raid 0 backup

three hard drives to achieve the array, it can realize RAID 0 acceleration function can also realize RAID 1 backup data function, when there are three hard disks in the array, it will be required to store the data according to the user-defined segmentation size into a file fragment stored in two hard drives, at this t

hard disks to form a logical hard disk with acceleration, automatic backup, data corruption recovery and other functions.To meet the needs of different working environments, RAID technology is divided into the following RAID 0-7 Count 8. Each array has its own advantages and disadvantages, such as a

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 disk

partprobe /dev/sda Partition and format mkfs.ext3 /dev/sda7 mkfs.ext3 /dev/sda8 Then you can create soft RAID 1. mdadm -C /dev/md1 -a yes -l 1 -n 2 /dev/sda7 /dev/sda8 Then, format the entire file.Mkfs. ext3 note that the format must be consistentCreate a mount point mkdir /mnt/raid1 Mount raid1 mount /dev/md1 /mnt/raid1 Now you can useYou can check the LS-L in CD, MNT, and raid1. drwx------ 2 root root 16384 07-30 17:00 lost+found You can also see

this time, the third and fourth disks are idle. When B data is written to the third Disk in a certain band, and B data is checked in the fourth disk, in this way, both data a and data B can be read and written at the same time. VII. Raid 6 Raid 6 adds a verification area on the basis of RAID 5, each of which has two verification areas. They use an unused verifi

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

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

What is RAID-0RAID-0 (isometric mode, stripe): Best performance. This model works better when it is made up of disks of the same size and capacity. This mode of RAID will first cut the disk out of the same amount of chunks (for example, 4KB), and then when a file to write to the raid, the file will be cut according to

Raid 10: Make at least four hard disks into RAID 1. If there are four hard disks, there will be two to rand1 disks. If there are eight hard disks, there will be four to raid 1 disks, the biggest purpose of raid1 is to ensure high data security and high read/write speed, but to sacrifice half of the disk space. If the number 12345678 is written to a request, the w

Software RAID 0, software RAID Implementation of Software RAID 0 RAID 0, also known as Stripe or Striping, represents the highest storage performance in all

So how can we solve the bottleneck of hard disk access speed? Creating a raid array with multiple hard disks is a better solution. However, due to the lack of practical experience, many network administrators only have vague concepts about RAID technology, we will share with you the basic raid knowledge and the most common RA