Virtualization

Items related to virtualization, with a focus on Microsoft Hyper-V

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Hyper-V Cluster Console Crash Windows Server 2012

Posted on by Rhoderick Milne [MSFT]

Update 1-3-2013:  You may also want to reference the Hyper-V 2012 and Cluster update wiki pages as linked & discussed here.

After building up a nice new Windows Server 2012 Hyper-V cluster with SCVMM 2012 SP1, it was a bit strange to get the world’s longest error when opening up the Failover Cluster MMC.  The error started with:

A weak event was created and it lives on the wrong object, there is… Read the rest “Hyper-V Cluster Console Crash Windows Server 2012”

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Windows Server 2012 Hyper-V Architecture Poster

Posted on by Rhoderick Milne [MSFT]

The updated version of Windows 2012’s Hyper-V Architecture component poster is now available for download which is pretty neat!

 

Windows Server 2012 Hyper-V Component Architecture Poster

 

As an added bonus, there are companion references for Hyper-V Replica, Hyper-V Storage, VM Mobility and Networking.

 

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The Windows Server 2008 R2 SP1 Hyper-V poster is available here if you want to round out your collection Smile

 

Cheers,

Rhoderick

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Monitoring Removal of Hyper-V AVHD Files

Posted on by Rhoderick Milne [MSFT]

Have you used Windows 2008 and Windows 2008 R2 Hyper-V; created a snapshot, deleted it and then wondered why the snapshot files are still hanging around?    Like to know what to expect and the EventIDs that are associated with snapshot removal?

Likely you will be familiar with .vhd files which are the disk storage files in currently released versions of Hyper-V.  It is also possible for other organi… Read the rest “Monitoring Removal of Hyper-V AVHD Files”

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Download Hyper-V Best Practices Analyzer (BPA)

Posted on by Rhoderick Milne [MSFT]

This tool has been out for a while, but have seen multiple customers not leveraging it on their Hyper-V servers as it is not installed by default on Windows 2008 or Windows 2008 R2 Hyper-V hosts.

It is particularly useful for ensuring that the integration components inside the VM are the correct version.  Note the Best Practices Analyzer section at the bottom of this screenshot:

Server Manager with Hyper-V BPA Installed

You can use Hyper-V … Read the rest “Download Hyper-V Best Practices Analyzer (BPA)”

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List Of Updates for Hyper-V

Posted on by Rhoderick Milne [MSFT]

Previously the list of updates for Hyper-V was stored and maintained as part of the regular TechNet documentation.

Customers asked to have an RSS feed that they could subscribe to and for the list to be maintained in a more rapid fashion.

Thus the update list was moved from TechNet to a new location on the TechNet wiki.

Windows 2008 R2 Hyper-V Update List

You may subscribe to the RSS feed for the Windows 2008 R2 update list here.

Should … Read the rest “List Of Updates for Hyper-V”

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Required Hotfix For Windows 8 VM Running on Hyper-V 2008 or 2008 R2 Host

Posted on by Rhoderick Milne [MSFT]

EDIT 8-2-2013:  A new update KB 2744129 has superseded the  original KB 2526776

Please note that this new update now applies to Hyper-V 2008 and 2008 R2  -- the original was only for R2.

 

If you are testing out Windows 8 as a VM which is hosted on a Windows 2008 or 2008 R2 Hyper-V server, then you will need to install the following update.

 

 

An update that enables the Windows Developer… Read the rest “Required Hotfix For Windows 8 VM Running on Hyper-V 2008 or 2008 R2 Host”

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“Slow” File Copy Issues

Posted on by Rhoderick Milne [MSFT]

 

A recent performance issue case revolved around slow disk access times, and the impact that this had on Hyper-V and Windows in general.

The customer had identified that one of their SAN units was dramatically out performing another one, even though the slower unit should have been orders of magnitude faster – well, at least on paper!

As part of their tests IOMeter was used along with copying l… Read the rest ““Slow” File Copy Issues”

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Hyper-V 2008 R2 Architecture Poster (with SP1)

Posted on by Rhoderick Milne [MSFT]

 

Link to the updated Hyper-V poster for 2008 R2 SP1 is here.

 

Overview

This poster provides a visual reference for understanding key Hyper-V technologies in Windows Server 2008 R2 Service Pack 1. It focuses on architecture, snapshots, live migration, virtual networking, storage, RemoteFX and Dynamic Memory. You can use this poster in conjunction with the previously published Windows Server… Read the rest “Hyper-V 2008 R2 Architecture Poster (with SP1)”

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Hyper-V Connectivity Issue

Posted on by Rhoderick Milne [MSFT]

Update:  Newer firmware has been released since this was originally posted.

Ran into an interesting issue last week with a HP DL 585 Hyper-V host which had intermittent network connectivity over one of its defined virtual networks.

In the system event log the following warning was logged:

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To resolve the issue, HP has released an updated NIC driver which is dated 11-11-2011.

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The below is pasted from abo… Read the rest “Hyper-V Connectivity Issue”