The Real (and Virtual) Adventures of Nathan the IT Guy

June 14, 2011  3:01 PM

How to clear DCDIAG Errors

Nathan Simon Nathan Simon Profile: Nathan Simon

What is DCDIAG you ask?

This command-line tool analyzes the state of one or all domain controllers in a forest and reports any problems to assist in troubleshooting. DCDiag.exe consists of a variety of tests that can be run individually or as part of a suite to verify domain controller health.

Let’s get back to clearing the errors, one might say that this is a difficult task. Not so much.

Just open up Eventvwr and clear the logs, re-run dcdiag and the errors should go away.

You could also try running dcdiag /fix to let it apply safe fixes.

For a full list of dcdiag commands, go here.


June 10, 2011  3:00 PM

HP MSA 2012i “Error sending e-mail”

Nathan Simon Nathan Simon Profile: Nathan Simon

If you are trying to setup the e-mail notification and are receiving “Error sending e-mail” every time you click on “Test Send e-mail” I may have a solution. Follow the below instructions.

Manage -> Event Notification -> email configuration

Email Address –
Email Comment – VMware Storage MSA 2012i
Mail Server –
Domain Name –
Sender Name – Alerts
Email Notification Enable – Enabled

You may have to allow anonymous relay from the IP Address of the MSA as well.

Good Luck!


June 10, 2011  2:36 PM

Jerky mouse performance on Windows 2008 R2 virtual machine

Nathan Simon Nathan Simon Profile: Nathan Simon

If you are having issues where the mouse is jerky on a Server 2008 VM, while viewing it from vSphere client “Open Console”, check to make sure you have a VMware driver for the video card.

You can check by going to the Control Panel > Display > Screen Resolution > Advanced Settings > Adapter Type. If it just says SVGA,  VMware SVGA or something to that affect  you need to update the drivers. You can manually install the video driver to correct this, the drivers are located here – C:\Program Files\Common Files\VMware\Drivers\wddm_video. When you update the drivers, just search for them in “C:\Program Files\Common Files\VMware\” and include subfolders, Windows will pickup the correct driver. Once the drivers are up to date you will notice that, after the reboot, your mouse is nice and smooth like it should be. The display Adapter Properties should now read, “VMware SVGA 3D (Microsoft Corporation – WDDM)”

This fix should be relevant to all Windows Server 2008 VMs. Any questions, let me know!


June 9, 2011  1:35 AM

New! QNAP TS-459/559/659 Pro II

Nathan Simon Nathan Simon Profile: Nathan Simon

Awesome news, the new QNAP’s have arrived!

The new models ship with new V3.4 of QNAP’s renowned NAS management software, supporting all-in-one server applications such as file sharing, FTP server, printer sharing (LAN and Internet), web server, and even video surveillance. Other advanced features include backup to cloud storage including real-time synchronization of any changed files stored on the NAS to the cloud with versioning control, Real-time Remote Replication (RTRR) for disaster recovery and ease of content delivery among HQ and branches, advanced access right control for ease of management, and so on. All of these powerful features are conveniently compacted into a small machine, which can be easily deployed and quietly operate in a typical office environment, even without a server room. These brand new business series NAS models are an ideal solution for high performance, cross-platform file sharing, and the most comprehensive iSCSI/IP-SAN storage solution available for virtualization environment.

The new revision of QNAP NAS devices will support RAID 0, 1, 10, 5, 6, 5+ hot spare, 6+ hot spare, 10+ hostpare, depending on the size of QNAP device. The TS-x59 Pro II models are also ideal for virtualized environments, being fully VMware-ready, Citrix-ready, and Microsoft Windows Server 2008 Hyper-V clusters compliant with the most comprehensive iSCSI support, including thin provisioning, MC/S, and MPIO capabilities.


June 9, 2011  1:26 AM

Windows 8 Preview

Nathan Simon Nathan Simon Profile: Nathan Simon

Windows 8 Preview is here!

[kml_flashembed movie="" width="425" height="350" wmode="transparent" /]

So what do you think? I think for showing people pics and vids it will be nice, but i definitely will be in standard mode more often, ie start bar etc.

May 27, 2011  1:35 PM

Exchange Mailbox Server Role Requirements Calculator

Nathan Simon Nathan Simon Profile: Nathan Simon

I was perusing “The Exchange Team Blog” and I came across v16.5 of the Exchange 2010 Mailbox Server Role Requirements Calculator

After you have determined the design you would like to implement, you can follow the steps in the Exchange 2010 Mailbox Server Role Design Example article within the Exchange 2010 Online Help to calculate your solution’s CPU, memory, and storage requirements, or you can leverage the Exchange 2010 Mailbox Server Role Requirements Calculator.

There is a giant article that explains the whole thing, check it out here. You can go straight to the downloads section as well, the calculator will be the first in the list.

