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Which three operations can cause VMFS metadata updates? (Choose three.)

A.
Restarting a VM using the guest OS.

B.
Launching a VM console.

C.
Migrating a VM with vMotion.

D.
Powering a VM on or off.

E.
Expanding a VMFS datastore.

Explanation:
Metadata is updated each time you perform datastore or virtual machine management operations. Examples of
operations requiring metadata updates include the following:
• Creating, growing, or locking a virtual machine file
• Changing a file’s attributes
• Powering a virtual machine on or off
• Creating or deleting a VMFS datastore
• Expanding a VMFS datastore
• Creating a template
• Deploying a virtual machine from a template
• Migrating a virtual machine with vMotion
https://pubs.vmware.com/vsphere-50/index.jsp?topic=%2Fcom.vmware.vsphere.storage.doc_50%2FGUID-7A385576-9434-432E-92C4-51E26A4761AA.html

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Comments

  1. jonni

    https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.storage.doc/GUID-7A385576-9434-432E-92C4-51E26A4761AA.html

    VMFS Metadata Updates
    A VMFS datastore holds virtual machine files, directories, symbolic links, RDM descriptor files, and so on. The datastore also maintains a consistent view of all the mapping information for these objects. This mapping information is called metadata.

    Metadata is updated each time you perform datastore or virtual machine management operations. Examples of operations requiring metadata updates include the following:


    Creating, growing, or locking a virtual machine file


    Changing a file’s attributes


    Powering a virtual machine on or off


    Creating or deleting a VMFS datastore


    Expanding a VMFS datastore


    Creating a template


    Deploying a virtual machine from a template


    Migrating a virtual machine with vMotion

    When metadata changes are made in a shared storage enviroment, VMFS uses special locking mechanisms to protect its data and prevent multiple hosts from concurrently writing to the metadata.

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