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The vSphere administrator needs to migrate a virtual machine from one host to another. The virtual machine .vswp file resides in local storage.
Which two techniques can the administrator use to migrate the virtual machine? (Choose two.)
A. vMotion migration
B. Cold migration
C. Storage vMotion migration
D. Enhanced vMotion migration
Correct Answer: AB
Explanation/Reference:
Explanation:
We can use vMotion or a cold migration to migrate the virtual machine.
With a vMotion migration, the virtual hard disks remain in place in their current datastore. The .vswp file (virtual swap file) is a temporary file that is created when a VM is started and is deleted when a VM is powered off. During a vMotion migration, the VM is still running so the .vswp file is in place.
During the vMotion migration the contents of the .vswp file are copied to a new .vswp file on the destination host.
A cold migration is a manual migration of a powered of virtual machine. When you power off a virtual machine, the .vswp file is deleted. You can then reconfigure the virtual machine on the destination host and then start the virtual machine. When the virtual machine is started, a new .vswp file is created.
Incorrect Answers:
C: A Storage vMotion migration is used to migrate a virtual machine from one datastore to another. It does not migrate the virtual machine from one host to another. Furthermore, you cannot perform a Storage vMotion migration of a virtual machine when the vswp file resides in local storage.
D: An Enhanced vMotion migration is a combination of a vMotion and a Storage vMotion. An Enhanced vMotion migration is used when you select the “Change Host and Datastore option”. vMotion is used to migrate the virtual machine to a new host and Storage vMotion is used to migrate the migrate the virtual machine to a new datastore. You cannot perform a Storage vMotion migration of a virtual machine when the vswp file resides in local storage so the Enhanced vMotion migration would fail. Therefore, this answer is incorrect.
References:
https://pubs.vmware.com/vsphere-55/index.jsp?topic=%2Fcom.vmware.vsphere.troubleshooting.doc%2FGUID-B749AAA0-7B67-4A79-BEDC-395DFEC9FC60.html