Hard drive manufacturers to inspect were Western Digital 936 units, Seagate 559 units, Hitachi 211 units, Toshiba 151 units, Samsung 123 units, and Maxtor 27 units. to 10 TB.
As a result of examining hard drives that were not damaged by external influences, the average operating time to failure was only 2 years and 10 months. Additionally, the 2,007 failed hard drives had an average of 1,548 bad sectors. “1,548 bad sectors across hundreds of millions or billions of hard disk partitions may seem like a small number, but it quickly increases the error rate and increases the risk of data corruption,” says Secure Data Recovery.
After researching the cause of the error, we found that the five most durable and resilient hard drives from each manufacturer were manufactured before 2015. At the same time, most hard drives with the durability and resilience the lowest from each manufacturer were products made after 2015.
Secure Data Recovery cites the pressure to continually improve storage performance as a factor leading to tough design decisions and trade-offs. For example, hard drive manufacturers had to reduce the width of the platter to 3.5 inches or 2.5 inches to better fit PCs and laptops. However, experts point out that the microscopic arrangement of read and write heads and platters in the case reduces the distance between moving parts, which affects mechanical damage and wear resistance.
According to Secure Data Recovery, another reason for premature hard drive wear is the change from CMR (Conventional Magnetic Recording) to SMR (Shingled Magnetic Recording). With SMR, tracks on disk are compressed to look like overlapping tiles, increasing usable space on the platter. This technology makes it possible to create hard drives larger than 20 TB, but due to the complex design and data management requirements, the drives are subject to wear and logical errors.
editor@itworld.co.kr
