5V0-22.21 · Question #144
Which situation could cause a vSAN stretched cluster to fail?
The correct answer is A. Blocked UDP ports on the firewall between data sites. A stretched cluster in vSAN requires a reliable, low latency Layer 3 communication from the data sites to the witness site. Therefore, an interruption of Layer 3 communication from the data sites to the witness site could cause a vSAN stretched cluster to fail. Additionally…
Question
Which situation could cause a vSAN stretched cluster to fail?
Options
- ABlocked UDP ports on the firewall between data sites
- BStatic routes between the witness site and data sites
- CLayer 3 communication from the data sites to the witness site
- D5ms round-trip lime (RTT) between data sites
How the community answered
(26 responses)- A77% (20)
- B4% (1)
- C12% (3)
- D8% (2)
Explanation
A stretched cluster in vSAN requires a reliable, low latency Layer 3 communication from the data sites to the witness site. Therefore, an interruption of Layer 3 communication from the data sites to the witness site could cause a vSAN stretched cluster to fail. Additionally, blocked UDP ports on the firewall between data sites and high latency (RTT) of more than 5ms between data sites could also cause failure of the vSAN stretched cluster. https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.virtualsan.doc/GUID- 30F37DFF-1F90-42F8-A32A-F2F6A47E9A9A.html
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