This mode, also called virtual PMem disks (vPMemDisk) mode, is available to any traditional VM and supports any hardware version, including all legacy versions. The NVDIMM device is compatible with latest guest OSes that support persistent memory, for example, Windows 2016.Įach NVDIMM device is automatically stored on the PMem datastore. You can add one or several NVDIMM modules when provisioning the VM.ĮSXi 6.7 or later and have a PMem-aware guest OS. The VM uses the NVDIMM module as a standard byte-addressable memory that can persist across power cycles. In this mode, also called virtual PMem (vPMem) mode, a PMem region can be presented to a VM as a virtual non-volatile dual in-line memory module (NVDIMM) module. Traditional VMs can use fast virtual disks stored on the PMem datastore. PMem-aware VMs can have direct access to persistent memory. Vmware.log files cannot be placed on the PMem datastore.ĮSXi exposes persistent memory to a VM in two different modes. The PMem datastore is used to store virtual NVDIMM devices and traditional virtual disks of a VM. The only operation available to you is monitoring statistics for the PMem datastore. As an administrator, you cannot display the datastore in the Datastores view of the vSphere Client, or perform other regular datastore actions. Traditional datastore tasks do not generally apply to the datastore because the host automatically performs all the required operations on the background. To reduce administrative overhead, the PMem datastore offers a simplified management model. Note: When you manage physical persistent memory, make sure to evacuate all VMs from the host and place the host into maintenance mode.

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