5V0-22.23 · Question #59
An all-flash vSAN ESA cluster contains four nodes. Which two storage policies can the cluster satisfy? (Choose two.)
The correct answer is C. FTT=l (RAID-5 Erasure Coding) D. FTT=l (RAID-1 Mirroring). With 4 hosts, only C and D are possible on a vSAN ESA cluster. D would be also possible on a vSAN OSA cluster (RAID-5 FTT1 would need at least 5 hosts in this case). RAID-1 with FTT 2 and FTT 3 need respectively 5 and 7 hosts as a minimum. RAID-6/FTT 2 needs at least 6 hosts…
Question
An all-flash vSAN ESA cluster contains four nodes. Which two storage policies can the cluster satisfy? (Choose two.)
Options
- AFTT=3 (RAID-1 Mirroring)
- BFTT=2 (RAID-1 Mirroring)
- CFTT=l (RAID-5 Erasure Coding)
- DFTT=l (RAID-1 Mirroring)
- EFTT=2 (RAID-6 Erasure Coding)
How the community answered
(24 responses)- A8% (2)
- B4% (1)
- C83% (20)
- E4% (1)
Explanation
With 4 hosts, only C and D are possible on a vSAN ESA cluster. D would be also possible on a vSAN OSA cluster (RAID-5 FTT1 would need at least 5 hosts in this case). RAID-1 with FTT 2 and FTT 3 need respectively 5 and 7 hosts as a minimum. RAID-6/FTT 2 needs at least 6 hosts https://core.vmware.com/resource/vmware-vsan-design-guide
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