qlc ssd

of load determine that all storage devices must have the highest possible performance to cope. The ideal goal is that both types of load can achieve the same performance as the top-level memory in Figure 2. At the same time, it is also expected that it has a non-volatile external memory as shown in the bottom layer of the figure to make up for the problem that data is easy to lose when there is a power failure in the inner. From the memory to the external storage level, we can see that the idea

Last Saturday, I attended a Baidu technology Salon held by infoq. The topic is about MySQL. There were a lot of people present on that day. Some of them were unexpected, maybe because they were free of charge :) There are two speakers, the first from Baidu, who mainly introduced Baidu's work on SSD/flash and the second from terradata. The topic is about spatial database. Frankly speaking, the first speech was very good. We can see that Baidu has done

What is a solid-state drive? How do you use it? Correct use of solid-state hard disk method Guess what you like: the difference between m.2 and SATA3 SSD In general, the proper use of solid-state drives is nothing more than 4K alignment and the ability to turn on the hard drive AHCI. In addition there are a few people will not notice the details, the previous article has not been detailed with you, the following article to explain in detail under

in 2015 years, TLC SSD has gradually become the market leading role, with the ultra-high cost performance of the SSDs launched a popular campaign. In the TLCSSD Gongchenglvede, many SSD companies began to play "EMLC", and TLC SSD Camp also appeared "ETLC" branch. So what exactly are these prefixes with "e" flash particles? Here's a chat about the difference betwe

Preface Bloggers have spent a lot of time explaining how to Kitti raw data into an SSD-trained format, and then use the relevant Caffe code to implement SSD training. Download Vgg pre-training model The SSD is used for its own inspection task, it is required fine-tuning a pretrained network, the friends who have read the paper may know that the

Hello! AspromisedtodayIdidsomeSSDtesting. Thesetup: aLinuxboxwith24GBofRAM, withtwodisks. A) Aspinningdisk. B) AnSSD (Intel320series). Theideais, idea Hello! As promised today I did some SSD testing. the setup: a Linux box with 24 GB of RAM, with two disks. a) A spinning disk. b) An SSD (Intel 320 series ). the idea is, what happens if I set the SSD disk partitio

installationSet sata mode in BIOS to raid;Press F12 to select a USB flash drive for boot;Select the language and other preferences, and click next to install;Select the operating system to install;Select agree to the terms and click next to install;On the disk partition page, click "load driver" and find the IRST driver folder on the USB flash drive. Then, click OK;Automatically install the driver compatible with the device. Click next to install the driver;In this way, you can view t

Reprint please attach address: http://blog.csdn.net/xiaobing_blog/article/details/38704041Long time no blog, yesterday to help a colleague installed a Samsung computer, let me on the installation of the system has a bit of new understanding,Take this record and hope to help you.As a computer enthusiast, the installation is the necessary skills, but also reflect their own ability, or, understand the computer's self-confidence source.Notebook model: Samsung's ultra-thin version, SamsungSeries 5 Ul

Flashcache is another masterpiece of Facebook's technical team, originally designed to speed up MySQL.Flashcache is at the Linux level, so any software or application that is trapped by disk IO is easy to use.Why is it used to speed up MySQL, this involves database expertise, the traditional disk random write random reading efficiency is quite low, need to carry out mechanized seek to read, although many academic papers on the database optimization has been in these aspects. So the existence of

How to partition a solid-state drive? With the popularity of solid-state hard drives, many computer users now use solid-state drives or upgraded SSD, the following article to detail the new purchase of the SSD How to partition, this article to 240G new solid-state hard disk partition tutorial demo, the method is as follows. Solid-state hard disk partitions and mechanical hard disk similar, need

How to install solid state hard disk installation tutorial The current mainstream solid-state hard disk interface for SATA and mSATA, where SATA is the most common, and msata is mainly applicable to notebooks, but now the new desktop computer motherboards are also beginning to support the mSATA interface, let's go over the details below. Recommended reading: What is a solid-state drive? How do you use it? The most common SATA interface Solid state HDD Installation method: Solid-state hard di

Http://baike.baidu.com/search?word=%E5%8C%97%E4%BA%AC%E5%88%98%E5%BF%83%E8%AF%AD%E4%B8%B0%E8%83%B8%E8%8C%B6From a technical point of view, NAND flash flash media, although there is a problem of the number of erasure, but with software algorithms, system-level data protection technology, NAND flash life is no longer a difficult problem, and NAND Flash's more advantages have become an important driver of the technology's push forward. SSDs built with NAND flash are rapidly replacing traditional di

If you want to reprint please indicate the author, original address: http://xiaoquqi.github.io/blog/2015/06/28/ceph-performance-optimization-summary/I've been busy with the optimization and testing of ceph storage, and have looked at various materials, but it seems that there is not an article to explain the methodology, so I would like to summarize here, a lot of content is not my original, but to do a summary. If there are any problems, please spray me so that I can improve.Optimization method

The last time I wrote something about the domain model, I 'd like to write some knowledge about the system sequence diagram today...Ready? Go!Overview: The system sequence diagram is a product that is quickly and simply created to describe the input and output events related to the system discussed. They are the input of operation contract and Object design.Sequence Chart example: System sequence diagram (SSD): Used in a specific scenario of a use cas

to help everyone. . What is a solid-state drive SSD is a hard disk made of solid-state electronic memory chip array, which consists of control unit and storage unit (medium). 　　 From the storage unit to differentiate, solid-state hard disk can be divided into NAND flash flash chip, DRAM chip two types. Based on flash solid-state hard disk: the use of NAND flash chip as a storage unit, but also by the vast numbers of netizens known as "

With advances in technology, SSD has started to replace traditional HDD hard drives in some high-end models and even notebooks since last year. SSD provides strong performance and stability compared to HDD. So what improvements have been made to SSD support as Microsoft's latest Windows 7 system? Listen to Microsoft Engineering 7 explanation! In Windows 7, we ke

on the HDD.4-3 Cluster Map: Defines two buckets of root type, one is the bucket of root type named SSD, and its OSD storage media is SSD disk. It has two hosts, each host device is SSD disk, and the other is a bucket named HDD root type, the OSD storage media is HDD disk, it has two host, each host device is HDD disk.Rule ss