NS0-165: NetApp Certified Data Administrator, ONTAP

By Netapp · Question Mode

QuestionQ53

ONTAP Storage

An administrator has presented a thin-provisioned iSCSI LUN to an ESXi host. The administrator deleted data from the datastore in ESXi, but no blocks were freed on the LUN.

Which two steps should you use to resolve this issue?

Choose two
Explanation

VMFS must issue SCSI UNMAP requests to inform the thin-provisioned LUN that deleted datastore blocks can be deallocated. Space allocation must also be enabled on the LUN so the storage system supports this space-reclamation behavior. Rescanning discovers storage configuration changes but does not reclaim already deleted blocks.

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