Mobile Vista to require hybrid disks

Microsoft's mobile Vista will encourage notebook users to change to hybrid hard drives, which combine spinning disk and flash memory, according to a Microsoft requirements' document.

"Hybrid disk drives or systems that implement a hybrid disk drive must meet the requirements outlined here. This requirement will go into effect for premium mobile systems in June 1 2007," the document stated. The requirement is: "A minimum of 50-MB NV Cache must be implemented in the H-HDD and exposed to Windows."

Both Samsung and Seagate are developing such hybrid drives. The idea behind them is that the notebook's battery life can be extended as the disk is spun up only when data in the cache needs refreshing or writing to the hard drive.

Another benefit is that system boot time can be significantly speeded up.

The Microsoft document, available by zip archive download states that: "Specific information is available in the white paper titled Hybrid Hard Disk Support in Windows Vista. The white paper can be obtained by sending email to"

The document also notes changes to parallel SCSI support for a Windows Server failover cluster: "The way in which storage is managed on a Windows Server failover cluster is radically evolving. Fibre Channel, iSCSI, and SAS storage must support the new SCSI-3 persistent reservation commands to work correctly with failover clustering because the legacy reserve/release/reset mechanism is no longer used. Parallel-SCSI is no longer a supported storage type for shared failover cluster storage. This section outlines the set of requirements for using storage for failover clustering."

Join the newsletter!

Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Chris Mellor
Show Comments


James Cook University - Master of Data Science Online Course

Learn more >




Back To Business Guide

Click for more ›

Most Popular Reviews

Latest Articles


PCW Evaluation Team

Louise Coady

Brother MFC-L9570CDW Multifunction Printer

The printer was convenient, produced clear and vibrant images and was very easy to use

Edwina Hargreaves

WD My Cloud Home

I would recommend this device for families and small businesses who want one safe place to store all their important digital content and a way to easily share it with friends, family, business partners, or customers.

Walid Mikhael

Brother QL-820NWB Professional Label Printer

It’s easy to set up, it’s compact and quiet when printing and to top if off, the print quality is excellent. This is hands down the best printer I’ve used for printing labels.

Ben Ramsden

Sharp PN-40TC1 Huddle Board

Brainstorming, innovation, problem solving, and negotiation have all become much more productive and valuable if people can easily collaborate in real time with minimal friction.

Sarah Ieroianni

Brother QL-820NWB Professional Label Printer

The print quality also does not disappoint, it’s clear, bold, doesn’t smudge and the text is perfectly sized.

Ratchada Dunn

Sharp PN-40TC1 Huddle Board

The Huddle Board’s built in program; Sharp Touch Viewing software allows us to easily manipulate and edit our documents (jpegs and PDFs) all at the same time on the dashboard.

Featured Content

Product Launch Showcase

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?