NCM-MCI: Nutanix Certified Master - Multicloud Infrastructure

By Nutanix · Question Mode

QuestionQ25

Analyze and Optimize Storage Performance

An administrator removes a large quantity of data from a Volume Group presented to a Linux VM. The administrator observes that the removed data has not been reclaimed as available storage.

Which action should be taken to reclaim the storage capacity?

Explanation

Deleted filesystem data is reclaimed by the underlying storage only after the guest communicates released blocks through SCSI UNMAP/discard (TRIM). This allows the virtual disk and storage platform to mark those blocks reusable; remounting or shrinking the volume group does not perform that notification.

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