Hitachi Global Storage Technologies has begun volume shipment of the Travelstar 7K200, a high-capacity, high-performance laptop hard drive with new optional data encryption technology. The new drive features up to 200GB capacity, a 22 per cent overall performance improvement over its predecessor, and improved shock tolerance, among other technical improvements. The 7200RPM Travelstar 7K200 has power consumption, heat emission, and acoustics comparable to its 5400RPM counterparts and features a Serial ATA 1.5GBps, 1.5GBps encrypted, or 3GBps interface.

Optional Bulk Data Encryption technology provides information security as data is scrambled with a key as it is being written to the disk and then descrambled with the key as it is retrieved. The Travelstar 7K200 is available immediately on Dell XPS laptops and on Alienware laptops. Customers requiring the highest capacity will be able to purchase dual hard-drive configurations with 400GB of available storage on the XPS M2010 and Aurora m9700 models.

By offering increased performance and capacity, these drives are well suited for mobile professionals who often find themselves operating on battery power for extended periods of time. Although the improved performance of the 7200RPM drive will potentially allow users to complete their tasks more rapidly, in most scenarios this incremental improvement would be more than offset by shorter battery life due to increased power consumption by the drive.

Fortunately, this is not an issue for the 7K200 given its power consumption parity with existing 5400RPM drives. As vendors continue to raise the bar for the performance of their high-end laptops, battery technology has had a more difficult time keeping up with the demand while maintaining a workable form factor. It is encouraging to see that in this case improvements in storage performance will not substantially impact battery life.

The most interesting aspect of this announcement, however, is the availability of the optional hardware-based encryption. This native-to-the-drive approach to encryption offers advantages over software encryption, which is generally not well understood by the technical layperson.

Additionally, hardware-based approaches do not add a load on the CPU in order to execute the encryption and decryption. By having all encryption and decryption activities occur simply as part of the read or write activities to the drive, they can be largely invisible to the user, which can remove a large obstacle to an effective deployment.

While encryption of laptops may initially be thought of as a means to secure data in case of loss or theft, it can also prove advantageous to IT operations. From an operations perspective simply deleting the encryption key renders the hard drive unreadable and could save considerable time in repurposing equipment to new users. This capability is offered through the Quick Erase feature and we suspect will be a capability welcomed by IT managers and support personnel who are tasked with managing laptops and safeguarding sensitive information that may be stored within.

Overall, this announcement illustrates continued improvement in laptop hard-drive performance and capability along with an appreciation for energy efficiency that should make these drives a logical solution for most corporate laptop users. Hardware-based encryption for laptop hard drives is still new, but is gaining momentum in the marketplace as witnessed by this announcement and the Seagate announcement earlier this year.

The Quick Erase feature may in and of itself be a sufficient reason for many organizations to decide on encryption simply to reduce the time and expense involved in their laptop recycling or redeployment practices. Nevertheless, we believe the security and best practices afforded by their use in highly regulated industries is a no-brainer and expect to see such deployments grow.

© Sageza Group