Today, live e-commerce and short videos are in full swing and have become a hot business topic in the past two years. The data volume of platforms represented by Taobao Tmall, Pinduoduo, Douyin, Xiaohongshu, and video accounts has shown explosive growth. According to IDC predictions, the total amount of global data will increase to 175ZB (1ZB=1 trillion GB) in 2025, approximately 10 times that of 2016. In order to meet the increasing demand for server data storage, RAID cards have become a common and crucial storage solution.
What is RAID?
RAID (Redundant Arrays of Independent Disks) is a redundant array of independent disks and is a disk array technology. The principle is to use data redundancy to form an array of multiple hard drives to improve data storage capacity and I/O performance. Simply put, RAID allows multiple disks to work together in a coordinated manner to unleash the full performance of the disk. RAID technology is divided into soft RAID and hard RAID. Compared with the two, hard RAID has better performance and more stability than soft RAID. Commonly used RAID levels include RAID 0, 1, 5, 6, 10, JBOD, etc.
What are the advantages of RAID cards?
RAID card, also known as array card, is a board card that implements RAID function. It is usually installed on the PCIe slot of the computer motherboard and is responsible for processing the distributed storage and reading and writing of data. RAID cards are widely used to store large amounts of data through interfaces such as SATA and SAS. Its main advantages are reflected in the following four aspects.
※※ Improve reading and writing performance
By combining multiple disks into an array, RAID cards can take advantage of parallel processing and data distribution to increase the read and write performance of the storage system. For example, RAID 0 stores data blocks dispersedly on multiple disks to achieve parallel reading and writing of data and improve reading and writing performance; RAID 10 combines the advantages of RAID 1 and RAID 0, providing data redundancy and parallel reading and writing. Improved performance.
※※Expand storage capacity
The RAID card has flexible scalability and can connect and respond to SSD hard drives (solid-state drives). It also allows disks to be added or replaced in the storage system to expand or upgrade the storage capacity without shutting down the server or interrupting services, thus forming a high-end High-performance large-capacity storage solution.
※※ Provide fault tolerance function
Through different RAID levels, RAID cards can achieve data fault tolerance and redundancy. For example, RAID 1 can ensure that data will not be lost due to hard disk failure through mirror backup; RAID 5 and 6 provide fault tolerance through data verification to achieve data recovery, which greatly improves the fault tolerance of the RAID system.
※※ Improve server stability
The built-in processor on the RAID card eliminates the need for server CPU computing, leaving precious CPU resources for the main application software. At the same time, after the RAID card is separated from the operating system, it can perform various operations on the hard disk, which greatly improves the stability of the server system.
Facing the challenge of massive data, the role of RAID cards is obvious. LR-LINK has a series of RAID card solutions that support SATA, M.2, SAS and other interfaces to help users flexibly respond to storage expansion and meet the needs of servers, storage devices, The data storage and protection requirements of terminal applications such as workstations and hardware accelerators are widely used in big data, video surveillance, game development, scientific research and other fields.
