Understanding the Repair Active Directory Object Recovery Action

One of the responsibilities of cluster Network Name resource is to rotate the password of the computer object in Active Directory associated with it.  When the Network Name resource is online, it will rotate the password according to domain and local machine policy (which is 30 days by default).  If the password is different from what is stored in… Read more

Understanding the state of your Cluster Shared Volumes in Windows Server 2012 R2

Cluster Shared Volumes (CSV) is the clustered file system for the Microsoft Private cloud, first introduced in Windows Server 2008 R2. In Windows Server 2012, we radically improved the CSV architecture. We presented a deep dive of these architecture improvements at TechEd 2012. Building on this new and improved architecture, in Windows Server 2012 R2,… Read more

Cluster Shared Volume (CSV) Inside Out

In this blog we will take a look under the hood of the cluster file system in Windows Server 2012 R2 called Cluster Shared Volumes (CSV). This blog post is targeted at developers and ISV’s who are looking to integrate their storage solutions with CSV. Note: Throughout this blog, I will refer to C:\ClusterStorage assuming that… Read more

Decoding Bugcheck 0x0000009E

In the System event log you may find an event similar to the following: Event ID 1001 Source:  Microsoft-Windows-WER-SystemErrorReporting                Description:  The computer has rebooted from a bugcheck.  The bugcheck was: 0x0000009e (0x0000000000000000, 0x0000000000000000, 0x0000000000000000, 0x0000000000000000). A dump was saved in: C:\Windows\MEMORY.DMP. Let’s start out discussing what a STOP 0x9e is…  Failover Clustering actively conducts health monitoring of… Read more

Server Virtualization w/ Windows Server Hyper-V & System Center Jump Start

Add Hyper-V to your server virtualization skillset and improve your career options: Register for this free course, led by Microsoft experts Symon Perriman and Corey Hynes: Server Virtualization w/ Windows Server Hyper-V & System Center Jump Start.  Windows Server 2012 R2 Failover Clustering will be covered in depth, including cluster validation, configuration, management, and best practices… Read more

Windows Server 2012 R2 Virtual Machine Recovery from Network Disconnects

Overview Windows Server Failover Clustering has always monitored the running state of virtual machines and the health state of clustered network and clustered storage.  We are furthering the failure detection to include monitoring of the virtual machine network and virtual switch connectivity. Windows Server 2012 R2 introduces a new functionality that allows a virtual machine… Read more

How to Properly Shutdown a Failover Cluster or a Node

This blog will discuss the proper process for shutting down an individual node in a Windows Server 2012 R2 Failover Cluster or the entire cluster with all the nodes.  Note:  While the steps outlined will be specific to Windows Server 2012 R2, the process applies to a cluster of any OS version. Shutting Down a… Read more

How to Enable CSV Cache

Overview Cluster Shared Volumes (CSV) Cache is a feature in Windows Server 2012 and beyond which allows you to allocate system memory (RAM) as a write-through cache.  The CSV Cache provides caching of read-only unbuffered I/O.  This can improve performance for applications such as Hyper-V, which conducts unbuffered I/O when accessing a VHD file.  Unbuffered I/O’s are operations which… Read more

Failover Clustering Sessions @ TechEd 2013

If you were not able to make it to TechEd 2013 this year, you can still watch the sessions and learn about the new enhancements coming.  Here’s links to the recorded cluster sessions at TechEd 2013: Continuous Availability: Deploying and Managing Clusters Using Windows Server 2012 R2http://channel9.msdn.com/Events/TechEd/NorthAmerica/2013/MDC-B305#fbid=WOoBzkT2vlt Failover Cluster Networking Essentialshttp://channel9.msdn.com/Events/TechEd/NorthAmerica/2013/MDC-B337#fbid=WOoBzkT2vlt Upgrading Your Private Cloud with… Read more

Validate Storage Spaces Persistent Reservation Test Results with Warning

I have seen questions from customers who get a warning in the results of their failover cluster validation that indicates the storage doesn’t support persistent reservations for Storage Spaces. They want to know why they got the warning, what it means, and what should they do about it. First, here is the text you will… Read more