Select different RAID levels

1. How to select and configure raid with the highest read/write speed and fault tolerance capability

How to select and configure raid with the fastest read/write speed and fault tolerance capability?
The following two aspects can be discussed in detail:
1. read/write speed
Raid random sequential

Level read perf write perf
0) when there are too many threads, too many threads
1) when there are too many threads, there are too many threads.
5) when there are too many threads, there are too many threads.
6. When there are too many threads, there are too many threads.

From the above table, we can see that for single-level raid, RAID 0 is read or
Excellent write performance.
Related features of raid0:
Raid0: data is segmented by means of independent access, so that multiple I/O operations can be processed concurrently. Therefore, the throughput is the largest.
Raid0 can meet performance requirements, such as for systems with high multimedia and data transmission rates.
The fastest read/write speed is required: raid0 meets the requirements based on the price and the extensive raid application.
However, data in raid0 is not redundant, and data security is not guaranteed. Its fault tolerance capability is zero.

2. Fault Tolerance

Raid level Fault Tolerance
0 none
1 worker
5 minutes later
6.

1. raid6 uses the dual-check method. When two disks fail, it can be restored. Therefore, raid6 has the strongest fault tolerance capability.
2. raid1 uses mirroring for fault tolerance. Raid1 is highly fault tolerant.
3 RAID5 uses distributed parity, and its fault tolerance capability is also good.

Based on the above read/write performance, fault tolerance analysis, and the current market
See RAID technology and application. If you want to select the fastest read/write speed
For raid with fault tolerance capabilities, you can select raid 10, raid 50, and other configuration policies. Connect
After comparison, we found that raid10 products and technologies are very mature, so we chose
Raid10.

2. How to select and configure raid with the highest fault tolerance capability

Raid6

Iii. raid with moderate speed, maximum effective capacity, and fault tolerance capability

RAID5