sata multiplier

want the drive to vibrate during operation,The computer's vibrating magnetic arm can also vibrate, and the head may touch the track,And the disc has been spinning, it is possible to scrape the disc.We want the hard drive to maintain a stable working state.The hard disk is actually a mechanical device, only a minute to turn 10,000 rpm,While Pathfinding is a mechanical work, the main time to fetch data from a hard drive is spent on seeking the road.Read data consumption time from hard disk: Maxim

Some friends want to use the VirtualBox tool to build a RAC test environment and share the storage division on their personal computers, but they do not know how to use the RAC test environment, the following section describes how to use VirtualBox to build a RAC test environment and share the storage design process. The process is as follows: 1. Use the vboxmanage.exe tool in virtualboxto create a disk. This tool can be found in the VirtualBox installation directory. # VBoxManage.exe createh

How to DIY a host? It can meet their own work, the game needs, but also a high value, noise, the most important thing is that the price is cheap, better quality. This series is to let the machine 0 Foundation of the friends can easily understand, so try to avoid professional parameters At present, the mainstream solid-state hard disk mainly SATA3 interface, a small part of u.2, m.2, PCIE. The same capacity and different interface solid-state hard drive price difference is very lar

increased, the world's largest single disk capacity reached 1TB, and 400GB and 320GB, such as large capacity has been in the market everywhere, 320GB product market has been quite mature, The price is also very reasonable. (currently on the market, the minimum capacity of hard disk 80GB, the average single GB price of about 4.5 yuan, and 320GB capacity of the hard disk, its single GB price of about 2.4 yuan.) Then, small series from a few major keywords to start, to introduce some hard drive to

Motherboard 8 Krai via kt600 + vt8237, two SATA interfaces, two ide interfaces, one IDE is connected to the hard disk, and the system Windows XP SP2 is installed; the other ide is connected to two optical drives, the master is a pioneer recorder, and the slave is a read-only optical drive.I think a hard disk is not enough because of a lot of movies and music, and I want to buy another hard disk with a larger capacity, it is used to store movies or mus

figure below). So now we can't trust this thing completely. For more details on DPR, please read the PPK of the Great God: Devicepixelratio Original source: PPK Greater about devicepixelratio physical pixels On IOS Retina devices, Screen.width gives the width in dips. So both a retina and a Non-retina iPad report 768 in portrait mode.On the three Android devices, Screen.width gives the width in physical pixels; 480, 720, and respectively. All browsers in the devices use the same values. (Imagi

+ string1//equals "!hello"Let Characterpluscharacter = Character1 + character2//equals "!?"You can also append a string or character to an already defined string by using the compound addition operator (+ =).var instruction = "Look over"Instruction + = string2Instruction now equals ' look over there 'var welcome = "Good Morning"Welcome + = Character1Welcome now equals "Good morning!" 　　Note the point:You cannot append a string or character to a character variable, because a value of one charact

In STM32, there are five clock sources for HSI, HSE, LSI, LSE, PLL.In fact, four clock sources, as shown (gray-blue), PLL is a PLL clock that is multiplied by a phase-locked loop circuit. ①, HSI is a high-speed internal clock, RC oscillator, frequency of 8MHz.　　②, HSE is a high-speed external clock, can be connected to the quartz/ceramic resonator, or external clock source, frequency range of 4mhz~16mhz.　　③, LSI is a low-speed internal clock, RC oscillator, frequency of 40kHz.　　④, LSE is a low-s

chipset. The parameter external frequency is also called the external frequency or fundamental frequency of the CPU. The unit of measurement is "MHz". The CPU clock speed is proportional to the external frequency (multiplier). Because the memory and the l2cache operating frequency configured on the motherboard are synchronized with the external frequency, the CPU with a higher external frequency is used to assemble the computer, its overall performan

first, then the background is drawn (set the PorterDuff.Mode.DST_ATOP mode for the background brush: Take the upper non-intersecting part and the lower part of the intersection). Of course it can be PorterDuff.Mode.SRC_ATOP, depending on the order in which you draw. Finally, the text is drawn up, forming a final bitmap, and finally the bitmap painting to OnDraw parameters canvas.Paint paint =NewPaint (); Paint.setantialias (true); Bitmap finalbmp = Bitmap.createbitmap (Width,height, Bitmap.Conf

