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.

An Open Letter to Global 1000 CIOs

by Lisa Terrenzi - Chief Executive Officer 28. January 2011 11:41

Dear CIO,

One of the most positive things to come out of the recession is a deeper appreciation of how much an efficient IT impacts corporate competiveness and profitability. And no wonder: envisioning and acting upon business opportunities requires having a powerful and flexible data center to work with.

In the real world, most networks are patchworks of legacy and cutting edge tech. Despite the best efforts of IT managers, IT investments take longer to recover and cost of operations creeps steadily upward.

Imagine a product that automatically ensured Windows systems ran at the peak speeds they were designed to deliver, reliably, using less energy and for a longer lifespan. Imagine the effect on operating costs and value return.

Hundreds of your peers in Global 1000 companies and Federal and State agencies don’t have to imagine this because this product exists and they refuse to run their networks without it: Diskeeper performance technology for Windows systems.

I am the CEO of the company that makes Diskeeper and I run the team behind the product. We’ve been around for 30 years; we’re in for the long term and we’d like an opportunity to help you achieve your IT goals faster.  

A simple evaluation on your IT network will show you the Diskeeper business value far better than I can say. Here is a link to quickly download a trial evaluation of Diskeeper. I suggest you have your IT manager test it out and report back to you.


Lisa Terrenzi


Diskeeper Corporation   

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Defrag | Diskeeper

Faster Backups/Archiving/Dedupe/DR success with Diskeeper and V-locity

by Colleen Toumayan 27. January 2011 03:29

"Spokane Regional Health District uses CommVault Simpana backup/archiving/disaster recovery software installed on a dedicated server with 37TB of SAS attached storage.


We perform daily full and incremental backups of all our servers. The data backup is disk-to-disk-to-tape and is deduplicated as it is saved on the SAS storage. The deduplication process can create a very large number of file fragments, sometimes over 1,540,000 fragments on a 2TB disk array. With Diskeeper EnterpriseServer automatic defrag running the response time of the arrays is approaching 0.02 second delay due to fragmentation. This has reduced our backup time by approximately 25 percent for any D2D2T job. 

SRHD also uses Microsoft Hyper-V and currently has 31 virtualized servers running on an Intel Modular Server. There are 72TB of storage available to the Modular Server via SAS connections featuring dual path IO. All of the data on the SAS arrays is maintained in RAID 60 logical disk drives. Since setting up V-locity, which has built-in support for VHD (virtual hard disks), with automatic defragmentation, our VHDs very seldom show any fragmentation. 


The solutions also have the intelligence to monitor disk IO and the defragmentation will pause to prevent IO latency affecting performance. They are set and forget applications which perform a very well without impact on our server response times."

-Larry Smith, Spokane Regional Health District


Defrag | Diskeeper | SAN | V-Locity

Is it wrong/unsafe to defrag an SSD?

by Michael 18. January 2011 08:09

Last week I received an email via the blog that I thought would be good to publish. Graham, a Diskeeper user from the UK asked: "I have been advised that it is wrong to defrag an SSD hard drive. So is it safe to run Diskeeper now that I have a 128Gb ssd in my computer?"

The popular theory that “there are no moving parts” does not accurately lead to the conclusion that fragmentation is not an issue. There is more behind the negative impact of fragmentation than seek time and rotational latency on electro-mechanical drives. Most SSDs suffer from free space fragmentation due to inherent NAND flash limitations. In more severe cases (likely a server issue) the OS overhead from fragmentation is impacted as well.

As always, the “proof is in the pudding”. Tests conclusively show you can regain lost performance by optimizing the file system (in Windows). We have run and published numerous tests (and here -done with Microsoft), but so have many in various tech forums (if you would prefer independent reviews).  

In short, it is advisable to run an occasional consolidation of free space. The frequency you would want to run this depends on how active (writing and deleting files) the system using the SSD is. It also depends on the SSD. A latest gen 128GB SSD from a reputable vendor is going to be all-around better than a 16-32GB SSD from 2-3 years ago.

The HyperFast product (a $10 add–on to Diskeeper) is designed to consolidate free space when it is needed, without “over” doing it. HyperFast is unique as you do not ever need to manually analyze or manually run, or even schedule it. It is smart enough to automatically know what to do and when. A common concern is that defragmentation can wear out an SSD. While that is unlikely unless it is a poorly written defragmenter, the general premise is correct, and is also something HyperFast takes into consideration by design.

Abov pic: You can always add HyperFast anytime after your purchase of Diskeeper.


More reading: 

Here are a few blogs we have done on SSDs.

While a bit dated, here is one product review.


SSD, Solid State, Flash

Flash Cache Technology: ExpressCache

by Michael 13. January 2011 04:35

ExpressCache is a new, presently shipping, OEM product that we announced at the CES trade show last week.

ExpressCache is a software storage performance solution that requires both an HDD and an SSD (smaller affordables drives are all that is needed). In short, ExpressCache effectively combines the two drives, greatly increasing performance (typically by a factor of 2 or 3) by caching the frequently used data on the SSD!

More Info:

You can read more about ExpressCache here.

Future possibilities:

There are plans to broaden the supported platforms and potentially expand the availability of the product beyond OEMs. The time frame for that is undecided, but it may be later this year. We'll certainly announce any such events on our website and on the blog, so stay tuned.


SSD, Solid State, Flash

Diskeeper 2011 outmuscles fragmentation

by Colleen Toumayan 12. January 2011 09:29

Bruce Pechman the "Muscleman of Technology" stopped by out booth at a CES media event. We talked a bit about the upcoming new Diskeeper release and he was kind enough to express his enthusiasm to us in writing so we could publish it:

As a TV Technology Journalist, high-end computer enthusiast, hard core gamer, and a person who is consistently buying the fastest computer money can buy, I need my computers to have super fast performance without any bottle necks every minute of every day.

From expensive SSD’s, to traditional rotational Hard Disk Drives—in every combination you can think of, my computers always run flawlessly and speedily thanks to an awesome software program called Diskeeper!

Right now my primary computer is the “Maingear Shift” with an Intel i980 Extreme Processor overclocked to 4.3 Ghz, it’s almost $6,000 and I can’t tolerate any slowdowns from my dual Western Digital 10,000 RPM VelociRaptors hard drives.

The facts are really quite simple. All types of computers will experience disk fragmentation and it can definitely worsen over time if nothing is done to prevent it. Disk fragmentation is the culprit for many annoying computer symptoms such as slow application performance, long boot times, unexplained system slow downs, crashes, etc. Diskeeper prevents these issues from cropping up.I have been religiously using Diskeeper over the years so my computers can realize the full benefits of system performance and reliability...and I can’t wait to install the new Diskeeper 2011—just set it and “forget about it”!

Whether I’m on deadline, overclocking an Intel Extreme processor, or playing Mafia II with every performance benchmark set to maximum settings, Diskeeper is a must install on every computer I own. 

Bruce Pechman, The Muscleman of Technology ( America’s Best-Built Technology & Fitness Television Personality Muscleman of Technology, LLC Bruce Pechman, The Muscleman of Technology® (Muscleman of Technology, LLC), is a Consumer Technology and Fitness Personality appearing regularly on “Good Morning San Diego” (KUSI-TV) and the KTLA Morning Show in Hollywood. Bruce’s moniker reflects his 20 years of industry technology expertise, and 30 years of fitness training. He has made over 250 live TV appearances on major network television. Visit him at 


Defrag | Diskeeper | SSD, Solid State, Flash


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