Virtual Machine not powered on


Symptoms:  When you try to power on the virtual machine, it will prompt an Error message

*** “Power On virtual machine “Problem hostname” “Cannot open the disk ‘/vmfs/volumes/4d9b-1ac4-64942165-8c95-0023aef-99ef0/”problem hostname”/”*******.vmdk” or one of the snapshot disks it depends on.

Reason: Argument list too long.View details…System “Problem hostname” 28-12-2011 10:54:28 28-12-2011 10:54:28 28-12-2011 10:54:31 ***

Root cause of the problem: On that particular VM the backup has been performed and the backup software has not restored the snapshot perfectly  which creates all the issues.

Solution:  The problem was arise due to invalid .vmdk file  was pointed to that host machine. This can be verified by the file size of .vmdk file in the required path.

# cd /vmfs/volumes/storage volume name/hostname/

Type

# ls –lh

It will prompt you all the file size of the hostname like vmdk,vmx etc….

Remove or move the unwanted .vmdk file which is pointed to that hostname.

We can identify the unwanted .vmdk file which is mounted in that host, by right click the host in the vcenter and select edit settings. Check the hard disk, in the right hand side you can able to find the disk file (top most) there you can able to find the .vmdk disk file name.

After removing the unwanted vmdk file, please attach the correct vmdk file to that VM and try to power on the VM.

The VM will be powered on without any issues.

 Note:  This problem I tried myself and the solutions works. There is no reference site available.

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One Response to Virtual Machine not powered on

  1. anthonyvenable110 says:

    great post

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