NGFF (Next Generation Form Factor), as the name suggests, is the standard of Form Factor. It is tied with NGFF for 2.5 "instead of PCIe. (In addition, NGFF has now been renamed M.2. We 'd better keep pace with the times and change it to M.2 .)PCIe is a bus standard, tied with SATA.NVMe is a new transmission standard for hard disks and replaces the current AHCI.Why do people always associate NGFF/M.2 with PCIe/NVMe? This is because the SSD in
product.The NVMe controller interface is particularly well-developed for PCI Express interfaces and NAND Flash features, and NVMe can handle the highest 6萬4千個 command Queues command column at the same time, each instruction column can contain up to 6萬4千個 instructions, fully capable of making NAN D Flash Parallel Reading advantages. The AHCI controller interface
http://elf8848.iteye.com/blog/1731274AHCI:NCQ technology, 600MB/S, one queue, 32 instructions per queuenvme:65000 queues, 65000 instructions per queue, 3.2gb/sWhat is NVMe?Thenon-volatile memory Express non-volatile storage standard, the NVME specification, was formally released in 2011, specifically for NVND Flash and next-generation storage devices. It is devel
NVMe SSDs are the evolution direction of storage disks, and NVMe SSDs have more than ten times the performance growth compared to SATA/SASSSD. This is mainly due to the NVMe SSD Multi-queue technology, through the multi-queue technology can be IO access parallelization, so as to improve the overall performance of the system. in theNVMein the storage ecosystem,Ss
data from the Flash block to avoid data errors.1.6 Data Hold (Retention)Because of the charge loss, the data on the Flash block is subject to potential problems, and the FTL needs to relocate the data.2. NVMe Disk Write Amplification statisticsFrom the introduction above you can see that there are many kinds of additional write operations inside the SSD, in order to analyze the impact of these write operations on the user write requests, you need to
NVME related Referenceas a standard specification for leading the next generation of storage technologies, NVME with the full Flash The system's big sell receives the attention and the hot hold more and more. So where do you start learning about NVME specifications and techniques? This article has compiled the author's use of reference materials, and share with y
What the hell is an RDMA? It is believed that most children who do not care about high-performance networks do not know much. But the advent of nvme over fabrics let the storage have to take time to look at this thing, this article will introduce the RDMA I know.RDMA (Remote Direct memory access) is intended to directly access the host's memory at the remote, without the need for host involvement . For example, when both the host and client are equipp
From NVMe official website:Windows Driver–microsoft Inbox? Closed source Driver (Microsoft)? Inbox driver to Windows operating systems (not available as standalone driver)? NVME 1.0E Compliant (no support for Multi-initiator, NS MGMT, controller list, etc.)? link:https://msdn.microsoft.com/en-us/library/windows/desktop/mt718131 (v=vs.85). aspxWindows Driver–ofa Reference Driver? Open Source Driver (reviewin
as flash capacity continues to rise, prices continue to fall, and applications are increasing, pushing flash storage systems to replace traditional disk systems. Compared to traditional disk systems, storage-system design considerations are subject to significant changes due to changes in storage media. This change is directly reflected in the change of storage system software architecture, that is, the so-called storage software stack reconfiguration. For Sata/sas SSDs , the performance of the
Today inFlash Memory Summit(FMS) The summit made aNVMe SSDtechnical reports on data protection. This year isNVMe SSDthe very large-scale use of theNVMe SSDMassive support for the server, large-scale deployment of the InternetNVMe SSD, traditional industries began to useNVMe, the storage array starts toNVMethe direction of efforts,NVMe SSDwill become the mainstream storage medium of the future. In theNVMe SSDin the process of moving forward, there is a
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Today I have nothing to think about node.js, so I downloaded a node.js installer to install on the Internet. which
Install Program: Node-v0.11.13-x64.msiPC System: Windows 7Custom Installation path: D:\TOOLS\NodeJs
After the installation is complete, execute:D:\tools\nodejs>node-vv0.11.13
Installation frame Express, download an installation document from the website, said installation Express can be divide
Windows installation Nodejs:
Node Download address: https://nodejs.org/download/Here is the 64bit.msi version.
Custom Installation path: D:\nodejs
To set the global installation save directory:
NPM config set prefix "D:\nodejs\node_global"
NPM config set cache "D:\nodejs\node_cache\" (first built Node_cache directory)
It is then installed directly into the global directory when the dependency is installed using the NPM-G command.
Install Express:
The PHP method for querying express information, and the PHP method for querying express information. The PHP method for querying express information. the PHP method for querying express information is described in this article. Share it with you for your reference. The details are as follows: Here, we use PHP to query
The landlord sequence dog, recently in the study of some things in the foreground, and then want to understand the next node. js, follow the example of the search to install.After installing Express, found that follow his verification method entered the EXPRESS-V command to verify the success of the installation, the results found that the prompt command is not availableWhat do we do? The speculation is tha
1. Based on the new Express installer concept, the installation of Express requires two steps (command line to find the Nodejs Directory global installation):(1) NPM install-g [email protected] (can also omit @4.15.0, install the latest version)(2) NPM install-g [email protected]Global Directory Situation:2. Environment variables added to the Node_global directory:3. Go to the Global directory to view the
Express query-Api interface and express delivery-Api interface. Express query-Api interface, express delivery-Api interface authorization successful my key is reprinted, please indicate from this source blog. csdn. netqxs965268249, please note! Api interface and Api interface
My key authorized successfully
If you have
PHP Query the method of express information, PHP Express information method
This paper describes the method of PHP query Express information. Share to everyone for your reference. Specific as follows:
Here use Express 100 Logistics inquiryHTML-only interfaces in official documents can also return JSON
The PHP code is
With the popularization of the Internet and the renewal of people's consumption concept, online shopping has been accepted by more and more people, the network has become a fashion, has become an irresistible trend, even in the global financial turmoil in the bursts of cold, you can still see "The scenery here alone good." The continuous development of online shopping, not only to the operators and consumers to bring real benefits, but also led to the rapid development of many industries, especi
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