Sony's 185TB tape: What does it mean for storage?

Summary:The R&D guys at Sony announced a real breakthrough: Nanotech that enables uniform crystalline orientation on tape - and ultra-high density. Will it save tape?

This is cool technology: Sony researchers developed a soft magnetic underlayer using sputtering, a deposition technique commonly used for chips. Here's a Sony diagram of the tape cross-section:

Courtesy of Sony Corporation


The underlayer made it possible to deposit 7.7nm magnetic particles uniformly on the tape. The particle's small size and uniformity enabled the record-smashing 18.5GB/in<sup>2</sup> density.

The Storage Bits take
Demonstrating this density is a great start: It gives customers a reason to stay with tape for the next 10 years. But unless Sony can accelerate time to market, we're not likely to see it in a product.

Must See Gallery

Six clicks: Alternatives to Microsoft Office for the iPad

Microsoft Office for the iPad is a very good suite, but may be overkill for some users.

New tape formulations also require new heads optimized for the nanotechnology. New heads are complex and expensive to develop.

The read/write electronics will also have to be able to handle 74 times more data if tape speed remains constant. Tape drives will have to achieve even higher precision required for much denser tracks — and precision mechanics are not easy or cheap.

They'll also have to answer for durability and robustness. Today's LTO tapes only support 200 complete reads or writes, making 3-bit per cell flash look like granite by comparison. And how will the tape hold up in long-term storage?

While the economics of the tape business are trending against it, this is a magnificent technical achievement. It shows us what is possible with this venerable media type, but not what is likely.

Comments welcome. Where would 185TB tapes make sense in your organization?

Topics: Storage, Hardware


Harris has been working with computers for over 35 years and selling and marketing data storage for over 30 in companies large and small. He introduced a couple of multi-billion dollar storage products (DLT, the first Fibre Channel array) to market, as well as a many smaller ones. Earlier he spent 10 years marketing servers and networks.... Full Bio

zdnet_core.socialButton.googleLabel Contact Disclosure

Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.

Related Stories

The best of ZDNet, delivered

You have been successfully signed up. To sign up for more newsletters or to manage your account, visit the Newsletter Subscription Center.
Subscription failed.