Broadcom-VMware
2V0-621 · Question #191
2V0-621 Question #191: Real Exam Question with Answer & Explanation
The correct answer is B: Use VMware Converter to migrate the virtual machine to a new datastore. This will recreate the. Reclaiming previously used thin-provisioned disk blocks on VAAI-compliant arrays requires either recreating the disk via Converter migration or issuing an UNMAP command through esxcli.
Question
An administrator needs to recover disk space on a previously-used thin provisioned virtual disk. The volumes where the administrator needs to recover the disk blocks are on VAAI-compliant storage arrays. Which two actions should the administrator take accomplish this task? (Choose two.)
Options
- APerform a Storage vMotion to another volume in order to force free space recovery to occur.
- BUse VMware Converter to migrate the virtual machine to a new datastore. This will recreate the
- CIssue the vmkfstools -vmfs unmap command within the VMFS volume directory on the ESXi host
- DExecute the esxcli storage vmfs unmap command.
Explanation
Reclaiming previously used thin-provisioned disk blocks on VAAI-compliant arrays requires either recreating the disk via Converter migration or issuing an UNMAP command through esxcli.
Common mistakes.
- A. Storage vMotion migrates the disk to another volume but does not necessarily trigger block-level reclamation on the source; it does not issue UNMAP commands to the original array.
- C. vmkfstools does not have a -vmfs unmap option; the correct tool for issuing VMFS UNMAP operations from the ESXi command line is esxcli, making this command invalid.
Concept tested. Thin provisioned disk space reclamation with VAAI UNMAP
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