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Vol. 4 No. 3 May 2005

Definition: Perpendicular recording

Perpendicular recording: A new approach to writing on magnetic media that aligns bits vertically, perpendicular to the disk, rather than parallel to the media, as is the case today. In theory, perpendicular recording should enable higher recording densities as it allows bits to be packed closer together. Last month, disk drive manufacturer Hitachi Global Storage Technologies (HGST) announced it will deliver drives based on perpendicular recording by 2007. With areal densities predicted to be approximately 230Gb/in2, HGST expects to deliver a 1TB 3.5-inch hard drive and a 20GB 1-inch microdrive. For a Schoolhouse Rock-inspired animation explaining the technology, see www.hitachigst.com/hdd/research/recording_head/pr/PerpendicularAnimation.html.

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Features in this issue

  • Real-World DR

    by  Marc Staimer

    Storage administrators often ask what their peers are doing to solve DR problems. However, information of this type is usually difficult to make public. These case studies have a central theme: Increasing data levels and stricter compliance regulations are forcing companies to look to newer technologies to solve their growing DR and backup pains.

  • Build a winning storage budget

    by  Dick Benton

    This tip offers advice on taking a business-plan approach to the process of building a storage budget.

  • Virtualization at your service

    New twist on virtualization

Columns in this issue

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