Space Reclamation in VMFS 6

VMFS6 file system was in vSphere 6.5. Of the many new features introduced with VMFS6, one of the notable features is Automatic Space Reclamation.

Automatic space reclamation, also sometimes referred to as UNMAP is a feature that allows the hypervisor (vmkernel) to reclaim space when files (data) are (is) deleted from a virtual machine with a thin provisioned disk. The following video from VMware Tech Pubs provides an ease way to understand the same.

 

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