Which three design requirements must be satisfied to enable RAID-6 objects in a VMware vSAN cluster?
(Choose three.)
A.
vSAN Advanced license or higher
B.
vSAN stretched cluster
C.
at least six hosts contributing storage
D.
deduplication and compressionE. All Flash configuration
Explanation:
http://cormachogan.com/2016/02/15/vsan-6-2-part-2-raid-5-and-raid-6-configurations/
A,C,E
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.virtualsan.doc/GUID-AD408FA8-5898-4541-9F82-FE72E6CD6227.html
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.virtualsan.doc/GUID-ED76D553-0AB5-44EC-BEB7-A054C5BAE7A3.html
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.virtualsan.doc/GUID-6D818555-8DE8-4F06-9498-66903FB9C775.html
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They ask for three answer
A.C.D.
Explanation link is correct
D answer is deduplication and compression which is incorrect
A,C,E
A, C, E
https://docs.vmware.com/en/VMware-vSphere/6.0/com.vmware.vsphere.virtualsan.doc/GUID-AD408FA8-5898-4541-9F82-FE72E6CD6227.html
https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/products/vsan/vmware-vsan-65-licensing-guide.pdf
RAID-5 and RAID-6 are fully supported with the new deduplication and compression mechanisms which were also introduced with VSAN 6.2.
Consider these guidelines when you configure RAID 5 or RAID 6 erasure coding in a Virtual SAN cluster.
RAID 5 or RAID 6 erasure coding is available only on all-flash disk groups.
On-disk format version 3.0 or later is required to support RAID 5 or RAID 6.
You must have a valid license to enable RAID 5/6 on a cluster.
RAID 5/6 is not supported on stretched clusters.
You can achieve additional space savings by enabling deduplication and compression on the Virtual SAN cluster.
CDE is the correct answer
My Opinion
A: Is a must without a doubt.
B: Not supported without a doubt.
C: Is a must without a doubt.
D: supported but not a must.
E: Is a must without a doubt.