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Cannot power on a virtual machine located in an NFS datastore (2037507)
- You are unable to power on a virtual machine which is located in an NFS datastore
- Powering on a virtual machine that is located in an NFS datastore fails
- You see the error:
Failed to lock the file. Cannot open the disk '/vmfs/volumes/UUID/VM_Name/VM_Name.vmdk' or one of the snapshot disks it depends on.
- In the /vmfs/volumes/datastore_name/virtual_machine_folder/vmware.log file, you see entries similar to:
vmx| DISKLIB-VMFS : "/vmfs/volumes/UUID/VM_Name/VM_Name-flat.vmdk" : failed to open (Failed to lock the file): AIOMgr_Open failed. Type 3
vmx| DISK: Cannot open disk "/vmfs/volumes/UUID/VM_Name/VM_Name.vmdk": Failed to lock the file (16392).
vmx| Msg_Post: Error
vmx| [msg.disk.noBackEnd] Cannot open the disk '/vmfs/volumes/UUID/VM_Name/VM_Name.vmdk' or one of the snapshot disks it depends on.
- In the /var/log/vmkernel file, you see entries similar to:
NFSLock: 2819: failed to get lock on file VM_Name.vmdk 0x000000000000 on ip> (ip): Busy
WARNING: NFSLock: 2128: disk is being locked by other consumer
NFSLock: 2819: failed to get lock on file <VM_Name>-flat.vmdk 0x000000000000 on ip (ip): Busy
Note: When an ESX host accesses a virtual machine disk file on an NFS-based datastore, a special .lck-xxx lock file is generated in the same directory where the disk file resides. This file prevents other ESX hosts from accessing this virtual disk file.
To resolve this issue, delete the .lck-xxxx file located within the virtual machine folder.
To delete the .lck-xxxx file:
- Ensure that the virtual machine powered off.
- Connect to the ESX host using SSH. For more information, see Connecting to an ESX host using a SSH client (1019852)
- Go to the virtual machine folder using this command:
- Run this command to list all the files, including the hidden files:
- Run this command to remove the lock file:
Where xxxx is a sequence of numbers. For example, lck-001455721.
Note: Ensure that the virtual machine is not running. If you are not comfortable with removing the lock file, contact VMware Support.
- Power on the virtual machine.
Note: When the virtual machine is powered on, you see a new .lck-xxxx file generated in the virtual machine folder. This is an expected behavior.
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