Microsoft Case Study: HCI Solutions

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Just a quick link to a Private Cloud Case Study done by Microsoft about one of our partners.

Microsoft Case Study: HCI Solutions

http://www.microsoft.com/casestudies/Microsoft-System-Center-2012/HCI-Solutions/Healthcare-Firm-Gains-More-Efficiency-Cuts-Costs-with-Private-Cloud-Environment/710000000186

 

d-on-d – Datacenter On Demand

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d-on-d

This week I could present some of the new features in Windows Server 8 Hyper-V on an event organized by Microsoft Switzerland in a very cool location. I am talking about D-ON-D (Datacenter on demand) which is run by Kybernetika.

D-ON-D offers you to rent servers and rooms for events, workshops, test project or demos.

If you want to know more about what D-ON-D offers check out the websites:

Windows 8 Consumer Preview: Cannot acces NetApp CIFS share

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If you try to connect to a NetApp CIFS share via Windows 8 beta you may cannot access the share because of the following error:

SMB connections fail with error “Invalid Signature”

Cause:

This behavior may be due to the “Secure Negotiate” feature added to SMB 2.24 for the Windows “8″ beta release, which relies on the correct signing of error responses by all SMB 2 servers (including those supporting only protocol versions 2.0 and 2.1). Some third-party file servers do not respond with a signed error response causing the connection to fail.

Microsoft has two workrounds for this problem:

  • Enable signing on the third-party file server.
  • Disable “Secure Negotiate” on the client.

You can disable “Secure Negotiate” with the following PowerShell command:

Set-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters" RequireSecureNegotiate -Value 0 -Force

Checkout the Microsoft KB2686098

Update

Only some minutes after I released this blog post I got an anwser from Glenn Sizemore (NetApp) how you can enable SMB 2 signing on the NetApp.

ONTAP CLI:

options cifs.smb2.signing.required on

PowerShell:

ipmo DataONTAP
Connect-NaController controller
Set-NaOption cifs.smb2.signing.required off

Thanks for that.

System Center 2012 RTM downloads available

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Since last weekend System Center 2012 RTM downloads are ready for Volume License Customer and Monday night the SC2012 downloads are also available for MSDN and TechNet subscription owners.

http://msdn.microsoft.com

http://technet.microsoft.com

 

Windows Server 8: Enable CSV Cache

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Windows Server 8

In Windows Server 8 beta, Microsoft released a lot of new features for Cluster Shared Volumes (CSV). One of them is CSV Cache. CSV Cache gives you the possibility to allocate system memory (RAM) of the cluster nodes as cache. This can improve the performance of read requests in workloads like Hyper-V.

Now to enable the CSV Cache on a cluster you have to do this with Windows PowerShell.

  1. First open the PowerShell prompt
  2. Set the size of the CSV Cache. The default it 512MB. With this command you will reserve the Memory on all Cluster nodes for caching. 
    (Get-Cluster). SharedVolumeBlockCacheSizeInMB = 512
  3. Now you have to enable the Cache on on the Cluster Shared Volumes you want to use. 
    Get-ClusterSharedVolume “Cluster Disk 1” | Set-ClusterParameter  CsvEnableBlockCache 1

If you want to know more about CSV Cache, you can read this blog post from Elden Christensen on the Failover Clustering and Network Load Balancing Team Blog.