RAID have the meaning of "cheap and redundant disk arrays". The principle is to use the array method to make the disk group, and the design of the data dispersion arrangement to improve the security of the data. Today, I will explain the system requirements for building RAID. Let you use the concept of Parity Check. When any hard disk in the array fails, the data can still be read. When the data is reconstructed, the data is processed. After calculation, re-insert into the new hard disk.
First, the creation of RAID 0
The first step: First, you must back up the data in the hard disk. Many users have not paid much attention to backup work, especially some relatively careless individual users. Creating RAID is a dangerous operation for data. If you don't pay attention, you may destroy the data of the entire hard disk. This is the case with RAID 0, which we first introduced. When creating RAID 0, all the disks in the array. The data on it will be erased, including the hard disk partition table. Therefore, you must first prepare a Windows 98 boot disk with Fdisk and Format commands, which is also an important point to pay attention to in this step.
Second Step: Set the jumpers of the two hard disks to Master, and connect them to the IDE3 and IDE4 ports of the KT7A-RAID (they are controlled by the HighPoint370 chip on the motherboard). Since RAID 0 will rebuild the partition table of the two hard disks, we do not need to consider the order of the hard disk connections (we will see that this order is important when creating RAID 1).
Step 3: Set the BIOS and open ATA RAID CONTROLLER. We enter the INTEGRATED PERIPHERALS option in the BIOS of the ABIT KT7A-RAID motherboard and enable the ATA100 RAID IDE CONTROLLER. Abit recommends changing the boot sequence to ATA 100 RAID. Actually, we found that this is not feasible during system installation. Is it possible to boot without a partitioned hard drive? So we still set the floppy drive as a preference.
Step 4: The next setup step is to create the core content of RAID 0.
1. After the system BIOS is set up, restart the computer. The boot will not report the hard disk again.
2. Disk management will be taken over by the HighPoint 370 chip.
3. The following is a very critical HighPoint 370 BIOS setup, press “Ctrl” and “H” simultaneously on the HighPoint 370 disk scan interface.
4. After entering the HighPoint 370 BIOS setup interface, the first job to do is to select “Create RAID” to create RAID.
5. In the "Array Mode" RAID mode selection, here you can see the RAID 0, RAID 1, RAID 0+1 and Span options, here we have selected RAID 0 items.
6. When the RAID mode selection is completed, it will automatically exit to the previous menu and select “Disk Drives”. In general, you can directly enter the car.
7. The next setting is the strip unit size, the default value is 64kB, no special requirements can be ignored.
8. Next is the option of "Start Create", before you press “Y”, please seriously think about whether there is important data left on the hard disk, this is your last Opportunity! Once you start creating RAID, all the data on your hard drive will be erased.
9. After the creation is completed, specify the BOOT boot disk, choose one. Press “Esc” to exit, of course, press “Y” to confirm.
The HighPoint 370 BIOS does not provide a similar "Exit Without Save" function, which is irreversible after modifying the settings.
In the RAID family, RAID 0 and RAID 1 are the most widely used on personal computers. After all, there are very few individual users who are willing to use 4 or more hard disks to build RAID 0+1 or other hard disk arrays. We will only explain these two RAID methods here.