Heat-Assisted Interlaced Magnetic Recording

被引：22

作者：

Granz, Steven ^{[1
]}

Zhu, Wenzhong ^{[1
]}

Seng, Edmun Chian Song ^{[2
]}

Kan, Utt Heng ^{[2
]}

Rea, Chris ^{[3
]}

Ju, Ganping ^{[4
]}

Thiele, Jan-Ulrich ^{[4
]}

Rausch, Tim ^{[1
]}

Gage, Edward C. ^{[1
]}

机构：

[1] Seagate Technol, Shakopee, MN 55379 USA

[2] Seagate Technol, Singapore 139944, Singapore

[3] Seagate Technol, Bloomington, MN 55435 USA

[4] Seagate Technol, Fremont, CA 94538 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2018年 / 54卷 / 02期

关键词：

Heat-rding (HAMR); HAMR interlaced magnetic recording (HAMR IMR); HAMR shingled magnetic recording (HAMR SMR); heat-assisted IMR (HIMR); magnetic recording;

D O I：

10.1109/TMAG.2017.2748719

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Heat-assisted magnetic recording (HAMR) is the next generation hard disk drive technology that enables continued and significant areal density growth. There are currently two common architectures for the layout of tracks in hard disk drives: conventional magnetic recording (CMR) and shingled magnetic recording (SMR). In CMR, any track can be written at any time and neighboring tracks do not intentionally overlap. In SMR, the tracks are written sequentially in bands with the tracks intentionally overlapping like shingles on a roof. In this paper, we introduce a novel track layout, interlaced magnetic recording (IMR), and apply it to a HAMR recording system. With heat-assisted IMR, we observed a 31% increase in areal density over HAMR CMR whereas in a HAMR SMR architecture, we observed a 27% increase in areal density over HAMR CMR.

引用

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