Techniques for performing virtual machine software upgrades using virtual disk swapping
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United States of America Patent
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Aug 18, 2015
Grant Date -
Jul 17, 2014
app pub date -
Jan 14, 2013
filing date -
Jan 14, 2013
priority date (Note) -
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Abstract
In one embodiment, a computer system creates a first template VM that includes a first OS VMDK and a first software binary VMDK, and clones the first template VM to create a linked clone VM. The linked clone VM executes a guest OS by accessing the first OS VMDK and a software application by accessing the first software binary VMDK. The computer system further creates a second template VM that includes a second software binary VMDK, where the second software binary VMDK includes one or more upgrades to the software application that are not included in the first software binary VMDK. The computer system then detaches the first software binary VMDK from the linked clone VM and attaches the second software binary VMDK to the linked clone VM. The linked clone VM thereafter executes the software application by accessing the second software binary VMDK.
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