2V0-622D · Question #156
What two enhancements are in VMFS6 but not in VMFS5? (Choose two.)
The correct answer is A. Support for 4k native disks D. Automatic space reclamation. VMFS6 introduced two capabilities not present in VMFS5: support for 4K native (4Kn) storage devices and automatic space reclamation (UNMAP).
Question
What two enhancements are in VMFS6 but not in VMFS5? (Choose two.)
Options
- ASupport for 4k native disks
- BSupport for 512e disks
- CGPT storage device partitioning
- DAutomatic space reclamation
How the community answered
(40 responses)- A93% (37)
- B3% (1)
- C5% (2)
Why each option
VMFS6 introduced two capabilities not present in VMFS5: support for 4K native (4Kn) storage devices and automatic space reclamation (UNMAP).
VMFS6 added native support for 4K sector drives (4Kn), whereas VMFS5 only supported 512-byte and 512e sector drives, reflecting the industry transition to larger physical sector sizes.
Support for 512e (512-byte emulated, 4K physical) disks was already present in VMFS5 and is not an enhancement unique to VMFS6.
GPT (GUID Partition Table) partitioning for storage devices was introduced with VMFS5, replacing MBR partitioning used in VMFS3, so it is not a new VMFS6 feature.
VMFS6 introduced automatic background space reclamation by issuing UNMAP commands to reclaim deleted blocks on thin-provisioned storage, a process that required manual or scheduled execution in VMFS5.
Concept tested: VMFS6 new capabilities vs VMFS5
Source: https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.storage.doc/GUID-CF3B5DCF-5E20-4360-A870-C9F9C1FC6E89.html
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