Archive for the ‘vCenter’ Category

Setup cannot create vCenter Server Directory Services instance

Posted on November 30th, 2010 in Tips, vCenter | 1 Comment »

While doing the VMware vCenter 4.1 setup on Windows 2008 R2 recently, I have encountered a problem “Error 28038. Setup cannot create vCenter Server Directory Services instance” after re-setup vCenter server.

The solution is simple as below:

Remove Active Directory Lightweight Directory Services (AD LDS) server role on Windows Server 2008.

  • Click Administrative Tools
  • Click Server Manager
  • Click Roles
  • Click Remove Roles
  • Click Next
  • Un-check Active Directory Lightweight Directory Services
  • Click Next
  • Click Remove
  • Click Close

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Performance Overview charts fail after Daylight Savings changes are applied

Posted on November 9th, 2010 in Announcement, Tips, vCenter, vSphere | No Comments »

Some of you may experience the issue from vCenter once the day light saving changes are applied. The performance record and data from vCenter will not be shown.

Official KB 1030305

Please refer the full KB here. The temporally work around solution are included in the KB as well. According to the KB, this only happen on vCenter 4.1

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Does VMware vCenter Storage Plugin Really Matter?

Posted on November 3rd, 2010 in Storage, vCenter | 5 Comments »

I have a discussion about VMware vCenter Storage Plugin during VMware Hitachi boot camp today.

As I know EMC have EMC Storage Viewer, EMC Celera SRM Failback Tool & EMC Celera SRM Failback Tool and NetApp have Rapid Cloning Utility (RCU), Virtual Storage Console (VSC), SnapManager® for Virtual Infrastructure & SANScreen® VMInsight vCenter Plugin. I’m not going to discuss about the vCenter plugin features here.

Does vSphere admin really need VMware vCenter Storage Plugin?

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Maximize CPU utilization on ESX host with Cisco UCS B250M2

Posted on October 16th, 2010 in Server, Tips, vCenter, Virtualization, vSphere | 4 Comments »

We were doing some stress test with more than 15 VMs on a single B250M2 Cisco UCS blade machine with 2 x Intel 6 Cores 2.93Ghz, and 192GB memory. While are stress test are pretty simple, each VM been provisioned with 2 vCpu and 4GB of physical memory. We maximize the CPU load of all the virtual machine and end up I was able to capture the print screen as attach here.

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Tips to troubleshoot Nexus 1000V

Posted on October 3rd, 2010 in Tips, vCenter, Virtualization, vSphere | No Comments »

If you are deploying nexus 1000v in your VMware vSphere environment, you may usually hit to the point require to unload VEM, VSM or reconfigure. Today I found some tips just to share here. If you accidentally deleted your VSM which before you unload the VSM from the vCenter, you will either end up having orphan nexus 1000V show up in your vCenter. Even if you try to name the same as previous, it will prompt the error telling you that the previous extension key and your current extension are mismatch.

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