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1. Commentary
- Will Flash Memory Replace Hard Drives?

2. From the Community
- Driver Causes Memory Leak in Windows Storage Server 2003

3. New and Improved
- Promise Technology Launches SAS Systems
- Tell Us About a Hot Product and Get a T-Shirt!

4. Windows IT Pro Resources

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==== 1. Commentary: Will Flash Memory Replace Hard Drives? ====
by Elliot King, eking@loyola.edu

The recent release of Apple's iPod nano and its use of flash memory instead of a hard disk signals what promises to be a tectonic shift in storage over the next several years. Taking a long view, even with all the advances in storage capacity and management capabilities over the years, storage media itself doesn't change all that often. Since the beginning of computing, storage has evolved from tape to floppy disks to hard disks, with optical media used for certain specific applications. Since hard drives emerged as the dominant storage medium, the major technological advances have been in capacity, speed, form factor, and, of course, cost.

Increased hard-drive storage capacity at reduced costs has been one of the major enabling technologies of computing as we know it. This capacity has allowed application software to become more complex and is the repository for many of the terabytes of the data currently being generated and stored. But in years to come, in personal computing devices such as PCs, flash will be a formidable competitor to hard-drive technology.

The use of flash memory has exploded through the emergence of digital cameras and MP3 players. It's being incorporated into cell phones and a wide array of other consumer electronics devices. The mass market for flash has led to an extremely aggressive development trajectory and rapidly falling prices. Samsung, one of the major flash vendors, has announced a 16GB flash unit. With analysts projecting flash capacities to double yearly, within 2 years 64GB flash memory should be available. And 64GB represents quite a bit of storage, even in today's data-saturated environment. By 2007 or 2008, flash with 128GB capacity should be ready.

Although it's more costly per gigabyte than hard drives, flash has some key advantages. First, since it isn't a mechanical device, flash is less prone to failure. For many PC users, the hard drive represents the key point of failure in their systems. They'll find a more-reliable storage medium very attractive.

Second, flash uses less power, and power consumption has become a key design criteria at almost every level of computing. Finally, flash memory takes up less space. The iPod nano demonstrates consumers' love for that sleeker and more elegant design that a smaller storage device enables.

Flash memory is developing quickly, but hard-drive technology isn't standing still. Hard-drive manufacturers are optimistic about a new technology called perpendicular magnetic recording (PMR) that could exponentially increase hard-drive capacity. Seagate Technology and Hitachi Global Storage have signaled their intention to introduce 2.5-inch PMR drives aimed at the notebook market.

Moreover, research from Current Analysis shows a marked increase in the sales of 100GB and 250GB hard drives in the US PC market over the last couple of months. According to Current Analysis, 250GB hard drives now represent more than 10 percent of the market, while 100GB drives account for nearly 20 percent of the market, just a few percentage points less than the most prevalent 80GB drives.

What does it all mean? First, it seems clear that flash will increasingly find its way into personal computing devices. The potential benefits of increased reliability, lower power consumption, and improved design will be more compelling than the drawbacks of somewhat smaller storage capacities and perhaps some additional costs.

Second, flash's smaller storage capacity could lead organizations large and small to encourage their users to store more of their information on large shared disks. Overall, this could be a positive development, giving central administrators more control over backup and other computing best practices that individual users too often ignore.

On the other hand, as users become more comfortable with flash, they'll increasingly use portable pen or thumb drives to take their data with them, giving administrators less control over what might be valuable data.

The increasing use of flash memory for storage should have a major impact on companies' storage infrastructure over the next 2 to 3 years. But if administrators don't monitor flash developments now, before they know it, users could be walking around with large amounts of sensitive data on unsecured flash drives as they adjust to having more constrained local storage on the desktop.

==== 2. From the Community ====

Driver Causes Memory Leak in Windows Storage Server 2003

On a system with Windows Storage Server 2003 installed, during activities in which numerous files are accessed, such as file backup, the qafilter.sys driver might leak paged-pool memory. This memory leak could affect stability, possibly cause blue-screen errors, and possibly cause the system to become unresponsive. To learn more about the problem and how to obtain a hotfix for it, go to http://support.microsoft.com/?kbid=840141 .

==== 3. New and Improved ====
by Anne Grubb, products@windowsitpro.com

Promise Technology Launches SAS Systems

Promise Technology today announced its first Serial Attached SCSI (SAS) storage systems for enterprise applications. The Promise VTrak J-Class SAS storage systems will support both enterprise SAS and Serial ATA (SATA) drives in the same enclosure, to serve enterprise customers that have a range of storage requirements. The VTrak J300s features dual redundant I/O modules--each with two host ports and one expansion port--power supplies, and cooling modules. The 12 hot-swappable drive trays support SAS or high-capacity SATA drives or both simultaneously. This flexibility lets enterprise customers standardize on one system for all three application data types: transactional, high-bandwidth and reference data. The VTrak J300s also provides a command-line interface that an admin can use to specify SAS cable length. The ability to specify cable length aids in adjusting signal strength, thereby helping to maintain high-bandwidth performance and signal quality and integrity and minimizing the data error rate when longer cables are used. Suggested list prices start at $2899 for a single I/O module model without drives. For more information about the product, contact the vendor on the Web:
http://www.promise.com

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==== 4. Windows IT Pro Resources ====

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==== Resources and Events ====
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Get Ready for the SQL Server 2005 Roadshow in Europe - Get the facts about migrating to SQL Server 2005!

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We've all heard about legal and regulatory requirements, but there are other types of compliance that might also affect you - specifically email compliance. In this free Web seminar, you'll get insights into compliance and policy issues that you need to know about, as well as suggestions on what to look for when implementing your compliance strategy and more! Register today!
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Get the Most from Your Infrastructure by Consolidating Servers and Storage

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Deploy VoIP and FoIP Technologies - Win A Starbucks Gift Card

Voice over IP (VoIP) is the future of telecommunications, and many companies are already enjoying the benefits of using VoIP networks to significantly reduce telephone and facsimile costs. Join industry expert David Chernicoff for this free Web seminar to learn the ins and outs of boardless fax in IP environments, tips for rolling out fax and integrating fax with telephony technologies, and more. Attend, and you could win a Starbucks gift card!
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All High Availability Solutions Are Not Created Equal - How Does Yours Measure Up?

In this free, on-demand Web seminar, you'll get the tools you need to ensure your systems don't go down. You'll learn what solutions help you take preemptive, corrective action without resorting to a full system failover and that perform a non-disruptive, automatic switchover to a secondary server in extreme cases.
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