Running VMFS Unmap via PowerCLI

Starting in vSphere 5.5, VMware introduced a new command in the esxcli namespace that allows deleted blocks to be reclaimed on thin provisioned LUNs that support the VAAI UNMAP primitive. You can run the command without any maintenance window, and the reclaim mechanism has been enhanced: Reclaim disk space size can be specified in blocks instead of a percentage value…

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