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If this occurs, the VMFS volume (and the virtual machines residing on the affected volume) are unavailable to the ESX/ESXi host

Log in to the terminal of the VMware ESX or ESXi host and run the following commands:

1. Break the existing LVM lock on the datastore:
   
   
   # vmkfstools –B <vmfs device>
   
   
   
   Note: You can also use the parameter --breaklock instead of -B with the vmkfstools command.
   
   From the error message above, the following command is used:
   
   
   
   # vmkfstools -B /vmfs/devices/disks/naa.60060160b3c018009bd1e02f725fdd11:1
   
   
   The following output will be displayed:
   
   
   VMware ESX Question:
   LVM lock on device /vmfs/devices/disks/naa.60060160b3c018009bd1e02f725fdd11:1 will be forcibly broken. Please consult vmkfstools or ESX documentation to understand the consequences of this.
   
   Please ensure that multiple servers aren't accessing this device.
   
   Continue to break lock?
   0) Yes
   1) No
   
   Please choose a number [0-1]:
   
   
2. Enter 0 to break the lock.
   
   
3. Re-read and reload VMFS datastore metadata to memory:
   
   # vmkfstools –V
   
   
4. From the vSphere UI, Refresh the Storage Datastores View under Configuration tab.