Nimble Storage NimbleOS3 VAAI XCOPY Testing

Introduction Nimble Storage arrays are one of my favourite SAN arrays to work with at the moment. However, until Nimble OS3 which was made GA on the 31st of August, 2016, there was no support for the XCOPY VAAI primitive. This meant that when performing actions such as a storage vMotion that moved data between datastores on the same array, or cloning virtual machines, the ESXi host performing the action was required to read the data from the array up through the ESXi host, and then write it back to the array, creating additional load on the ESXi host and traffic on the storage adapters and network.