Microsoft Cluster with Windows 2008 R2 on VMware

Posted on October 3rd, 2010 in Server, Tips, Virtualization, vSphere | 4 Comments »

Just did some test today on building the Windows 2008 R2 Cluster on top of VMware vSphere 4.1. This is my 1st time to configure a Microsoft cluster with windows 2008R2. Read through some best practices guide from VMWare and configure it.  Couple of key things you may wanna take note while building a Microsoft cluster on VMware.

1st is the placement for the 2 node cluster virtual machine, which you should consider split the 2 virtual machine in different host and disable the DRS or vMotion for the cluster node. Now is about the quorum disk and data disk you would like to put in the cluster. You may consider using RDM for either physical or virtual mode, and provide separate SCSI controller for the share disk. You will further require configure the SCSI controller as physical mode allow the RDM to be access by the 2nd node later.

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Running Chrome OS on vSphere Update 1

Posted on November 25th, 2009 in Operating Systems, vSphere | No Comments »

Referring to NTPRO Download Chrome OS VMware image post, I’m managed to get Chrome OS running on vSphere update 1 as screen below:

Running Chrome OS on vSphere 4 Update 1

Please make sure you have selected Other 2.6x Linux 32bit as per your guest OS.

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Tips to recover Snapshot problem on VM

Posted on June 29th, 2009 in Tips, Virtualization | 1 Comment »

You may had experienced the snapshot problem when the snapshot delta virtual disk had become huge which is more than 20GB and is not able to be truncated by removing all the snapshot. Usually the problem occur when the snapshot is no longer available from snapshot manager, but you can see the delta files available from the command prompt or physical folder that contain the Virtual machine images. I experienced the 2nd time now which I am not able to remove the snapshot on a particular virtual machine from snapshot manager and command prompt. The production virtual machine was powered off due to disk full on the specify datastore. This virtual machine contain a previous snapshot which taken 2 weeks before and yet to be truncated. The delta disk had grown up to >20 GB and fully fill up the available space within the data store.

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Offline VM Migration auto convert RDM to VMDK format

Posted on April 10th, 2009 in Tips, Virtualization | 2 Comments »

Due to some reconfiguration work we performed on our Virtual Infrastructure, we had required to relocate some of the VM to a different datastore. These VMs which required to be moved had been attached with Raw Device Mapping (RDM). Previously I thought the offline storage migration will not move the RDM over to the datastore as RDM is referring to the raw device from the SAN storage.Actually I was planned to convert the RDM to VMDK which I planned to manual transfer the files I need from RDM to the new virtual disk I created.

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Manual commit snapshots delta file to vmdk flat file

Posted on March 4th, 2009 in Tips, Virtualization | 17 Comments »

I had a tough time this week to deal with the snapshot issue with one of the VM. The VM is containing an important snapshot that previously taken for system restoration. When I browsed through the snapshot manager from vCenter, the system show my VM was running without any snapshots. Here was the kicked start of my problem and excited journey until I managed to recover it this morning.

I tried to SSH to the ESX host and browse to the specified datastore, and I found the snapshot file which end with file extension .vmsn were available in the correct location. No matter how many times I tried and rebooted my Virtual center, the snapshot were not visible to the snapshot manager still.

I read through some articles and forums which suggested to clone the snapshot by using vmkfstools -i option, but it didn’t success in my case here, and I continue my research and here I found a useful blog post from 1 of the blogger  Oliver O’Boyle who experienced similar issue previously.
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