Condusiv Technologies Blog

Condusiv Technologies Blog

Blogging @Condusiv

The Condusiv blog shares insight into the issues surrounding system and application performance—and how I/O optimization software is breaking new ground in solving those issues.

HyperFast blog part 2

by Michael 30. September 2008 17:31
The Apacer-led announcement about the SSD+ Optimizer release last week was attended by almost 50 media from the Asia Pacific regions and nearly 200 of Apacer's customers (manufacturers of PCs, hand-held computers, etc....). Diskeeper and Apacer presented both business and technical presentations and field questions for several hours. One handout was a new white paper which you can read here.

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It's Flashtastic! :-)

by Michael 22. September 2008 20:53
We've been heavily involved in solid state storage performance and reliability technology for some time - we're convinced it is the future of high-performance storage. Recent announcements by Baidu and Google to "go SSD" on servers are evidence of enterprise commitment to NAND Flash. And as great as the hardware is, there's always a place for software to optimize that hardware. Below is a press release on a recent partnership with Apacer, a global SSD power. On a personal note, we're very proud to add a fellow customer-focused company like Apacer as a technology partner. Like Diskeeper, Apacer prides themselves on providing solutions that improve conditions for their customers. APACER INTRODUCES SSD+ OPTIMIZER Powered by Diskeeper Performance Enhancement Software - HyperFast(tm) (Taipei, Taiwan) September 23, 2008 - Apacer, a global leader in memory modules, announced today the introduction of SSD+ Optimizer, the world's first Solid State Drive (SSD) optimization solution with HyperFast technology from performance and reliability innovator Diskeeper Corporation(R). Apacer collaborated with the performance and reliability software specialist to cater to consumer demand and market trends. This pioneering alliance creates a new model of partnership between software and hardware firms designed to increase SSD reliability and durability, creating an innovative new generation of SSD performance solutions. SSDs implemented in a general purposes operating system (OS) will deteriorate in performance over time. In fact, performance can drop as much as 80% in as little as six months of normal use. HyperFast, is the software-based solution developed by Diskeeper exclusively for the new SSD+ Optimizer product. Designed to preemptively optimize the storage device at the OS level, HyperFast maintains peak performance for the extended life of the drive. HyperFast's proprietary operations utilize enterprise-proven technology called InvisiTasking(R). InvisiTasking employs only unused system resources to operate with zero overhead on the system, therefore transparently increasing the speed, performance and reliability of the system. The SSD is a revolutionary application of NAND flash memory, which overshadows traditional hard disk drives in terms of weight, size, temperature control, etc. SSD's are foreseen to be the wave of the future in data storage. SEC marketing, an industry research institute, estimates the total market value of NAND Flash will amount to NT$8 billion by 2010 and its compounded annual growth rate is projected to reach 360% between 2006 and 2011. SSD's will be the key to boosting the growth of the NAND Flash industry. As with other technologies, SSD's have had technical challenges to overcome, such as the limited number of erase-write cycles that undermine the SSD's durability. Apacer and Diskeeper specifically address this issue with key design elements employed in the development of the SSD+ Optimizer. By intelligently eliminating performance degrading free space fragmentation, HyperFast Flash technology actually reduces the aggregate erase-write cycles the SSD would otherwise incur during normal usage. In addition to performance benefits, SSD+ Optimizer offers increased SSD longevity. "Diskeeper respects the profession and experiences of Apacer in the terrain of storage as well as its leadership in the SSD market. We are happy to see that HyperFast has helped Diskeeper to bring its storage optimization technologies into a brand new area of application," said Lawrence Cheung, General Manager, Diskeeper Corporation China Ltd. "Apacer is optimistic on the development and applications of the SSD technology. We have taken painstaking efforts in R&Ds so that the parameters and performance of SSD products could be fully enhanced. We strived to map out a most comprehensive product line for the industry," said Austin Chen, President of Apacer. "Apacer values its constant pursuit for quality and innovation. Through the integration of software and hardware capabilities, Apacer can now offer SSD products with higher added-values and come up with solutions that offer extraordinary competitiveness. Looking into the future, Apacer aspires to provide consumers with technologies, products and services of superior quality along with full technical support and product integrations." The SSD+ optimizer is projected to launch soon. Apacer will provide its customers with all the necessary product information and technical support. About Apacer Technology Inc.-Access the best: Apacer Technology Inc. is a global leader in memory module and digital storage for both hardware and software research and development. Since the company's inception, Apacer's focus on recording, reproducing and retaining digital data of all kinds, allows our customers to "Access the best" memory products and services. Apacer is the fifth largest independent DRAM module supplier with a global sales and marketing network to support distributors, OEMs, and retail customers. Apacer has built a reputation for memory modules that offer high performance, reliability and value. Apacer also provides some of the newest and most exciting digital mobile entertainment devices that play, record, share and store the digital content that is part of everyday life. For more information about Apacer, please visit www.apacer.com About Diskeeper Corporation -Innovators in Performance and Reliability Technologies(tm): Diskeeper Corporation is a global corporation trading in six continents. Our software products are distributed in every major country in the world. With over 30 million licenses sold, home users to large corporations rely on Diskeeper software to provide unparalleled performance and reliability to their laptops, desktops and servers. International operations are headquartered in California, USA. European operations are overseen out of West Sussex, England. And now, Greater China operations are managed out of Central Hong Kong. For more information about Diskeeper, please visit www.diskeeper.com

