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This article will explain in detail what is the difference between raid10 and raid5 performance, the content of the article is of high quality, so the editor will share it with you for reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

The difference between raid10 and raid5 performance: 1. The utilization rate of RAID10 is [50%], while that of RAID5 is [75%]. 2. The security of RAID10 is higher than that of RAID5;3, and RAID5 is better than RAID10 in terms of continuous writes.

Differences in raid10 and raid5 performance:

The higher the space utilization when RAID10 is more secure than RAID5,RAID5.

The specific differences between the two:

1. Comparison of security: the security of RAID10 is higher than that of RAID5. Through simple analysis: when disk 1 is damaged, for RAID10, only the corresponding mirror disk of disk 1 is also damaged, it will lead to RAID failure. But for RAID5, any failure of any of the remaining 3 disks will lead to RAID failure.

2. Comparison of space utilization: the utilization rate of RAID10 is 50% and that of RAID5 is 75%. The greater the number of hard drives, the higher the space utilization of RAID5.

3, comparison of read and write performance: performance differences in read operations: RAID10 can read valid data on the number of 4 disks (check information distributed on all disks), so the performance of the two in reading should be basically the same.

4, continuous write performance difference: in the process of continuous write operation, if there is a write Cache, and the algorithm is no problem, RAID5 is better than RAID10, although there may not be much difference. It is assumed here that the storage is of a certain size, that there is enough Cache to write, and that there is no bottleneck in calculating the CPU of the check.

Extended data:

RAID5 stores the data and the corresponding parity information on each disk that makes up the RAID5, and the parity information and the corresponding data are stored on different disks, in which any Nmuri disk stores complete data, that is to say, there is a space equivalent to the capacity of a disk to store parity information.

Therefore, when a disk of RAID5 is damaged, it will not affect the integrity of the data, thus ensuring the security of the data. When the damaged disk is replaced, RAID will automatically use the remaining parity information to reconstruct the data on the disk to maintain the high reliability of RAID5.

To make a raid 5 array, all disks must have the same capacity, and when the capacity is different, the minimum capacity will prevail. It is better that the speed of the hard disk is the same, otherwise the performance will be affected, and the available space = the number of disks, there is no independent parity disk, all the verification information is distributed on all disks, taking up only one disk capacity.

In simple language, at least three hard drives (or more) are used to build a RAID5 disk array. When data is written to a hard disk, it is written directly to the track of the hard disk according to the way of one hard disk. If it is RAID5, this data writing will be divided into three parts according to the algorithm, and then write to these three hard disks. At the same time, check information will be written on the three hard disks.

When reading the written data, the contents of the data will be read from three hard drives respectively, and then checked by the verification information. When one of the hard drives is damaged, the data content of the third hard disk can be calculated from the data stored on the other two hard drives.

In other words, raid5 storage allows only one hard disk to fail, and it needs to be replaced as soon as possible in case of failure. When the failed hard drive is replaced, the data written during the failure is rechecked. If there is another piece of failure that is not solved, it will be catastrophic.

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