corrupted sparse file and a very long night. Key Takeaways for the Reader: | Method | Best For | Command / Action | | :--- | :--- | :--- | | ESXi Host Client | Files < 1 GB | Storage > Datastore > Download | | SCP (SSH) | Large VMDKs, reliable transfers | scp root@host:"/vmfs/volumes/..." . | | PowerCLI | Automation & scripting | Copy-DatastoreItem | | USB Pass-through | No network available | Attach USB drive directly to ESXi physical host | Alex now had the raw VMDK file on a local NTFS drive
Alex didn't have a vCenter. All that was available was a single ESXi 7.0 host—a yellow-and-black striped server humming in the corner. The problem: How to get a 200 GB VMDK file from the raw datastore onto a laptop with no shared network storage?
Scenario: A junior admin, Alex, needs to retrieve a critical virtual machine disk (VMDK) from a standalone ESXi host because the corporate vCenter Server is down for maintenance.
A warning popped up: "Downloading large files via HTTPS may fail or be slow. Estimated time: 4 hours." The connection was also throttled by the browser. This method works for files under 2 GB, but for a 200 GB production VMDK, it was too risky. Step 2: The SCP Method (The Professional’s Choice) Alex remembered a faster route. ESXi hosts have an SSH daemon (Secure Shell) built-in, though often disabled by default.