Seagate: There are misunderstandings about HAMR technology, and its reliability has reached the same level as PMR hard drives

News from this site on April 20, Seagate recently released a blog post emphasizing that after years of testing and optimization, the reliability of heat-assisted magnetic recording (HAMR) has reached the level of traditional PMR storage.

Seagate stated in the press release that most people have misunderstandings about the readiness, quality and reliability of HAMR technology. Its mean time between failures (MTBF) and modern vertical magnetic Recording (PMR) hard drives are the same.

Attached to this site is the following content from a Seagate press release:

Seagate helps customers meet growing data storage needs by implementing HAMR and related technologies and increasing magnetic density. Magnetic density is a measure of how much data can fit on a hard drive platter, usually expressed in units of "TB/disk."

Seagate has been conducting simulated field use testing of Mozaic 3 (Magic Color Box 3) products since 2016 and has witnessed first-hand the step-by-step optimization of key components. The result has been a 50% improvement in reliability over the past two years, bringing it to the level of traditional PMR drives.

We have tested thousands of Mozaic 3 (Magic Color Box 3) read/write heads and the results show that the data can be reliably transferred for more than 6,000 hours (about 8 months), which is equivalent to a single head transferring 3.2 Petabytes of data. The results of this test showed that more than 20 times the amount of data was transferred compared to a typical nearline hard drive.

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