NAME
nvd – NVM Express disk driver
SYNOPSIS
device nvme device nvd
DESCRIPTION
The nvd driver exposes NVM Express (NVMe) namespaces as disks to the kernel disk storage API. It depends on the nvme(4) driver for notification of existing NVMe namespaces and submission of NVM I/O commands.
Device nodes from the nvd driver will have the format /dev/nvdX and are GEOM(4) disks which can be partitioned by geom(8). Note that device nodes from the nvme(4) driver are not GEOM(4) disks and cannot be partitioned.
HARDWARE
The nvd driver supports NVMe storage devices using NVMe namespaces.
LOADER TUNABLES
The following settings can be configured at the loader(8) prompt, or set in loader.conf(5):
- hw.nvd.delete_max
-
System-wide maximum delete size for NVMe devices in bytes. The default is 1GB.
SEE ALSO
HISTORY
The nvd driver first appeared in FreeBSD 9.2.
AUTHORS
The nvd driver was developed by Intel and originally written by Jim Harris ⟨[email protected]⟩, with contributions from Joe Golio at EMC.
This man page was written by Jim Harris ⟨[email protected]⟩.