(); Len_num2=num2.length (); String [] Sing_mul=Newstring[len_num2]; intmaxlen_sing = 0; for(intz=0; z//InitializeSing_mul[z] = ""; intTimes = 0; //The multiplier * Multiplier--Returns the string array Sing_mul, and each element is a result of a multiplier that is multiplied by a number of digits. for(inti=len_num2-1; i>=0; i--){ intNum2cur

What is SAS? SAS is a new generation of SCSI technology, and the popular Serial ATA (SATA)Hard DiskSimilarly, serial technology is used to achieve higher transmission speeds and improve internal space by shortening the connection lines. SAS is a new interface developed after the parallel SCSI interface. This interface is designed to improve the efficiency, availability, and scalability of the storage system, and is provided with Serial ATA (Serial AT

Nothing left to worry about. A raid 0 is set up, and the speed is improved significantly. The speed of loading games and starting programs is improved. First, let's make a comparison. Single-disc speed: Raid0 speed:What about the hard disk used? Two Seagate GB single disk STEP/Method 1 Next let's talk about the steps, because the Board is not the same, enter and set the method is different, the following take my P55A-UD3R as an example, intel board settings are basically the same:First, when

　　Step method 1, the following said steps, because the board is not the same, enter and set the method is different, the following to my p55a-ud3r for example, the Intel board settings are basically the same: First after the power is opened B I o s in the P O s T, press the "integrated peripherals" the "pch SATA contrp mode" option to "raid (XHD), exit the BIOS program settings and save the settings results. The following figure 2, and the

the raid (as per your preference or RAID user); Set the block size, and then save the settings; Load drivers by operating system after RAID Setup The operating system is successfully installed and finished. Siliconimage The main board used 3112, 3114, 31,323 models of the controller, the corresponding model is as follows: Although there are three different models, the BIOS settings are roughly the same as the raid BIOS interface, but the supported RAID modes are slightly different

involves a dual-channel memory problem, most ATX motherboards will be divided into two different colors of 4 memory slots, usually divided into two colors, adjacent to the different color of the two root cuttings groove to form a memory channel, the construction of dual-channel memory requires two memory inserted in the same color of the memory bar can build dual-channel memory. It should be noted that the memory channel speed depends on the speed of the slowest memory module insta

A certain day of the month, is a friend to start a new SATA hard drive that day, I am alone in the computer city outside the platoon irresolute, met this gentleman, came to ask me: "Sir has for my new hard drive and the old hard drive mixed raid write a little what not?" "I said no," he told me, "Sir, write a few, many friends need to read the article of the Gentleman" The above is not responsible for the words of the preface What is mixed raid To

priority (such as a virtual machine) due to system IO, of course, the algorithm must also ensure that the appropriate system IO needs to avoid the impact on the system, there is also a core optimization algorithm can be aggregated application (virtual machine) of the individual random IO for the aggregation of sequential IO to optimize the access speed of traditional mechanical hard disk.Finally, the software storage bus provides cache optimizations for the storage bus cache in each cluster sto

1. in Linux, each device is treated as a file, and each device has a file name. For example, the hard disk file name of the IDE interface is/dev/HD [a-d]. The letter in the brackets is any one of a-d, that is,/dev/hda,/dev/HDB, /dev/HDC and/dev/HDD files. Device Device File Name in Linux IDE Hard Drive /Dev/HD [a-d] SCSI/SATA/USB hard drive /Dev/SD [A-p] USB flash drive /Dev/SD [AP] (same as

In addition to CPU sockets, various slots and interfaces, the motherboard also has many chips. In addition to the Motherboard chipset, most of the other larger chips are functional chips, which provide some specific functions for the motherboard. 1. BIOS chip The motherboard has a very important chip-BIOS chip. It is a flash memory chip that stores the most important basic input and output in the computer. Program , System settings, boot self-check program, etc. In order to ensure that the ab