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.

New! Diskeeper 16 Guarantees “Faster than New” Performance for Physical Servers and PCs

by Brian Morin 26. September 2016 09:56

The world’s most popular defragmentation software for physical servers and PCs makes “defrag” a thing of the past and delivers “faster than new” performance by dynamically caching hot reads with idle DRAM.  As a result, Diskeeper® 16 guarantees to solve the toughest application performance issues on physical servers like MS-SQL and guarantees to fix sluggish PCs with faster than new performance or your money back for 90 days – no questions asked.

The market is still catching up to the fact that Diskeeper’s newest patented engine no longer “defrags” but rather proactively eliminates fragmentation with large, sequential writes from Windows to underlying HDDs, SSDs, and SAN storage systems. This eliminates the “death by a thousand cuts” scenario of small, tiny writes and reads that inflates I/Os per second, robs throughput, and shortens the lifespan of HDDs and SSDs alike. However, the biggest new announcement has to do with the addition of DRAM caching – putting idle DRAM to good use by serving hot reads without memory contention or resource starvation.

“Diskeeper 16 with DRAM caching served over 50% of my reads from DRAM and eliminated over 30% of write traffic by preventing fragmentation. Now everything is more responsive!” - David Bruce, Managing Partner, David Bruce & Associates

“Diskeeper 16 with DRAM caching doubled our throughput, so we could backup in half the time.  Our Dell Rapid Recovery backup server is running smoother than ever.” - Curtis Jackson, Network Admin, School City of Hammond

“WOW! Watch it go! I have 44GB of memory in the physical server and Diskeeper is using around 20GB of it to cache!! I can’t imagine having a server without it! Diskeeper 16 is a vastly improved version of Diskeeper!” - Andy Vabulas, Vabulas Enterprises

“Our Symantec app running on a physical server has been notoriously slow for as long as I can remember, but since adding Diskeeper 16 it has improved significantly.” Josh Currier, Network Infrastructure Manager, Munters Corporation

 “With Diskeeper 16 I can tell my workstation is more responsive with no lag or any type of hesitation. Truly SMART Technology.” - William Krasulak, Systems/Network Admin, Nacci Printing, Inc.

“Our most I/O intensive applications on physical servers needed some help, so we installed Diskeeper 16 with DRAM caching and were amazed by the performance boost!” - Victor Grandmaiter, IT Director, Fort Bend Central Appraisal District

“Diskeeper eliminated 32% of my write traffic by preventing fragmentation and cached 64% of my read traffic within idle memory. This saved my workstation over 20 hours in I/O time after 24 days of testing!” - Lou Goodreau, IT Manager, New England Fishery

“Installed Diskeeper 16 on our worst performing physical servers running ERP with a SQL database and saw an immediate 50% boost!" - Hamid Bouhassoune, Systems Engineer, Global Skincare Company

A top New York clothing brand tried Diskeeper 16 with DRAM caching on their physical servers and saw backup times with Veeam and Backup Exec drop by more than half!

Before Diskeeper Install:

8/7, 10GB, 14MB/s, 1:38

8/8, 11 GB, 13MB/s, 1:54

After Diskeeper Install:

          8/12, 13GB, 21MB/s, 1:30

        8/13, 14GB, 30MB/s, 0:58

        8/14, 13GB, 33MB/s, 0:55

        8/15, 11GB, 36MB/s, 0:44

        8/19, 17GB, 30MB/s, 1:06

 

A Large Illinois Non-Profit tested Diskeeper 16 with DRAM caching on Windows 2012R2 physical servers running CRM and accounting software with a MS-SQL backend. Note – these improvements were almost exclusively from Diskeeper 16’s write optimization engine since idle memory was not available to initiate the new caching engine.

 

See a screenshot of the new dashboard reporting that shows “time saved” from using Diskeeper 16 to eliminate fragmentation and cache reads with idle DRAM.

