Hi Cluster Fans, This blog post will show the configuration of IP Addresses on multi-subnet clusters for the cluster’s network name, or “Client Access Point” (CAP). This is different from the IP Addresses configuration for other clustered workloads as there is no way to add resource...

Hi Cluster Fans, We wanted to let you know about some great cluster-related blog posts that Jose Barreto, a Program Manager on the File & Storage team, has recently published. Mapping Cluster.exe Commands to Windows PowerShell Cmdlets for Failover Clusters - Extended Edition Link:...

In Windows Server 2008 R2 several improvements have been made to the Network Load Balancing (NLB) technology. Extended Affinity In the past, affinity was only honored for open connections when a failover occurs. In 2008 R2 we added what is known as “Extended Client Affinity”. When...

Hi Cluster Fans, Using PowerShell in Windows Server 2008 R2 Failover Clustering we have made it very easy to find all the clusters within a domain. You may already know that you can use the Get-Cluster CMDlet to get information about the current cluster you are working on. Beyond this, Get...

Hi Cluster Fans, We have recieved many questions around the difference in behavior between Windows Server 2003 MSCS and Windows Server 2008 (and R2) Failover Clustering as it relates to the file shares and the new scoping behavior. Chuck Timon’s article will help you understand the differences...

Hi Cluster Fans, Thanks for those of you who attended my webcast on PowerShell a few weeks ago. If you didn’t have a chance to attend, here is the link to the event: https://msevents.microsoft.com/CUI/WebCastEventDetails.aspx?culture=en-US&EventID=1032448852&CountryCode=US One...

Hi Cluster PowerShell script writers, We regularly get asked about how to find the free disk space on Cluster Shared Volumes (CSV). In this blog, I will show you how to do this with PowerShell. Here are the CSV volumes in my cluster. Note that Cluster Disk 10 has two partitions. ...

Hi, This blog is about how to handle error codes returned by PowerShell Failover Clustering CMDlets. For an introduction to this topic you can take a look at http://blogs.msdn.com/clustering/archive/2009/05/23/9636665.aspx . Cluster CMDlets can fail for various different reasons, such as passing...

Hi Cluster Fans, Over the next few weeks the cluster team is offering a series of public TechNet webcasts focusing on Failover Clustering in Windows Server 2008 R2. High Availability Server Apps with Windows Server 2008 R2 Failover Clusters Link: https://msevents.microsoft.com/CUI/WebCastEventDetails...

Hi Clustering PowerShell Scripters, One of the things we’ve provided in Failover Clustering PowerShell is a set of CMDlets to easily create highly available workloads in a cluster. PS C:\Windows\system32> Get-Command -Module FailoverClusters | ?{ $_.Name -like "Add-Cluster*Role" } CommandType...

Hi, This post will describe several ways to install Network Load Balancing (NLB) using the command line interface. In Windows Server 2008 R2 installing Windows Features using scripts at the command line has changed a little since Windows Server 2008. There are four ways to install the feature:...

Hi, This is the second blog is our series of posts on PowerShell for Network Load Balancing (NLB). The first post introduces you to the CMDlets: http://blogs.msdn.com/clustering/archive/2009/10/28/9913877.aspx Most of NLB CMDlets have the following common parameters. -InterfaceName...

Hi Cluster Fans, We have added Windows Server 2008 R2 PowerShell help on TechNet and have updated our Management Packs to support 2008 R2 for System Center Operation Manager (SCOM), for both Failover Clustering and Network Load Balancing. PowerShell Help Online With PowerShell help online...

Hi NLB Fans, NLB provides users with various methods to manage clusters. In Windows Server 2008, there are 3 ways to manage an NLB cluster: 1. Network Load balancing Manager GUI (nlbmgr.exe) 2. NLB command line tool (Nlb.exe) 3. NLB WMI Provider (root\MicrosoftNLB namespace) In...

Hello! I am Rohan Mutagi. My job at Microsoft is to do something that everyone likes: criticize others J , specifically, other people’s code. Yes, I am a tester and it’s my role to find bugs in Network Load Balancing (NLB). Over the next few months I will be blogging more about changes that NLB...

Hi cluster scripting fans, I often find myself looking for the drive letter(s) for a physical disk resource in a PowerShell console/script. After a bit of investigation, here is a way to do that using Cluster WMI through PowerShell: $DiskResourceName = "Cluster Disk 2" $DiskResource =...

Hi Cluster fans, In this blog post, I’ll walk you through how to rename a couple of objects in your failover clusters using the new PowerShell CMDlets we’ve introduced in Windows Server 2008 R2. Trying to rename a cluster group in the GUI is easy, just right-click on the group, rename, enter the...

Hi, This post will discuss changing values of cluster objects using PowerShell in Windows Server 2008 R2. For resources and other components in a cluster, every cluster object has properties (common property). Parameters (private properties) are optional and a cluster object may or may not have...

Hi cluster fans, Amongst the list of new features we introduced in Windows Server 2008 R2 Failover Clustering is “read-only cluster access”. Before Windows Server 2008 R2, you were either given full control on the cluster or no control at all. If you wanted to give anyone access to your cluster...

Hi Clustering and Scripting fans, If you’ve done any work with PowerShell v1.0 or v2.0, you have probably realized by now how rich the library of cmdlets is. There are a ton of cmdlets that allow you to automate almost any and everything across the system to use PowerShell. Here is one more thing...

The “Double-Hop” Problem Most of the newly added PowerShell cmdlets (“command-lets”) in Windows Server 2008 R2 allow easy remote execution by including the -Cluster parameter to indicate the target cluster. However there are occasions when this capability cannot be used for different reasons, such...

Hi, Today I’m going to talk a little more about PowerShell by answering some of the frequently asked questions I hear. 1) Why is PowerShell better? 2) How do I get started using PowerShell? 3) Where are the properties? 4) Where are the private properties? 5) How do I enable CSV?...

Hi Cluster Fans, Amongst the long list of features that is being added in Windows Server R2, Clustering team is also providing a set of PowerShell cmdlets (“command-lets”) to manage your Failover Cluster. Hopefully this is not news for most cluster administrators as we have publishing information...

Hi Cluster Fans, The Clustering & High-Availability team will be coming to TechEd, Los Angeles in May ( website ). We hope some of you can see our sessions and demo Failover Clustering in Windows Server 2008 R2 as a Hands-on-Lab. The cluster team will include Steven Ekren (Senior Program Manager...

Hi Cluster Fans, In Windows Server 2008 R2 (“R2”) we are introducing PowerShell as the new scripting language for clustering technologies. PowerShell with Network Load Balancing (NLB) will replace NLB.exe and WLBS.exe. The Windows Server 2008 R2 release is the last release for NLB.exe and WLBS.exe...