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  • Blog Post: Announcement: Upcoming Cluster & Hyper-V Training for User Groups

    Hi Cluster Fans, On Thursday, July 14 th we will be giving online training to user groups about Failover Clustering & Hyper-V: Planning your Highly-Available Virtualization Environment . This event is run in collaboration with Microsoft’s User Group Support Services (UGSS) and will be presented...
  • Blog Post: Clustered File Servers and the Remote Volume Management Firewall Setting

    Hi Cluster Fans, A common mistake when creating clustered file is not opening the appropriate firewall setting, Remote Volume Management . This can cause the file server to give errors for various operations. Remote Volume Management provides remote software and hardware disk volume management...
  • Blog Post: Changing Clustered IP Addresses & Configuring a DHCP or WINS Cluster

    Hi Cluster Fans, In Windows Server 2008 and Windows Server 2008 R2 we have simplified how easy it is to create and use a Failover Cluster. For example, if we detect you are using DHCP in your datacenter, we will automatically assign the cluster as well as clustered applications and services...
  • Blog Post: Trouble Connecting to Cluster Nodes? Check WMI!

    A frequent cluster network connection issue we see happens when the cluster cannot use WMI. WMI is Windows Management Instrumentation, which is an interface through which Windows components can provide information and notifications to each other, often between remote computers ( more info about WMI ...
  • Blog Post: Creating a Cluster Resource DLL (Part 5): Logs

    Hi, In this series of blog posts we will help you to design, develop and debug the Resource DLL you are developing to give your application high-availability with Windows Server 2008 & 2008 R2 Failover Clustering. We recommend you start with the other blog post in the series: ·...
  • Blog Post: Guest Failover Clustering with VMware

    This blog discusses running a Windows Server Failover Cluster (WSFC) in a virtual machine (VM) on top of a VMware host. Running a cluster in a virtualized environment is commonly referred to as "Guest Clustering". Guest Clustering provides two key values: 1. Application Health Monitoring – Enables...
  • Blog Post: Working with Private Properties using Cluster WMI

    Hi Cluster Fans, In the forums we have noticed several people have question about how to manipulate a Cluster Object’s private properties using WMI. To work with private properties it’s important to understand how private properties work. Private properties of any cluster object are...
  • Blog Post: Introduction to the Cluster Quorum Model

    Failover clusters ensure that workloads such as File Server, Exchange, SQL, and Virtual Machines are highly available. These resources are considered highly available if the nodes that host resources are up, however the cluster generally requires more than half the nodes to be running, which is known...
  • Blog Post: Creating a Cluster Resource DLL (Part 3)

    Hi, In this series of blog posts we will help you to design, develop and debug the Resource DLL you are developing to give your application high-availability with Windows Server 2008 & 2008 R2 Failover Clustering. We recommend you start with the other blog post in the series: · P art...
  • Blog Post: Creating a Cluster Resource DLL (Part 2)

    Hi, In this series of blog posts we will help you to design, develop and debug the Resource DLL you are developing to give your application high-availability with Windows Server 2008 & 2008 R2 Failover Clustering. We recommend you start with the first blog post in the series: · Part 1...
  • Blog Post: Creating a Cluster Resource DLL (Part 1)

    Hi, In this series of blog posts we will review the Resource State Machine from the Resource Host Server (RHS or Resource Monitor) point of view. Hopefully it will help you to design, develop and debug the Resource DLL you are developing to integrate your application with Windows Server 2008 &...
  • Blog Post: Dynamic Disks with Windows Server Failover Clustering

    Since Failover Clustering traditionally requires shared storage (you could also use hardware or software replication between nodes), we get a lot of questions about which shared storage types we support. Windows Server Failover Clustering has a very flexible storage model that allows a wide variety of...
  • Blog Post: Failover Clustering Upgrade Path from WS08 R2 RC to WS08 R2 RTM

    Hi cluster fans, Many of you have been using the Release Candidate (RC) of Windows Server 2008 R2 and want to move to the Release to Manufacturing (RTM) build. This guide will walk you through the upgrade path which uses the “Migrate a Cluster Wizard” tool to move your resources to your RTM cluster...
  • Blog Post: Failover Clusters, Performance Counters, and PowerShell

    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...
  • Blog Post: DNS Registration with the Network Name Resource

    Hi Cluster Fans, In this post we will discuss some of the implementation details around the Network Name (“NetName”) resource and its behavior in Windows Server 2008 R2. Introduction The purpose of Network Name is to allow clients to be able to resolve the DNS name to an IP Address to establish...
  • Blog Post: What is RHS and what does it do?

    In Window Server 2008 Failover Clustering, the team invested significant time into making clustering easier. In the Windows Server 2008 R2 release we have continued down that path, adding several troubleshooting enhancements. One of the important aspects of troubleshooting a service outage is doing...
  • Blog Post: Rolling Upgrade to Windows Server 2008 SP2 Failover Clustering

    Hi Cluster Fans, Windows Server 2008 Service Pack 2 (SP2) is now available for download on the web! This blog post will walk you through performing a “rolling upgrade” from Windows Server 2008 RTM to Windows Server 2008 SP2. A rolling upgrade allows you to progressively upgrade your cluster nodes...
  • Blog Post: Creating and Configuring a Generic Service Resource

    With Windows Server 2008 (and R2) Failover Clustering you can make almost anything highly-available. This does not only include programs and applications, but you can make any service running on the cluster highly available – even if it is custom or from a 3 rd party. These can be created, managed by...
  • Blog Post: High-Availability Education from Hyper-V and Exchange

    Hi cluster fans, Our partners on the Exchange and Hyper-V team have recently published some great resources to improve your high-availability knowledge. Hyper-V: Free Training Microsoft is offering some free training for Hyper-V which includes modules on HA and Failover Clustering. ...
  • Blog Post: Cluster Resources

    Hi Cluster Fans, Resources can be hard to find, so every few months we will be publishing an updated list of useful documents, guides and information to this blog ( http://blogs.msdn.com/clustering/ ). If there is any other useful Microsoft content which you feel is missing, let us know by...
  • Blog Post: Clustering is coming to TechEd L.A.

    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...
  • Blog Post: Creating and Configuring a Generic Application Resource

    Windows Server 2008 (and R2) Failover Clustering supports virtually every workload which comes with Windows Server, however there are many custom and 3 rd party applications which take advantage of our infrastructure to provide high-availability. Additionally there are some applications which were not...
  • Blog Post: Network Load Balancing (NLB) and Virtual Machines

    Hi, A lot of people have asked about setting up NLB clusters on virtual machines. This is possible. But, there a few things to keep in mind. If you’re trying to create NLB clusters using Virtual Server Virtual Machines, before designing your solution familiarize yourself with the supported...
  • Blog Post: What the heck is PlumbAllCrossSubnetRoutes?

    Hi cluster fans, If you ever browsed your cluster properties you may have noticed an entry for “PlumbAllCrossSubnetRoutes” and you’ve probably asked yourself, “what the heck is that?” The only thing on the web will point you to MSDN ( http://msdn.microsoft.com/en-us/library/aa371422(VS.85...
  • Blog Post: Clustering Docs, Blogs & Webcasts

    Hi Cluster Fans, The cluster team has been busy working on some great new features for Failover Clustering in Windows Server 2008 R2. Meanwhile our friends have written some great blog posts which you may find interesting. Thanks, Symon Perriman Program Manager Clustering & High Availability...
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