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Something changed the CNO’s password without the CNO knowing. One of the responsibilities of Network Name resources is to rotate the passwords of the machine accounts. While it is online, each network name changes its password according to domain and local machine policy. Because the CNO has full...

Next week the Clustering and High Availability team will be traveling to Barcelona, Spain for one of Europe’s largest IT conferences, TechEd EMEA ITPro, from November 3-7. Throughout this week we will be giving presentations, demos, chalk-talks, and instructor led labs, in addition to being available...

A recent email conversation I had prompted me to write this entry about Preferred Owners. The Preferred Owners setting for a resource group is one of those things which has an inherent counter-intuitiveness to it. The feature is described very well in KB 299631 ( http://support.microsoft.com/kb/299631...

Windows Server Failover Clustering logs information about cluster activities including normal operations like updates between nodes as well as errors and warnings related to problems that occurred on the cluster in a text file called cluster.log . The information in the cluster.log is very valuable when...

You may have noticed that in Windows Server 2008 that the "Share Subdirectories" option for file shares on a Failover Cluster has been removed...why would we do that? First off, let's take a stroll down memory lane and talk about the history of this feature and how it came to be... Let's timewarp...

Hi Cluster Fans, Failover Clustering in Windows Server 2008 no longer supports the traditional “rolling upgrade” which you may be familiar with from Windows Server 2003. This has given the impression that you will not be able to reuse your hardware. That is not true – with clustering’s built-in...

Don't let it happen! This goes beyond clusters. If an identity is deleted, nothing using that identity will be able to log on or authenticate against it. The service or application that you went through all the pains to make highly available on your cluster will no longer be available to clients....

Before Windows Server 2008, the cluster required the use of a Cluster Service Account (CSA). This was a domain user under whose credentials the cluster service, as well as cluster resources, ran. The CSA presented some problems, the most obvious of which was requiring administrators to rotate this password...

Hi Cluster Fans, We’ve been seeing an increasing number of questions about a specific error in Windows Server 2008 Failover Clustering using the ‘Validate a Configuration’ Wizard (‘Validate’). This error is fairly common and very easy to fix and I’m going to show you how. But first, a little background...

Hi cluster fans, A new whitepaper was release this week describing how to set up, configure and troubleshoot Active Directory Certificate Services (AD CS) with Windows Server 2008 Failover Clustering. With Windows Server 2003 and earlier versions, organizations had to deploy multiple certification...

NLB users, In a previous post ( http://blogs.msdn.com/clustering/archive/2008/02/15/7718003.aspx ), I requested your input on how you use NLB in your environments. Many of you responded with great information. Thank you! Thank you! Taking this a step further, the Clustering and High Availability...

Now that Failover Clustering deployments on Windows Server 2008 are growing, and our customers are spreading the word about how easy it is, we’re getting an increasing number of questions about “what’s new in 2008?” The short answer is – pretty much everything! We’ve enhanced virtually every component...

http://www.microsoft.com/windowsserver2008/en/us/clustering-home.aspx Hi Cluster Fans, For a long time we’ve been asked for a centralize location to find all of your clustering information – and it is here! This easy-to-use website offers information about our products, programs and resources...

Hi cluster fans, From June 9 th – 13 th the cluster team will be at IP Pro TechEd in Orlando, Florida. Windows Server 2008 has been our biggest release to date and a quorum of our program managers, marketing team, and cluster MVPs will be there to educate and answer all your questions. We will...

Hi clustering fans, The Windows Server Failover Clustering Product Group is proud to announce the release of the first ever Windows Server 2008 Microsoft Official Curriculum course: Course 6423A: Implementing and Managing Windows Server 2008 Clustering The course will be available in the...

Hi Cluster Fans, We’ve had a lot of requests for a centralized website to find clustering and high-availability information and…it’s coming soon. But in the meantime I’ll post some great resources from Microsoft’s Clustering and High-Availability team. I’ll try to update this list when we...

When you purchase something online, don’t you expect web sites to always be up and running? High availability is no longer just for banks, all successful companies must be up and ready for business 24x7. Does meeting that need with Windows technologies excite you? Are you passionate about driving one...

The MVP Summit is help in Redmond and Seattle, WA on April 14th - 17th ( https://www.mvpsummit2008.com/Default.aspx ). The clustering team is planning several events and presentations over this week which are open to MVPs who have listed clustering as an interest in their MVP Summit profiles. Please...

Windows Cluster 2008 provides multiple ways of adding a disk to an existing cluster. This article will walk you through all the available choices. Some Fundamentals: Windows Server 2008 Failover Clustering (WSFC) supports both GPT and MBR disks. There now exists a core resource group called “Available...

Windows Server 2008 is launching on February 27th. This is an extremely exciting date for all of us here in Windows Server, especially in the High Availability team. Of course, for you, this means learning about all the cool new features in this release and planning your deployment; something you might...

Check out this new blog by MVP Edwin van Mierlo. He plans to focus on logging, supportability, and troubleshooting. Edwin's blog: http://msmvps.com/blogs/edwinvanmierlo/default.aspx

http://msevents.microsoft.com/CUI/WebCastEventDetails.aspx?EventID=1032365516&EventCategory=4&culture=en-US&CountryCode=US IT M anager Webcast: Delivering High Availability to Your Infrastructure (Level 100) Event ID: 1032365516 Register Online Language: English Product: Windows Server...

Cluster resource dependencies used to be a fairly limited relationship. A resource could depend on one or more resources (we call them “provider” resources in the context of the dependency relationship). This dependency relationship was an “and” relationship, in that the dependent resource R depends...

The clustering team is looking for two new Program Managers. Interested? Visit: www.microsoft.com/careers and search for job codes: 220546 and 220547. When you purchase something online, don’t you expect web sites to always be up and running? High availability is no longer just for banks, all successful...

For my first post here, I thought I’d talk about backing up and recovering the Failover Cluster configuration database. For Windows Server 2008, Failover Clustering’s backup and restore code was revamped to fit into the Volume Shadow Copy Service (VSS) framework. Now Failover Clusters can be backed up...