ahci vs raid

Ahci is short for the Serial ATA advanced control interface. It is an Intel-dominated technology that allows the storage driverProgramEnable advanced SATA functions, such as native command queue (ncq) and hot swapping. After ahci is enabled, the potential performance of the SATA hard disk can be realized. Theoretically, the read/write speed of the hard disk can be increased by about 30%. Step 1: Click the

played, which can theoretically increase the disk read/write speed by 30%. First: After clicking on the Boot menu, select the "Run" column in the menu. Type "regedit" in the entry box in the Run column and enter the Registry Editor. Second: After opening Registry Editor, enter the "HKEY_LOCAL_MACHINESYSTEMCURRENTCONTROLSETSERVICESMSAHCI" key value. Double-click the item named "Start" in the right window to pop up a dialog box that changes the default parameter from 3 to 0. Click OK and then r

raid Introduction: RAID (Redundant array of inexpensive Disks) is called a redundant array of inexpensive disks. The basic principle of RAID is to put multiple inexpensive small disks RAID level description; generally used RAID class, Are

common in different operating systems and hardware ). This type of device describes a general system memory structure with control and status areas and command sequence entry tables. Each Command table entry contains SATA device programming information, and a pointer to the description table (used to transmit data on devices and hosts. Ahci includes a PCI bar (base address register) to implement native SATA functionality. Thanks to the successful dev

after the hard drive really to power? Finally, the system default scoring chart after the AHCI mode is turned on to smash a rumor that the AHCI mode can improve the system score. I do not know those who open AHCI mode after the system score of 6.5 or even 7.2 of the warrior is how to do it, seemingly I see is also a platform, is not a platform of di

Graphic RAID 0, RAID 1, RAID 5, RAID 10 RAID (Redundant Array of Independent Disk Independent Redundant Disk Array) technology was proposed by the University of California at Berkeley in 1987, initially to combine small cheap disks to replace large expensive disks, at the sa

theoretically increase the disk read/write speed by 30%. STEP1: After clicking on the Boot menu, select the "Run" column in the menu. Type "regedit" in the entry box in the Run column and enter the Registry Editor. Enter "regedit" STEP2: After opening Registry Editor, enter the "HKEY_LOCAL_MACHINESYSTEMCURRENTCONTROLSETSERVICESMSAHCI" key value. Double-click the item named "Start" in the right window to pop up a dialog box that changes the default parameter from 3 to 0. Click OK and then res

Question: What is a RAID level? What does the raid level mean? RAID technology is divided into several different levels, offering different speeds, security, and price/performance. Choose the appropriate RAID level to meet the user's requirements for storage system availability, performance, and capacity, depending on

the latest version 0309. After the restart, the test and speed remain unchanged.2: The left side of as_ssd_benchmark has a red pciide-bad,Just try to open ahci..3: I thought it was very simple. I didn't expect the official team to be really irresponsible.Http://support.lenovo.com/en_US/downloads/default.page? Find [Url =] storage [/url] Select Intel rapid storage technology driver Not very large, according to official instructions, upgrade driver, no

After replacing the SSD under Mac Pro, it is cumbersome to change the SSD to AHCI mode if Win7 is installed. This article describes how to change the SSD in Mac Win7 to AHCI mode driver and the processing of several common problems.How to change the SSD drive mode of Win7 to AHCI when Lion and Win7 dual system coexist1.1, enter the Win7 system, modify the registr

Raid implementation:Raid: cheap redundant disk array, which turns several hard disks into a wholeLater, because it lost its original cheap purpose and became very expensive, it changed its nameIndependent redundant disk arrayAlthough we cannot implement raid on hardware, we can still implement raid because of our limited strength and we didn't buy those devices.N

system disk correction and has joined the AHCI drive, otherwise you need to keep the AHCI drive in advance in the disk (now is generally a U disk, rarely see floppy disk); 2, start Windows XP installer (is the original installation of that, not ghost installation), when you see press F6 if you need to install a third party SCSI or RAID driver information, immed

// Force enable ahci in XP 1. Enable ahci in the biso of the motherboard, and the blue screen will crash, because you didn't drive it, Hoho ~~~2. Download the driver. Intel's ahci/raid driver is Intel (r) matrix Storage Manager. download the latest version.3. Run and install. Because your motherboard has not enabled

-swappable. With AHCI enabled, the potential performance of SATA drives can be played, which can theoretically increase the disk read/write speed by 30%. STEP1: After clicking on the Boot menu, select the "Run" column in the menu. Type "regedit" in the entry box in the Run column and enter the Registry Editor. STEP2: After opening Registry Editor, enter the "HKEY_LOCAL_MACHINESYSTEMCURRENTCONTROLSETSERVICESMSAHCI" key value. Double-click the item na

Open AHCI No reload system Now provides a tool for you to update AHCI drives directly under Windows, and reboot the AHCI hard drive mode in the BIOS to get it done. First download the Skyiar v0.5 software in the Windows family, click Run. You can see that the software automatically recognizes the Windows operating system and is automatically checked for Ide/sat

When the SATA mode of the motherboard is set to ahci or raid mode, the hard disk may not be found during installation of the original Windows operating system installation disc. The original Windows XP installation disc does not contain SATA ahci and raid drivers.Program, Use nlite to integrate the following driver i

Raid 10 Vs. RAID 5 performance provides a Performance Data graph that uses sqlio. EXE to generate 8 KB random reads and writes, with a performance gap nearly doubled. Disk access time = disk seek time + latency Latency = 1 minute/RPM/2 The main factor determining iops is the array'sAlgorithm, Cache hit rate, and number of disks. The array algorithms vary depending on the array. For example, in hds

Risk Warning: The methods used in this article, such as improper operations, may cause the motherboard to be decommissioned. It is recommended that you complete the operation under the guidance of professionals! I believe that friends who use the Asus P5K-SE know that SATA In the BIOS selection has only one ide option. Although ich9 supports ahci, Asus removes this option in BIOS for various reasons. After a long period of research (Google took a lon

Recently, I was thinking about a cheap and convenient way to integrate cinder with LVM driver, that is, a raid hard disk consisting of cinder + LVM + multiple disks. In this case, you need to consider what raid should be used based on read/write requirements and available resources, and how to choose the raid mode. There are two

RAID, or Redundantarrays of Lnexpensive Disks (RAID), is a fault-tolerant, inexpensive disk array.First, RAID-0Isometric mode-stripe for best performanceThis model is best if it is made up of two types of disks with the same capacity. This mode of RAID will cut the disk into equal chunks, and when a file is written to