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NVM Express (NVMe) or Non-Volatile Memory Host Controller Interface Specification (NVMHCIS) is an open, logical-device interface specification for accessing a computer's non-volatile storage media usually attached via the PCI Express bus.
Non-volatile memory (NVM) or non-volatile storage is a type of computer memory that can retain stored information even after power is removed. In contrast, volatile memory needs constant power in order to retain data.
[1] [2] The Linux 4.4 kernel is an example of an operating system kernel that supports open-channel SSDs which follow the NVM Express specification. The interface used by the operating system to access open-channel solid state drives is called LightNVM. [3] [4] [5]
The specification would be based on the PCI Express interface and NVM Express protocol. On 18 April 2017 the CompactFlash Association published the CFexpress 1.0 specification. [2] Version 1.0 will use the XQD form-factor (38.5 mm × 29.8 mm × 3.8 mm) with two PCIe 3.0 lanes for speeds up to 2 GB/s. NVMe 1.2 is used for low-latency access, low ...
Name Based in Status Manufactures NVMe Controllers Manufactures SATA Controllers Manufactures CF & SD Controllers ; Fusion-io [1] Acquired by SanDisk then Western Digital: United States
This page was last edited on 7 December 2024, at 15:59 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
Windows 8.1 and later Windows operating systems support the TRIM command for NVM Express SSDs. Microsoft has released an update for Windows 7 that adds NVM Express support including TRIM for PCIe SSDs. [45] [46] TRIM is known to be supported for ReFS and NTFS, both of which implement a DisableDeleteNotify switch for disabling it. [47]
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