May 27, 2011  1:25 PM

Exchange Server 2010 Service Pack 2

Nathan Simon Nathan Simon Profile: Nathan Simon

Last week Exchange 2010 service pack 2 was announced, below are some of the new features.

Outlook Web App (OWA) Mini: A browse-only version of OWA designed for low bandwidth and resolution devices. Based on the existing Exchange 2010 SP1 OWA infrastructure, this feature provides a simple text based interface to navigate the user’s mailbox and access to the global address list from a plurality of mobile devices.

Cross-Site Silent Redirection for Outlook Web App: With Service Pack 2, you will have the ability to enable silent redirection when CAS must redirect an OWA request to CAS infrastructure located in another Active Directory site.  Silent redirection can also provide a single sign-on experience when Forms-Based Authentication is used.

Hybrid Configuration Wizard: Organizations can choose to deploy a hybrid scenario where some mailboxes are on-premises and some are in Exchange Online with Microsoft Office 365. Hybrid deployments may be needed for migrations taking place over weeks, months or indefinite timeframes. This wizard helps simplify the configuration of Exchange sharing features, like: calendar and free/busy sharing, secure mailflow, mailbox moves, as well as online archive.

Address Book Policies: Allows organizations to segment their address books into smaller scoped subsets of users providing a more refined user experience than the previous manual configuration approach. We also blogged about this new feature recently in GAL Segmentation, Exchange Server 2010 and Address Book Policies.
Customer Requested Fixes: All fixes contained within update rollups released prior to Service Pack 2 will also be contained within SP2. Details of our regular Exchange 2010 release rhythm can be found in Exchange 2010 Servicing.

Sadly enough, I have some clients who do not even have Exchange Server 2010 SP1 installed, why? because Microsoft decided to make it one of the most uncooperative upgrades in existence. Prerequisites at every turn, its quite ridiculous… does anyone out there know if you can go straight to SP2? I guess I will test an upgrade in my VMware sandbox and let you all know.

May 23, 2011  8:33 PM

GoFlex Satellite (500GB/WiFi/USB 3.0)

Nathan Simon Nathan Simon Profile: Nathan Simon

Now here is something interesting… a HDD that is WiFi connected, any web capable device can use it, if the media is native to the device, or you can use apps to convert media.

“This shiny, streamlined black box is about the size of a couple of decks of cards. Plug it into a Mac or PC via USB 3.0 (or 2.0), fill it up with music, movies and photos, and then enjoy them on any Wi-Fi device — if the files are compatible. Inside this attractive package is a rechargeable battery that powers the drive for five hours, a Wi-Fi access point and 500GB of hard drive storage space.”

via Mashable Article

Personally I wouldn’t go near that device, not because it probably the neatest thing created in a while, but because it just wouldn’t be worth 200$ to me, 500gb is a little on the small side, once they start releasing larger capacities with the same if not better functionality then I might bite, until then, those who do purchase the device, enjoy!


May 23, 2011  8:20 PM

Free VMware Training!

Nathan Simon Nathan Simon Profile: Nathan Simon

If you purchase VMware vSphere Essentials or Essentials Plus during the promotional period (March 8th – Sept 15th 2011) you will receive tokens to take free online courses.

For a limited time, buy VMware vSphere Essentials or Essentials Plus and get vSphere Fundamentals for SMBs online training free! If you’re new to virtualization, vSphere Fundamentals is designed to help you learn the vSphere Architecture, guide you through the installation, and understand best practices.

You will have till November 15th to redeems the tokens. I believe its only valid for US customers, which sucks for us up here in Canada. Never the less, its interesting enough for me to blog about.

Full Promo details here.


May 23, 2011  5:21 PM

Laser puts 26Tb/sec through fibre

Nathan Simon Nathan Simon Profile: Nathan Simon

So cool! Fibre optics might just receive an upgrade in the not so far future!

Researchers have set a new record for the rate of data transfer using a single laser: 26 terabits per second.

That’s crazy, to think that someday data transfer rates will be instataneous from point A to point B.

While the total data rate possible using such schemes is limited only by the number of lasers available, there are costs, says Wolfgang Freude, a co-author of the current paper from the Karlsruhe Institute of Technology in Germany.

“Already a 100 terabits per second experiment has been demonstrated,” he told BBC News.

“The problem was they didn’t have just one laser, they had something like 370 lasers, which is an incredibly expensive thing. If you can imagine 370 lasers, they fill racks and consume several kilowatts of power.”

Professor Freude and his colleagues have instead worked out how to create comparable data rates using just one laser with exceedingly short pulses.

Within these pulses are a number of discrete colours of light in what is known as a “frequency comb”.

When these pulses are sent into an optical fibre, the different colours can add or subtract, mixing together and creating about 325 different colours in total, each of which can be encoded with its own data stream.

You have to read the full story here though, its quite an interesting read. Last year they attained 10Tb/s, so in one year they more than doubled sustained transfer rates. Amazing stuff.

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