# Volume Management Device (VMD) Architecture reference: Feex Also called Volume Management Device Intel VMD, Volume Management Device, provides a platform interface for managing supported PCIe storage devices. It is a storage topology and driver feature, not an instruction-set or security protection by itself. ## What you need to know Intel VMD, Volume Management Device, provides a platform interface for managing supported PCIe storage devices. It is a storage topology and driver feature, not an instruction-set or security protection by itself. ## How it works VMD places supported PCIe storage resources behind a managed device interface so the appropriate software stack can handle functions such as enumeration and supported management behavior. The exact RAID and hot-plug capabilities depend on the platform and software product, including licensing where applicable. ## Where it is useful An OS installer may need the manufacturer's supported storage driver to see drives presented through a VMD configuration. An existing installation can depend on that controller mode and driver to reach its boot volume. ## How to check support and enablement Inspect the exact system's firmware storage configuration and OS controller/driver information. Use the OEM's documented installation or migration procedure, including backups and recovery media, before changing a boot-storage mode. Platform features can depend on the motherboard, chipset, firmware provisioning, drivers and product tier. The CPU specification is one input, not a complete description of the assembled computer or its active configuration. ## What the feature does not establish VMD support does not establish that RAID is configured, that every SSD is eligible or that a particular VROC feature is licensed. Toggling storage-controller mode can make an installed OS unable to boot and is not a harmless discovery step. ## Compatibility and performance in practice Before changing firmware, management or boot-storage settings, identify the exact system and follow its manufacturer's supported procedure. Record the existing configuration and preserve recovery access. A generic feature article cannot supply a universal firmware menu sequence. ## A practical verification checklist 1. Record the exact processor or platform model and the application, OS and runtime versions involved. Preserve the wording of the actual error or requirement. 2. Check the manufacturer reference for that exact model, then inspect the effective capability and enabled state in the environment where the program runs. 3. Compare every requirement of the selected binary or backend. A similarly named feature, alias or broad technology label is not enough. 4. Confirm the application selected the intended implementation. Use its documented diagnostics and a supported fallback when requirements are not met. 5. Make one supported change at a time and repeat the same workload. Keep the original configuration and recovery path available. ## If the feature is listed but software cannot use it Start with the exact failing component. A hardware database describes recorded capability; the operating system or hypervisor can expose a different effective environment. An illegal-instruction error also needs investigation of the actual faulting instruction and binary build, because corruption or an unrelated unsupported instruction can produce a similar symptom. Install the application, driver or runtime version supported for the exact platform, and use the vendor's documented baseline or fallback build if needed. A software update cannot create an instruction that the processor lacks. Firmware and security-policy changes should follow the system manufacturer's procedure and a recovery plan rather than a generic optimization recipe. ## Related features and useful distinctions [VT-d](https://feex.it/wiki/hardware/system/vt-d/) · [IOMMU](https://feex.it/wiki/hardware/system/iommu/) · [Hardware Manageability](https://feex.it/wiki/hardware/system/hardware-manageability/) ## Sources and scope of this explanation [Intel Volume Management Device introduction](https://cdrdv2-public.intel.com/776857/VMD_White_Paper.pdf) · [Intel Virtual RAID on CPU](https://www.intel.com/content/www/us/en/software/virtual-raid-on-cpu-vroc.html) These references establish architectural behavior and software requirements. They do not independently verify every feature value on a linked hardware model page. For model support, use that page's manufacturer evidence and check the effective system configuration. This article does not supply a benchmark, certification or independent review date. ## Related These entities connect to this article. Type is shown on every link. [VT-d: Architecture reference](https://feex.it/wiki/hardware/system/vt-d/)[IOMMU: Architecture reference](https://feex.it/wiki/hardware/system/iommu/)[Hardware Manageability: Architecture reference](https://feex.it/wiki/hardware/system/hardware-manageability/) ## Sources and verification Editorial ownership: Feex. No independent review date is recorded. [How we research](https://feex.it/wiki/research/). - [Intel Volume Management Device introduction ](https://cdrdv2-public.intel.com/776857/VMD_White_Paper.pdf)· VMD device and storage-management architecture. Use the exact OEM procedure for boot-controller configuration changes. - [Intel Virtual RAID on CPU ](https://www.intel.com/content/www/us/en/software/virtual-raid-on-cpu-vroc.html)· Explains the relationship between VROC and VMD. Product generation, supported storage and licensing determine available features. [Report a correction to Feex](https://feex.it/contact/) ## Was this article useful? A yes or no is enough. Pick a reason if you want, or add a short note. Quick facts The short identity of this page. Specs, sources, and the full story stay in the article. --- Source: [Canonical Feex Wiki page](https://feex.it/wiki/hardware/system/volume-management-device/) [Developer guide](https://feex.it/wiki/developers/) | [API policy](https://feex.it/developers/api-policy/) | [Agent guidance](https://feex.it/wiki/llms.txt)