 

Try Diskeeper 16 with DRAM caching for 30-days -> 

 

 

 

Announcing V-locity version 5

by Robert Woolery 28. February 2014 03:10

 It is not a daily increase, but a daily decrease. Hack away at the inessentials.” - Bruce Lee

Removing the nonessential is a key element of simplicity and efficiency, yet it is deceptively difficult to accomplish. We need reminding. And then more reminding.

When I get too caught-up in what’s on my desk, in Outlook, on the calendar, I get on the phone with one of our V-locity customers and I remember what we’re doing here. Why I pull into the Condusiv parking lot every day. We hack away at the inessentials, and in doing so, we enable our customers to work better, faster, more efficiently, without buying more hardware to achieve it.

We’re very pleased to announce V-locity version 5. In this release, V-locity is now bundled with the V-locity Management Console, giving IT organizations the visibility, command, and control to optimize applications and maximize users’ efficiency—proactively managing I/O and its impact on performance across the entire environment.

Enterprise-class and cloud-ready, the V-locity Management Console enables seamless deployment and centralized management of V-locity on-premises in a virtual or physical environment, or in the cloud. With central control of assets, configuration, and performance management, admins can deploy V-locity to thousands of VMs and physical servers in just five clicks, manage a large number of licenses, and support various pricing models.

The highlights:

  • Central command and control with web-based management from a single pane of glass across geographic locations
  • Fast, non-disruptive deployment to even the most complex multi-site and hybrid environments
  • Auto-detection of virtual and physical server environments for easy asset and license management
  • Flexible pricing options from site licenses, subscription, or perpetual volume licenses
  • Single solution for virtual and physical servers
  • V-locity alert management with email notifications based on customized I/O performance profiles for any application
  • Ongoing performance validation of V-locity for ROI reporting capabilities


No more needle-in-the-haystack approach to troubleshooting. No more contending with a disjointed view of the environment. No more lack of understanding what’s happening from server to network to storage.

Maybe you’ve virtualized, maybe you’ve gone cloud, maybe you’re using VDI to ease management of so many endpoints… whatever the case—in any of these scenarios—the marketing message is always simplification.

And while simplification might be partly real, each of these strategies comes with an inherent problem: I/O. More and more I/O, which leads to serious performance degradation, more hardware to throw at the problem, increasingly formidable data centers, and more hours spent troubleshooting and stressing out. The root of the problem is I/O.

And V-locity is software that dramatically reduces I/O—literally overnight. And now it comes with the V-locity Management Console to make managing complex environments more efficient than ever.

So today I channel Bruce Lee and his thoughts on simplicity, on hacking away at the inessentials. That’s what we’re doing at Condusiv. That’s the vision of V-locity version 5. Enabling organizations to perform faster, better, simpler, happier.

Learn more about the V-locity version 5 release »

NEW V-locity 4 VM Accelerator Improves VM Performance by up to 50%

by Jeff Medina 10. December 2012 10:00

Today we are very excited to announce the release of V-locity 4 VM Accelerator. With this latest release, V-locity increases VM and application performance by up to 50% and does so without any additional storage hardware.

Let’s face it - in today’s world of virtual environments, we generate a tremendous amount of data and it’s only the beginning. In fact, findings included in a recent study by IDC titled “Extracting Value from Chaos” predict that in the next ten years we will create 50 times more information and 75 times more files.

The impact of this data explosion on server virtualization can often lead to I/O bottlenecks. This is because a physical server running multiple virtual machines (VMs) must often carry out far more I/O operations than one server running a single workload, and typical virtualization environments emulate I/O devices that run less efficiently than native I/O devices.

In essence, virtualization acts like a funnel, combining and mixing many disparate I/O streams, sending out to the disk what becomes a very random I/O pattern. To make matters worse, the more VMs are added, the more the issue is compounded as more I/O is "randomized." All of this has a very negative affect on storage performance, and renders time-honored techniques such as read-ahead buffers and caching algorithms far less effective than in conventional physical environments.

