2025年2月14日 · The HDMR is a next-generation recording technology that involves heat-assisted writing and bit-patterned media (BPM) that promises to achieve areal densities of around 8 Tb/inch^2 and beyond...

There will be more after HDMR, and we’re looking at all kinds of new and exciting storage technologies to continue to meet the needs of the world’s insatiable demand for low-cost, high-capacity reliable storage.

Heat Assisted Magnetic Recording (HAMR) The next generation of enterprise hard drive capacity. What is HAMR? As the Data Age emerges, the insatiable hunger for greater storage capacity accelerates at an astronomical rate. The capacity of hard drives needs to continue increasing to meet the demands of data growth.

Heat-assisted magnetic recording (HAMR) (pronounced " hammer ") is a magnetic storage technology for greatly increasing the amount of data that can be stored on a magnetic device such as a hard disk drive by temporarily heating the disk material during writing, which makes it much more receptive to magnetic effects and allows writing to much sma...

2025年2月15日 · Western Digital plans to introduce its first HAMR-based HDDs in 2026, with initial capacities of 36TB for conventional magnetic recording (CMR) and 44TB for shingled UltraSMR recording. The company...

2025年2月22日 · By 2026, Western Digital says its HDD capacity will reach 36TB-44TB thanks to HAMR technology which uses laser heating to temporarily reduce disk coercivity. This allows for smaller magnetic...

2025年2月15日 · HAMR (Heat Assisted Magnetic Recording,热辅助磁记录技术)采用了一种新型的介质磁技术，数据颗粒位的占用空间会更小，密度也会相应增加，从而达到提升容量的目的，同时保持磁稳定和热稳定。 在需要写入新数据的时候，磁头上激光二极管就会瞬间在颗粒位增加热量，使得单个颗粒位实现磁极性完成反转，从而完成写数据的过程。 这个加热/冷却完成数据存储的过程持续的时间非常短，不到1ns（部分学术研究数据约150ps）， 原则上对硬盘整体的稳定 …

本报告旨在深入剖析2025年HDD技术的发展方向，重点讨论叠瓦式磁记录（SMR）、环境责任、容量提升策略及消费者存储需求的变化。

2025年2月11日 · 分层存储模型（Tiered Storage Model） 1. Tier 1：NVMe SSD • 最高性能，适合对 存储性能 要求极高的应用场景。 • 代表超 高性能存储，速度最快，价格最高。 2. Tier 2：HDD → QLC（QLC逐渐占据优势） • 性能较高，使用HDD和QLC（四级单元闪存），适合性能需求较 …

文章讨论了HDD通过叠瓦式磁记录技术SMR和热辅助磁记录HAMR进行容量提升的努力，特别关注了SMR的局限性和HAMR在高容量硬盘上的挑战，指出HDD在2024年可能迎来回暖，但与SSD的决战可能要到2028年。