What is VAAI?

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This is more of a post for myself going over VAAI before I take my VCP 5 exam soon, so I wanted to get some pixels on the screen about VAAI.

VAAI stands for vSphere Storage API's for Array Integration. It has been around since vSphere 4.1 and is used to 'pass' storage related functions to the array rather than being performed by ESXi.

Some of the benefits from using VAAI are:

Hardware Accelerated Full Copy tasks such as power on VM's or cloning VM's are more efficient.

Read more here