Storage I/O is the most critical issue in a virtualized environment, and can cause organizations to spend a great deal on storage, purchasing more and more disk spindles, but often using only a fraction of their capacity because of performance issues. The outcome is that, due to issues relating to performance bottlenecks in the storage infrastructure, some applications are deemed unable to be virtualized; however, a properly tuned storage environment might have accommodated those applications. So what’s the alternative? The answer is V-locity 4 VM Accelerator. 

V-locity 4 VM Accelerator provides:

  • Increased application performance up to 50%
  • Up to 50% faster access to frequently accessed files
  • Faster I/O performance without the cost of additional storage hardware
  • Increased VM density per physical server up to 50%
  • Extended hardware lifespan by eliminating unnecessary I/Os
  • Automatic and real-time operation for true “Set It and Forget It®” management 

What makes V-locity 4 so effective is its powerful toolkit of proactive technologies, including IntelliWrite,® V-Aware,® CogniSAN,® InvisiTasking® and the new IntelliMemory® RAM caching technology.

New! IntelliMemory™ Caching Technology
IntelliMemory intelligent caching technology boosts active data, improving I/O response time up to 50% or more while also eliminating unnecessary I/O operations from getting into the network or storage.

Improved! IntelliWrite® Technology
IntelliWrite automatically prevents the operating system from breaking files into pieces and writing those pieces in a performance penalized manner. This proactive approach improves performance up to 50% or more while preventing any negative impact to snapshots replication, data deduplication or thin provisioning growth. As this proactive approach happens at the server level, the network and shared storage simply has less I/O operations to transfer and process.

New! Performance Benefit Analyzer
The Performance Benefits Analyzer helps document the performance benefits of V-locity. The benefit analyzer looks at your current system performance, then compares these results to those after using V-locity to provide a detailed report showing specific improvements and benefits to your system.

V-Aware® Technology
V-Aware detects external resource usage from other virtual machines on the virtual platform and eliminates resource contention that might slow performance.

CogniSAN® Technology
CogniSAN detects external resource usage within a shared storage system, such as a SAN, and allows for transparent optimization by not competing for resources utilized by other VMs over the same storage infrastructure. And it does this without intruding in any way into SAN-layer operations.

InvisiTasking® Technology
InvisiTaksing allows all the V-locity 4 "background" operations within the VM to run with zero resource impact on current production.

Set It and Forget It®
Automatic and real-time operation.

For more details and a FREE trial, visit www.condusiv.com/products/v-locity or call a sales representative at 1-800-829-6468.

IntelliWrite and SQL DBCC false positives - Technical Bulletin

by Michael 10. December 2009 07:34

For SQL DBA's (only):

Diskeeper 2010 with IntelliWrite currently has an issue where Database Consistency Check (DBCC) commands report problems with the database (though no actual problems exist). I guess it could be described as a "false positive" or "false alarm".

The issue is specifically that IntelliWrite's timing in expanding a file changed what the consistency check was expecting. Thereby DBCC incorrectly reports consistency errors. Turning off IntelliWrite makes the alerts go away. Then running DBCC confirms that no errors actually occurred.

So while the issue is very minor (no actual problem) major "problem indicators" do get set off, making for a potentially very unpleasant experience for a DBA. Something we apologize for. 

On a positive note, we've repro'ed the issue and already have a fix. We're starting a field test tomorrow (on Friday, Dec. 10th). The fix should be broadly available later next week or early the following week (depending on how quickly the field test completes). If anyone is interested in testing this patch, you can contact Diskeeper at fieldtest@diskeeper.com.

Until the fix is available, disabling IntelliWrite on a SQL database volume corrects the false alarms.

Lastly, I do want to add that this is the only common reported issue we have seen with IntelliWrite - it is an extremely stable and reliable technology. The software update that will come only needs to fix the issue discussed in this post.

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