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.

Webinar: Physical vs. Virtual Bottlenecks: What You Really Need To Know

by Damian 20. February 2012 07:05

Diskeeper Corporation recently delivered a live webinar hosted by Ziff Davis Enterprise. The principle topics covered were:

  • Measuring performance loss in Windows over SAN
  • Identifying client-side performance bottlenecks in private clouds
  • Expanding performance awareness to the client level
  • The greatest and often-overlooked performance issue in a virtual ecosystem

The webinar was co-hosted by:

  • Stephen Deming, Microsoft Partner Solution Advisor
  • Damian Giannunzio, Diskeeper Corporation Field Sales & Application Engineer

Don't miss out on this critical data! If you missed the webinar, you can view the recorded version online here.

Here are some additional, relevant resources:

White Paper: Diskeeper 2011: Improving the Performance of SAN Storage

White Paper: Increasing Efficiency in the IT Environment

White Paper: Inside Diskeeper 2011 with IntelliWrite

White Paper: Running Diskeeper and V-locity on SAN Devices 

Space Reclamation, Above and Below

by Damian 7. November 2011 09:29

Thin provisioning is a fairly hot topic in the storage arena, and with good reason. Many zones within the business and enterprise see massive benefit from the scalability of thin provisioning, and it can be a cost saver besides. However, the principle of thin provisioning suffers some unique maladies at both client and storage levels.

Some storage arrays include a feature permitting thin provisioning for their LUNs. This storage layer thin provisioning occurs below the virtual platform storage stack, and essentially means scalable datastores. Horizontal scaling of data stores adds a new tier of agility to the storage ecosystem that some businesses absolutely require.

LUN thin provisioning shouldn’t be confused with Virtual Disk TP, which works at a file level (not array). Thin provisioned VMs can expand based on pre-determined use cases, adding an extra degree of flexibility to storage density. Intelligently combining TP at multiple tiers yields some pretty neat capacity results.

Datastore thin provisioning has been the source of some concern for storage administrators with regards to recovery from over-provisioning. When virtual disks are deleted or copied away from a datastore, the array itself is not led to understand that those storage blocks are now free. You can see how this can lead to needless storage consumption.

vSphere 5 from VMware introduced a solution for this issue. The new vSphere Storage APIs for Array Integration (VAAI) for TP uses the SCSI UNMAP command to tell the storage array that space previously occupied by a VM can be reclaimed. This addresses one aspect of the issue with thin VM growth.

Files are not simply being written to a virtual disk, they’re also deleted with regularity. Unfortunately, there is no associated feature within virtual platforms or Windows to inform the storage array that blocks can be recovered from a thin disk which should have contracted after deletions. Similar to the issue above, this leads to unnecessary storage waste.

With the release of V-locity 3 in 2011, we introduced a new Automatic Space Reclamation engine. This engine automatically zeroes out “dead” free space within thin virtual disks, without requiring that they be taken offline and with no impact on resource usage. So what does this mean? Thin VMs can be compacted, actually reclaiming the deleted space to the storage array for dynamic use elsewhere. The thin virtual disks themselves are kept slimmed down within datastores, giving more control back to the storage admins governing provisioning.

Space Reclamation with V-locity

You can read more about VAAI for TP in vSphere 5 on the VMware blog here.

Tags: , , ,

virtualization | VMware | Windows 7

Diskeeper Corporation at Interop New York 2011

by Damian 10. October 2011 02:59

We’ve just returned from the Interop Expo in New York, and what a show! The recent release of V-locity® 3 was extremely well received and interest in its innovations was very high. The Diskeeper Corporation booth was constantly attended by groups of CIOs and storage administrators eager to hear about the benefits of the new virtual platform optimizer.

The lion’s share of energy and buzz at the show surrounded virtualization and cloud computing. Leading vendors across these markets as well as storage, networking, and information security exhibited for large groups of virtual admins and IT executives. Shows like Interop are critical for decision makers to stay apprised of the ever-evolving IT infrastructure landscape, and excellent opportunities to get educated about what is truly needed to grow and maintain a virtual environment that runs on all engines for them.

In addition to being asked by numerous IT analysts about the innovations underlying the incredible advantages of V-locity 3, I was interviewed by TMC (Technology Marketing Corporation) about it.

The need to meet higher Service Level Agreements and reduce Total Cost of Ownership for shared storage have reached a new plateau in virtualized networks and private clouds—what V-locity 3 does best.

If you’re reading this and you were at the event, we’d love to hear about your experiences at Interop this year.

Diskeeper Corporation will be exhibiting at the Gartner Symposium in Orlando, FL next week. If you’re planning on attending this IT Expo, stop by the booth to hear firsthand about how V-locity 3 is improving virtual systems in a whole new way.

Tags: , , ,

Events | virtualization | V-Locity

New V-locity 3 Virtual Platform Disk Optimizer Released at VMworld

by Colleen Toumayan 31. August 2011 02:20

Cures Pains from I/O Bottlenecks, Slow VMs, Slow Migration, Resource Conflicts, 

Wasted Storage Space and Slow Backup Speeds

Diskeeper Corporation announced at VMworld the release of new V-locity® 3 virtual platform disk optimizer for VMware®

V-locity 3 delivers invisible background optimization to give maximum I/O performance on virtual servers. 

V-locity 3 now has full integration with VMware ESXi as well as existing support for other platforms such as ESX, and Microsoft Hyper-V™. Other developments include V-Aware™ technology which detects external resource usage from other virtual machines on the virtual platform and eliminates resource contention that would otherwise exist on the same Host Server. New CogniSAN™ technology detects external resource usage within a shared storage system, such as a SAN, and allows for transparent optimization by never competing for resources utilized by other VMs over the same storage infrastructure. CogniSAN does this without intruding in any way into SAN-layer operations. Lastly is the new automatic zeroing of free space which is a powerful engine that zeros out unused data blocks on virtual disks and makes virtual disk compaction easy.

http://www.diskeeper.com/press/releases/releases.aspx?F=2011083001.htm

Tags:

virtualization | virtualization | V-Locity | V-Locity

The Summer Blockbuster Sequel: V-locity 3.0

by Michael 24. June 2011 07:00

Coming Soon: V-locity 3.0 (virtual platform optimizer)  has some fantastic new features in it we're sure you’ll like, including:

+Full Support for ESXi Server (in addition to existing support for ESX and Hyper-V)

+Reduced installation effort for ESX Servers (no installation on Host)

+New CogniSAN technology (for storage area networks)

+New V-Aware technology (for any virtualization platform)

+Automatic zeroing of free space (for thin/dynamic virtual disks)

+Added support for virtualization platforms such as XenServer, RHEV, Oracle VM and more

We are just a few short weeks from releasing it, and could use your help. If your interested in catching a “sneak peak” (our final release candidate build), and are interested and able to install, evaluate and then comment (fill out a 10 minute online survey) on this software, simply fill-out a Non-Disclosure Agreement (NDA) located here.

Fax the signed NDA to:
Fax: 818-252-5514

Please add the following to the Fax cover page:
Attn: Field Test Administrator/V-locity Field Test

Alternatively you can email the signed NDA (scan in the pages with your signature) to our Field Test administrator. Please add "V-locity Field Test" in the subject line.

UPDATE July 28, 2011:

Congrats to Benjie Henderson, Virtualization Architect at SS&C, winner of the iPad2 raffle held for release candidate testers! 

Tags: , , , , ,

Hyper-V | SAN | virtualization | V-Locity | VMware

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