What two enhancements are in VMFS6 but not in VMFS5? (Choose two.)
A.
Support for 4k native disks
B.
Support for 512e disks
C.
GPT storage device partitioning
D.
Automatic space reclamation
Explanation:
http://vsphere-land.com/news/a-comparison-of-vmfs5-vmfs6-in-vsphere-6-5.html
A,D.
http://www.yellow-bricks.com/2016/10/18/vsphere-6-5-whats-new-vmfs-6-core-storage/
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What’s New in VMFS 6 Datastore
Support for 4K Native Drives in 512e mode
Space Efficient Virtual Disk (SE Sparse disk) is now default
Automatic Space Reclamation
Support for 512 devices and 2000 paths
View Storage Accelerator (Content Based Read Cache (CBRC))
http://vmwareinsight.com/Articles/2017/5/5800921/vSphere-6-5-What-s-New-in-VMFS-6-Datastore
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Answer A is not properly worded but correct.
https://kb.vmware.com/s/article/2091600
ESXi 6.5 can use 4K AF disks if they use 512e (e=emulation, the physical size of the sectors is 4096 bytes but logically the drive presents sector sizes of 512 bytes. The 4K drive is pretending to be an older 512 one.).
True 4K AF drives where both the physical and logical sector size is 4K is currently not supported in any current release of vSphere/vSAN.
Answer D is also correct – automated UNMAP is a great new feature.
See page 33 of the ‘What’s New in VMware vSphere 6.5 Technical White paper’ for more data regarding the above two answers and other storage enhancements.
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But if you want to be literal, then answer B is a better fit than answer A.
512e was already supported in vSphere 6.0 for RDM though.
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“Do current GA versions of vSphere and VSAN support 4K Native drives?
No. 4K Native drives are not supported in current GA releases of vSphere and vSAN.”
Source:
https://kb.vmware.com/s/article/2091600
This has to be B, D.
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Though it’s true that vSphere 6.5 does not support 4Kn drives, VMFS6 does.
” all metadata on VMFS-6 is aligned on 4KB blocks. This means that VMFS-6
is ready to fully support the new, larger capacity, 4KN sector disk drives when vSphere supports them.” (from vsphere 6.5 storage datasheet)
The question is about VMFS6, not vSphere. So it’s A,D.
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B & D is correct .
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.storage.doc/GUID-7552DAD4-1809-4687-B46E-ED9BB42CE277.html
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again another blurry question .. these ones need to be reported in exam .. totally unfair!
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