I haven't updated my blog for a long time. A while ago, I experienced my first job hopping, which is much harder than I thought. After all, it was the first job and it was quite sad to leave. The new job has just begun, and we hope everything will go well. This blog was written during May 1, and is officially posted today. It is a good habit to write a technical blog. I want to keep it!
When I was in the previous job, I always wanted to try Flash/SSD
What is a solid state drive and how long is the SSD life?SSD refers to the use of flash memory chip composed of SSD SSD, is the use of flash flash memory particles as a storage unit, no longer using traditional mechanical storage methods, the use of simulated virtual hard disk access and sectors, etc., can also simply
As SSD How to use? How do you look at 4k alignment?
About as SSD software:
As SSD is a professional SSD (SSD) transmission Speed Test tool, it can not only test the speed of solid-state hard disk reading, but also can detect
What is SSD?
A Solid State Disk (Solid State Disk or Solid State Drive), also known as an electronic hard Disk or Solid State electronic Disk, is a hard Disk consisting of a control unit and a Solid State storage unit (DRAM or FLASH chip. The interface specifications, functions, and usage of SSD are the same as those of common hard disks, and the product shape and size are also the same as those of common h
PCIe SSD introduction and application (I), pciessd introduction and application
SSD with SATA/SAS interfaces has been available for more than a decade and has been widely used in the personal consumption field. However, its performance still cannot fully meet the high throughput and low latency requirements of enterprise users, A few years ago, the world's first PCIe interface
OSX: it may not be a good idea to enable the ssd trim function.
A long time ago, since people started loading SSD to Mac machines and OSX began to support TRIM, people began to pay attention to enabling the TRIM function of OSX to optimize SSD performance, this is the slowest operation for SSD, especially when there ar
The use case is simple, I want to use both SSD disks and SATA disks within the same machine and ultimately create pools pointing to SSD or SATA disks. in order to achieve our goal, we need to modify the crush map. my example has 2 SATA disks and 2 SSD disks on each host and I have 3 hosts in total.
To revoke strate, please refer to the following picture:
I. Cr
From: http://yblog.org/archive/index.php/11734
The biggest difference between an SSD and a general traditional hard drive is that its memory-to-life ratio is limited, and the fast Memory (flash memory) in the same data area) SSD memory uses a special algorithm built in the control chip to evenly distribute data to the fast-moving memory chip in different regions.
For Ubuntu Linux, my Acer 3750g laptop is Ub
It has become fashionable for computers to upgrade their solid-state drives to enhance their speed and nuclear performance. However, a variety of different computers, can upgrade SSDs, how to upgrade SSD to achieve the speed of nuclear performance, but the biggest problem of upgrading SSDs. In order to meet the needs of upgrading the SSD friends, this computer upgrade S
This article has a total of four parts:1. Description of Macbook Pro2. Pre-Preparation3, formally began to replace the SSD4, the system installed on the SSD5. Problems that ariseMacbook Pro Scenario Description:
My MBP is 12 years in the 13-inch MBP low, in the rise of 10.10 after the card does not work, so ready to change the CD-ROM drive to SSD, and then upgrade the memory bar;
Pre-Preparation 1, determine the number of SATA CD-RO
Some time ago in developing a system that uses SSD for caching, a large amount of disk caching occurs when writing data at high speed. Too much disk caching is very dangerous if there is a problem with the machine if it is not written to disk in a timely manner, which can result in a lot of data loss, but if the data is brushed into the disk in real time, the write efficiency is too low. In order to understand the Linux system of this disk write chara
of the computer. So we say, now the bottleneck of computer hardware is the traditional mechanical hard disk.
That being the case, we can see that improving the performance of the hard drive can improve our experience of using the computer, so SSD turned out. SSD because of its storage medium and principle and traditional mechanical hard disk is completely different, so greatly improve the read and write s
From the advent of SSDs, to the present popularity, in fact, only a few years of time. During this time, SSD performance and capacity, especially the price, have undergone a great change. Have to say, now the capacity of SSD is getting bigger, the price is also getting cheaper. However, compared with the traditional HDD, there are some gaps in the capacity and price ratio, especially the large capacity is t
First, recognize the mSATA SSD and 2.5-inch SSD SSDSSDs currently have MSATA SSDs and 2.5-inch SSD SSDs.1, MSATA SSD uses MSATA interface connection, small size, suitable for the notebook computer with MSATA interface installed. Now a lot of new computers have mSATA interface, some SATA2 3gb/s, there are SATA3 6gb/s, T
The use of SSD hard disk is becoming more and more common, its powerful performance can help the computer to improve the system and software running speed, so by many users, but a lot of computer novice for how to install SSD hard disk still have many questions, the following small series will explain the SSD hard disk installation method.
Failure phenomenon:
Some of the ThinkPad preinstalled mSATA SSD shipments do not have the Expresscache software installed, resulting in the inability to use the mSATA SSD as a cache.
Impact Range:
-The above problems may occur on the following models, but not limited to the following models:
ThinkPad T430, t430i, t430s, T430si, T530, t530iThinkPad W530ThinkPad X230, x230i, X230 tablet, x230i tabletThink
in recent years, with the popularity of SSD, high-speed solid-state hard disk has become the standard of computer hardware gradually. SSD Solid state hard disk solves the traditional mechanical hard disk reading speed bottleneck problem, bring more fluent experience, computer switch machine obviously speed up, browse the Web page smoother, large-scale application and game load faster and so on, experience i
ImpressionsToday, I tested the model of my own training, and YOLOv2 done a comparison, the detection is correct, YOLOv2 version of the accuracy is not high, but there are a lot of SSD did not detect, recall rate is not high. Note that the SSD environment is Python3, and running on the python2 will be problematic. TENSORFLOW-GPU, OPENCV installation reference my blog: SS
In the relational database area, PostgreSQL is a very popular open source database software. Since its release in 1996, it has accumulated nearly 20 years of practical experience, both in PostgreSQL itself and in community ecology. Not only small and medium-sized enterprises, many large industry customers will also use PostgreSQL to build their own database system. This article focuses on PostgreSQL and compares the SAS disks in the PCIe SSD (this art
files are in use. DiskSim is initially separated from a large, system-level simulator, so it can be easily transplanted to the entire system simulator (such as porting to SimOS ).
What DiskSim Does Not Do?DiskSim only simulates and reports storage subsystem performance-related aspects. It does not simulate the behavior of other computer system components, or the interaction between components and the storage system.
DiskSim simulates the performance of the hard disk system, but does not save th
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