Traditional Culture Encyclopedia - Traditional stories - What is the actual reading and writing rate of hard disks SATA, SATA 2 and SATA 3?
What is the actual reading and writing rate of hard disks SATA, SATA 2 and SATA 3?
The actual read-write rate of hard disk SATA 2.0 is 300MB/s and the bandwidth is 3gb/s.
The actual read-write rate of hard disk SATA 3.0 is 600MB/s and the bandwidth is 6 GB/s.
Extended data:
Serial ATA adopts serial connection mode, and serial ATA bus adopts embedded clock signal, which has stronger error correction ability. Compared with the past, its biggest difference is that it can check transmission instructions (not just data) and automatically correct errors when found, which greatly improves the reliability of data transmission. The serial interface also has the advantages of simple structure and hot plug support.
Each SATA hard disk storage node consists of a memory control interface MCI and a SATA hard disk controller. MCI is responsible for generating, encapsulating or decapsulating message packets according to the message frame format, and extracting and parsing operation commands for accessing storage nodes according to the received message packets, including initialization, setting storage node power saving mode, sleeping or waking up, reading and writing memory, etc.
References:
Baidu encyclopedia -SATA hard disk
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