The Enterprise and Data Center Standard Form Factor or EDSFF and previously known as the Enterprise and Data Center SSD Form Factor is a family of
SSD
A solid-state drive (SSD) is a solid-state storage device that uses integrated circuit assemblies to store data persistently, typically using flash memory, and functioning as secondary storage in the hierarchy of computer storage. It is ...
form factors for use in
data centers that is being developed by the Small Form Factor Technology Affiliate technical work group, which is itself under the organizational stewardship of the
Storage Networking Industry Association
The Storage Networking Industry Association (SNIA) is a registered 501(c)(6) non-profit trade association incorporated in December 1997. SNIA has more than 185 unique members, 2,000 active contributing members and over 50,000 IT end users and st ...
.
As a family of form factors, it defines specifications for the mechanical dimensions and electrical interfaces devices should have, to ensure compatibility between disparate hardware manufacturers. The standard is meant to replace the
M.2
M.2, pronounced ''m dot two'' and formerly known as the Next Generation Form Factor (NGFF), is a specification for internally mounted computer expansion cards and associated connectors. M.2 replaces the mSATA standard, which uses the PCI Exp ...
and
U.2
U.2 (pronounced 'u-dot-2'), formerly known as SFF-8639, is a computer interface standard for connecting solid-state drives (SSDs) to a computer. It covers the physical connector, electrical characteristics, and communication protocols.
It was ...
form factors for drives used in data centers.
[
EDSFF SSDs are made in six sizes: E1.L (Long) and E1.S (Short), E2.L and E2.S, and E3.L and E3.S.
Samsung's NGSFF (also known as M.3 or NF1) form factor competes with EDSFF.]
See also
* NVM Express
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 PCI Express (PCIe) bus. The ...
* PCI Express
PCI Express (Peripheral Component Interconnect Express), officially abbreviated as PCIe or PCI-e, is a high-speed serial computer expansion bus standard, designed to replace the older PCI, PCI-X and AGP bus standards. It is the common m ...
References
External links
Solid State Drive Form Factors
on SNIA's website
{{DEFAULTSORT:Enterprise and Data Center Standard Form Factor
Data centers
Computer-related introductions in 2017
Computer connectors