A: The samples are installed under %VDDK_HOME%\samples. You will find examples for C++ and C# for operations like opening disks, reading sectors, and using Changed Block Tracking.
The VMware Virtual Disk Development Kit (VDDK) is a critical, yet often overlooked, software package for any IT professional managing a vSphere environment. If you are involved in backup automation, disaster recovery, storage management, or custom vSphere integrations, you have likely needed to download VMware VDDK at some point.
VDDK is a collection of C/C++ libraries, code samples, utilities, and documentation designed to help developers and administrators create applications that can access and manipulate virtual disk files (VMDK) independently of the guest operating system. In simpler terms, VDDK allows third-party backup solutions (like Veeam, Commvault, or Rubrik) to perform image-level backups, file-level restores, and granular recovery without needing an agent inside every virtual machine.
Despite its importance, finding the correct version and understanding the licensing can be confusing. This article provides a step-by-step guide on how to download VMware VDDK, explains which version you need, and covers installation best practices. download vmware vddk
Go to customerconnect.vmware.com. You will need a free VMware Customer Connect account. If you do not have one, registration takes two minutes.
A: Yes. VDDK can read thin VMDKs and report allocated vs. virtual size. But writing to a thin disk without proper alignment can cause it to thicken. Use the QueryAllocatedBlocks API.
With VMware under Broadcom, the VDDK roadmap has seen some changes, but the SDK remains critical for the ecosystem. In vSphere 8.x and beyond, VMware is investing in improved NVMe over Fabrics support and better TLS 1.3 encryption for VDDK connections. The core process of "download VMware VDDK" is expected to remain free and publicly accessible, as it drives the multi-billion dollar data protection market. A: The samples are installed under %VDDK_HOME%\samples
Broadcom has moved many VMware downloads behind paywalls, but as of 2026, VDDK continues to be available for free to registered users—a testament to its importance as a foundational development tool.
Kai had always liked solving problems. As the site reliability engineer for a small startup, they slept well knowing backups ran like clockwork—until the day the nightly snapshot job failed. Error logs pointed to a corrupted agent; the team needed a fresh toolchain to rebuild the backup pipeline. The one bright hope was the VMware VDDK: the VMware Virtual Disk Development Kit, a set of libraries and utilities that let programs read, write, and snapshot virtual disks.
Kai booted their laptop, cracked knuckles, and began the hunt. They remembered reading that VDDK packages were offered by VMware and required matching the kit version to the vSphere hosts. It felt like archaeology: hunt down the right release notes, find the matching build number, and avoid the trap of installing a version incompatible with the cluster’s ESXi hosts. The VMware Virtual Disk Development Kit (VDDK) is
At the VMware downloads site Kai found a matrix of versions. They compared the cluster’s ESXi version—6.7 U3—and the VDDK compatibility table, then picked the VDDK release that matched. The download page required authentication and an account, so Kai used the team’s shared access. A few clicks later, the tarball arrived.
Inside the archive was a tidy set of components: libraries, a sample vSphere backup utility, and documentation. Kai read the README and found a small warning: “Install matching lib64 paths and set VDDEVEL_HOME.” Following the instructions, they unpacked the kit into /opt/vmware/vddk, adjusted library paths, and ran the included sample utility against a test VM. The program connected, opened the virtual disk, and reported the snapshots—success.
Still cautious, Kai wrote a small wrapper script to integrate VDDK with the company’s backup orchestrator, adding retries and careful logging. The wrapper handled credential rotation and validated snapshot consistency. Overnight, the script ran against a noncritical VM and produced a clean, restorable backup image.
The next day, when the production agent rebuilt the pipeline using the VDDK-based utility, the failure that had kept Kai awake for a week vanished. Restores tested green. The CTO sent a terse, grateful message: “Nice work.” Kai replied with a single line: “Matched versions, proper install, and automated checks.”
Sitting back, Kai realized the work had been more than a download and an install. It had been a lesson in compatibility, careful reading of docs, and conservative testing. The VDDK tarball was just a tool—what mattered was the practice of using it safely. And with that, Kai updated the runbook so the next engineer would find the right download, the right version, and the right steps—no midnight archaeologies required.