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Diskeeper Boot-time Defrag Update

by Michael 19. September 2008 00:54
We've been running a field test on the new boot-time defrag engine for the past 6 or so weeks. We apologize for any delay on releasing this, but it is due to major improvements of the code and making sure that it is flawless. The end result will be an extremely stable and reliable solution that will solve the problems you need it to; now and in the future. Some of the planned advancements in this free update are defragmentation of essentially all "metadata" (via the defrag APIs) and the ability to defragment other files which are not supported under the APIs (such as the paging file) no matter the condition on the volume. This update will add a significant amount of functionality. So, all my blathering aside, assuming all goes well with testing we should have this update for current Diskeeper 2008 users in the coming month.

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Inside SecureDelete

by Michael 18. September 2008 22:56
“A group of MVPs have been discussing disk wiping. Could you please provide more details of exactly how your wipe is performed and how it meets NSA/DOD standards?” Undelete 2009 uses the following DoD overwrite patterns: 1. Bit pattern #1 = Any Bit Pattern, such as ‘00110101’ 2. Bit Pattern #2 = A Bit pattern that is a Ones compliment of Bit pattern #1. For the above case, it would be ‘11001010’. 3. Bit Pattern #3 = Just a random bit pattern

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The Fragmented Sandwich

by Michael 18. September 2008 20:34
The title is about a couple of related formulas that set the precedent for a hypotheses that defragmented hard drives are "greener". P = W / t where W = F * Δs The first formula is defined as Power is equal to Work divided by Time. The second formula define Works as equal to Force multiplied by Displacement (change of physical location). So what does all this math mean? In a hard disk drive, power is used to alter magnetic forces and move an actuator arm back and forth across a spinning platter. This is often summarized by saying that work is equal to the force acting on an object times its displacement (how far the object moves while the force acts on it). Note that only motion that is along the same axis as the force "counts", however; motion in the same direction as force gives positive work, and motion in the opposite direction gives negative work, while motion perpendicular to the force yields zero work. An analogy: Let's say you are making a PB&J sandwich. The parts you need are scattered around the kitchen (a fragmented sandwich). The bread is in a bread basket on a kitchen counter, the peanut butter is in the pantry and the jelly was opened last week, so its in the fridge. Your assembly station is a fourth location - a kitchen island. To pick up all the fragments required to make your sandwich you have to move across the kitchen in multiple actions. But, what if the parts to Lunch were all unopened and sitting next to each other in the pantry - your jar of jelly, a fresh loaf of bread, and a new jar of peanut butter. Assembly your meal would be much faster, and save you the energy/calories of hoofing around the kitchen. That said, the fat in the peanut butter and the sugar in the jelly will certainly make up for the movement - but that's off the point. On your PC/Server, file fragmentation means that more electrical power is required to spin the hard drive around and more the actuator arm back and forth across the disk. OK you say, but I'm a few pounds overweight and could use the extra few steps. I have two suggestions on that: 1. eat an apple instead, or 2. your computer isn't pudgy, it really doesn't need to be exercised to stay young and fresh.

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