ClusPerf.cmd

    @if not defined debugbat echo off     : Turn on “delayed expansion” so we can manipulate variables properly in for loops.    setlocal ENABLEDELAYEDEXPANSION     : Defaults    set create=0    set start=0    set stop=0    set delete=0    set show=0    set name=”WSFCCluster”    set out=”c:WSFCCluster”    set filter=”Cluster”     set hosts=     if “%1%” == “” goto Usage :argloop    … Read more

PowerShell for NLB: Part 1: Getting Started

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 Windows Server 2008 R2, the NLB team… Read more

Failover Clustering Performance Counters – Part 3 – Examples

Hi cluster fans, This third post in our series about Failover Clustering Performance Counters will give some practical examples of how to use this new Windows Server 2008 R2 feature to help troubleshoot your cluster. In Part 1 of this blog series we discussed Performance Counters and their interaction with the Network, Multicast Request Reply,… Read more

Network Load Balancing in R2: Extended Affinity

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… Read more

PowerShell for Failover Clustering: Finding the Drive Letter

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 = gwmi MSCluster_Resource -Namespace root/mscluster | ?{ $_.Name… Read more

Clustered Hyper-V Upgrades from Server 2008 to Server 2008 R2

Hi Cluster Fans,   We’ve just published documentation describing the upgrade path for clustered VMs on 2008 Failover Clusters to 2008 R2 Failover Clusters.  Hyper-V Upgrades: http://support.microsoft.com/kb/957256   [Update: 11/12/09] A new cluster migration guide has been published which describes additional considerations needed for DFS-Replication, DHCP, (MS)DTC, Exchange, File Server, MSMQ, Print, SQL, VMs and… Read more

Failover Clustering Performance Counters – Part 2

Hi Cluster Fans, In Part 1 of this blog series we discussed Performance Counters and their interaction with the Network, Multicast Request Reply, Global Update Manager and Database clustering components.  This post will look at monitoring some additional cluster components:  the Checkpoint Manager, Resource Control Manager, Resource Types, APIs and Cluster Shared Volumes. Checkpoint Manager… Read more