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“Partitioned” Cluster Networks
With Failover Cluster and the quorum models used, the concept of votes is used to determine which subset of nodes survives should one group of nodes lose connectivity with another group of nodes in the...
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Operating system comes up with Blue Screen Error: Stop c000021a
In this blog we are going to discuss about how we can decode and fix operating system crashes with Stop c000021a. Below is the first screen you will see after POST, followed by the bugcheck...
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Windows 2003 Server Cluster and Access Denied Errors
Hello Cluster fans, I am back for another go at it. This one you will need to hark back to the days of Windows 2003 Server Clusters. Many of you still have this running and may have seen Access...
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How to Failover the ‘Cluster Group’ and ‘Available Storage” Cluster Groups
One question I get asked a lot working with our customers is how to failover the ‘Cluster Group’ and ‘Available Storage’ groups? Under the covers, those two groups are still just groups like any other...
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System Hangs at Splash Screen or Boot freezes on ACPITABL.DAT
Often we have seen operating system hanging at Splash screen as seen in the screenshot below. For Windows Server 2003: For Windows Server 2008 and above: As the first troubleshooting step, you would...
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Replacing a Shared Disk on a 2008 Failover Cluster
Several months ago, I posted a blog on adding a new disk to an existing cluster. Another question we get asked a lot is “How do I replace a disk?” In this blog, I’ll walkthrough the process of...
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Alignment changes in Windows 2008 and 2008 R2
Disk alignment, partition alignment, offset alignment…whatever you like to call it, it was very important back in the Windows 2000/2003 days. Different storage configurations could make use of the...
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Stop 0x50 on Windows 2008 R2 Failover Cluster
Greetings Cluster fans, John Marlin back for another go at it. I wanted to write something about what we have been seeing involving the use of Cluster Shared Volumes (CSV) and File Server resources...
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Error message running WBAdmin to backup system state: “One of the source...
When creating a system state backup with Windows Server 2008 or Windows Server 2008 R2 you may encounter the following error: “One of the source volumes specified has an invalid format and cannot be...
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Troubleshooting Error 800B0100, CBS_E_IDENTITY_MISMATCH, during Service Pack...
Hello, My name is Himanshu and I work with the Windows Core Support Team. Recently, I worked on a patch installation issue known internally at Microsoft as a servicing issue. I thought this would be a...
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One of the source volumes specified has invalid….” Error messaging running...
When creating a system state backup with Windows Server 2008 or Windows Server 2008 R2 you may encounter the following error: “One of the source volumes specified has an invalid format and cannot be...
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Error “Encountered errors while reading in the specified configuration file”...
My name is Himanshu Singh and in this blog I will talk about an issue seen on Windows Server 2003 64-bit servers running File Server Resource Manager (FSRM), where, when you run a dirquota command to...
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Free Microsoft Private Cloud Training
Are you ready for the Microsoft Private Cloud? On February 21 & 22 Microsoft Learning is running a 2-day virtual training event to help the world learn about the upcoming enhancements with the...
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Better alternatives to manually merging snapshots in Windows Server 2008 R2
There might be times on Windows Server 2008 R2 Hyper-V host when the snapshots will not merge, the virtual machine disappears from the Hyper-V management console or the virtual machine goes into a...
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Cluster Shared Volumes (CSV) in redirected access mode after installing...
There is an issue with Cluster Shared Volumes and McAfee VirusScan Enterprise that I wanted to pass along. When installing McAfee VSE 8.7 Patch 5 or 8.8 Patch 1, the CSV drives will go into redirected...
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Measuring Disk Latency with Windows Performance Monitor (Perfmon)
My name is Flavio Muratore and I am a Senior Support Escalation Engineer with the Windows Core Team. One subject we haven’t written much about in the Core team blog is “disk performance”. Today I would...
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Having a problem with nodes being removed from active Failover Cluster...
Welcome to the AskCore blog. Today, we are going to talk about nodes being removed from active Failover Cluster membership randomly. If you are having problems with a node being removed from...
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Windows 8 Consumer Preview now available !!!
Today is a big day here at Microsoft. This morning at the Mobile World Congress in Barcelona, Spain, it was announced that Windows 8 Consumer Preview (beta) is now released. At the conference, several...
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Windows Server 8 beta now available !!!
Thursday morning Bill Laing, Corporate Vice President of Server and Cloud Announced the beta release of Windows Server “8”. I think it is really important for anyone who is interested in hearing more...
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Understanding DiskRunChkdsk in 2008?
My name is Sean Dwyer and I am a Support Escalation Engineer with the Microsoft CORE team. I’d like to share a quick tip for handling 2008 Windows Server Cluster admins. There may come a time, for...
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