highpoint 2720sgl

CentOS6 (64-bit) install HighPoint RocketRAID 2640x4 card driver 1. download the driver from the server BIOS to view the RAID model, to the official website www.highpoint-tech.com download CentOS6.2 corresponding driver RHEL_CentOS 6u2 x86_64 www.2cto.com 2. run the tar command to decompress the driver to the centos6264 directory where centos6.2 (64bit) has been installed on the USB flash drive. The steps are as follows: insert a USB flash drive (with

completely independent of the host's CPU resources. RAID 7 can be viewed as a storage computer (Storage Computer), which is significantly different from other RAID standards. In addition to the above criteria (table 1), we can combine a variety of RAID specifications, such as RAID 0+1, to build the desired RAID array, such as RAID 5+3 (RAID 53), which is a more widely used array form. Users can generally gain a disk storage system that is more responsive to their requirements by flexibly config

loss than RAID 5, so "write performance" is very poor. 　　Poor performance and complex implementations allow RAID 6 to be rarely used in practice. RAID 7: This is a new RAID standard, with its own intelligent real-time operating system and software tools for storage management, can be completely independent of the host running, do not occupy the host CPU resources. RAID 7 can be seen as a storage computer (Storage computer), which differs significantly from other RAID standards. In addition to t

practice.Raid 7: this is a new raid standard. It comes with an intelligent real-time operating system and a software tool for storage management. It can run completely independently of the host and does not occupy host CPU resources. Raid 7 can be viewed as a storage computer, which is significantly different from other raid standards. In addition to the above standards (such as table 1), we can combine multiple raid specifications like RAID 0 + 1 to build the required raid array, such as RAID

{g.DrawString ("Plot area is too small", new Font ("Tahoma", 8),Brushes.blue, New PointF (0, 0));return BM;}Calculate the highest pointfloat Highpoint = 1;foreach (DataRow dr in Dt. Rows){if (Highpoint {Highpoint = Convert.tosingle (dr[0]);}if (Highpoint {Highpoint = Conver

"); BOXORIGIN.Y + 15; TEXTORIGIN.Y + 15; } Recycle resources G.dispose (); Return (Image) BM; } } Draw a bar chart public class Barchart { Public Barchart () { } Render is a large graphic title, the graph opens the small title, the graph width, the graph length, the pie chart data set and the pie chart dataset Public Image Render (string title, string subtitle, int width, int height, DataSet chartData) { const int side_length = 400; const int chart_top = 75; const int chart_height = 200; const

); float percent = 0; for (int i=0;i{ G.fillrectangle (New SolidBrush (Chartutil.getchartitemcolor (i)), boxorigin.x,boxorigin.y,20,10); G.drawrectangle (pens.black,boxorigin.x,boxorigin.y,20,10); Percent = convert.tosingle (dt. ROWS[I][1])/sumdata * 100; g.drawstring (dt. Rows[i][0]. ToString () + "-" + dt. ROWS[I][1]. ToString () + "(" + percent.) ToString ("0") + "%", new Font ("Tahoma", "Brushes.black,textorigin"); BOXORIGIN.Y + 15; TEXTORIGIN.Y + 15; } By Response.outputstream, the contents

; textorigin. Y + = 15; } BM. save (target, imageformat. GIF); // reclaim resources BM. dispose (); G. dispose (); } // Draw a bar chartPublic class barchart{Public barchart (){}Public void render (String title, string subtitle,Int width, int height, dataset chartdata, stream target){Const int side_length = 400;Const int chart_top = 75;Const int character height = 200;Const int chart_left = 50;Const int chart_width = 300;Datatable dt = chartdata. Tables [0]; // Calc

subTitle, int width, int height, DataSet chartData, Stream target){const int side_length = 400;const int chart_top = 75;const int chart_height = 200;const int chart_left = 50;const int chart_width = 300;DataTable dt = chartdata.tables[0];Calculate the highest pointfloat Highpoint = 0;foreach (DataRow dr in Dt. Rows){if (Highpoint{Highpoint = Convert.tosingle (dr

Float highpoint = 0; Foreach (datarow DR in DT. Rows) { If (highpoint { Highpoint = convert. tosingle (Dr [1]); } } // Create a graphics object instance Bitmap Bm = new Bitmap (width, height ); Graphics G = graphics. fromimage (BM ); // Set graph and text attributes G. scaletransform (convert. tosingle (width)/side_length, (convert. tosingle (height)/side_length

;For (INT I = 0; I {G. fillrectangle (New solidbrush (chartutil. getchartitemcolor (I), boxorigin. X, boxorigin. Y, 20, 10 );G. drawrectangle (pens. Black, boxorigin. X, boxorigin. Y, 20, 10 );Percent = convert. tosingle (Dt. Rows [I] [1])/consumer data * 100;G. drawstring (DT. rows [I] [0]. tostring () + "-" + dt. rows [I] [1]. tostring () + "(" + percent. tostring ("0") + "%)", new font ("tahoma", 10), brushes. black, textorigin );Boxorigin. Y + = 15;Textorigin. Y + = 15;}// Send the image con

by highpoint 372n on the lanparty pro875 board. The created SATA disk array and PATA disk array use different hard disk types, so the test results are for reference only. Winmtr 99: Through the winmtr 99 test, we can understand that after raid is set up, both the commercial disk performance and the high-end disk performance have been greatly improved. The raid 1.5, composed of two Gold Diamond 9, has the strongest commercial disk performance, reachi

used array form. Users typically have the flexibility to configure disk arrays to obtain more disk storage systems that meet their requirements.Initially, the RAID scheme is primarily for SCSI hard disk systems, and the system costs are more expensive. In 1993, Highpoint introduced the first Ide-raid control chip, which was able to use relatively inexpensive IDE hard drives to build a RAID system, greatly reducing the "threshold" of raid.Since then,

RAID2-4, so the RAID2-4 is basically out of the market.Now, it is generally believed that RAID2-4 is only used for raid Development Research　　(4) Available ide raidThe above is a description of the raid principle, and our pcfans are most concerned with raid applications. We use an IDE hard drive on a daily basis, and we can easily buy an ide raid card and a motherboard that integrates raid chips. Therefore, the closest thing to us is ide raid. Due to the low application level, most ide raid onl

to see if the disk letter matches the partition settings, and the match is successful. Most RAID controllers under Windows can manage raid in Windows by using the appropriate software program that the manufacturer has launched. This is the general step in making raid and installing the Windows operating system on a raid, and there is a slight difference in the specific set of project names and settings as the onboard RAID controller has different factory cards. At present, the Board on the boa

Sometimes CentOS Linux kernel does not have a RAID card driver, can only be loaded with floppy disk drive, in fact, there are other methods, as long as the appropriate driver to find the official, the RAID card is now a lot of brands, but most of the independent RAID card for Highpoint,3ware, Adapter,lsi,promise, and some are integrated on the motherboard, if you want to make a drive with the ISO mirror CD-ROM more time-consuming effort, be familiar w

configuration to WinPE environment at startup to facilitate modification of system options and add configuration information (for example, adding system services and input methods, importing custom advanced tool configuration information, and so on). Complete Driver Support : Support USB 2.0 mass storage device (U disk, external hard disk) to facilitate data backup. Built-in Intel, SiS, ALi, VIA, Adaptec, HP Compaq, DELL, MegaRAID, Promise, LSI, Silicon, stallion, Mylex, Advensys

data recovery, drive roaming, and ultra-high speed buffering. It provides performance, data protection, reliability, availability, and manageability solutions. The disk array card has a dedicated processor, generally an Intel i960 chip, and a dedicated storage device for high-speed data buffering. In this way, the server directly processes disk operations through the disk array card. Therefore, a large amount of CPU and system memory resources are not required, and the performance of the disk s

develops rapidly, but the hard drive transmission rate also becomes the performance bottleneck. What to do? The sophistication of IDE RAID technology allows us to easily build our own ultra-fast drives. In practical applications, the RAID 0 HDD array can be much faster than the normal IDE 7200-ATA 133 hard drives, today, on most high-end or player motherboards we can find a promise or highpoint RAID chip, and found that the amount they provide A few

contrast, the general IDE hard drive capacity at the same price will be more than 80 GB.We can compare IDE-RAID and scsi raid, we use four Maxtor golden diamond seven generation 80 GB hard drive consisting of RAID 0 + 1, choose to support ATA/133 HighPoint RocketRAID 404 RAID card, the total price of this system is less than 8000 RMB *, which is equivalent to a 10 000 to GB SCSI hard drive, using Ultra160SCSI interface/4 MB cache, and equipped with s