2V0-621 · Question #147
After configuring a Virtual SAN cluster, an administrator using the vSphere Web Client notices that the Virtual SAN datastore is smaller than expected. The cluster contains: - Three ESXi hosts…
The correct answer is A. There is a network problem with the Virtual SAN vmkernel ports. A network problem with the Virtual SAN vmkernel ports prevents hosts from communicating, causing only one host's storage to contribute to the datastore instead of all three.
Question
After configuring a Virtual SAN cluster, an administrator using the vSphere Web Client notices that the Virtual SAN datastore is smaller than expected. The cluster contains:
- Three ESXi hosts
- Each host has one 10GB SDD
- Each host has one 100GB HDD
Why would the Virtual SAN datastore show as 100GB instead of 300GB?
Options
- AThere is a network problem with the Virtual SAN vmkernel ports.
- BThe Virtual SAN VASA provider is disabled.
- CvSphere High Availability is enabled on the Virtual SAN cluster.
- DThe Virtual SAN cluster must be managed using the vSphere Web Client.
How the community answered
(65 responses)- A52% (34)
- B12% (8)
- C6% (4)
- D29% (19)
Why each option
A network problem with the Virtual SAN vmkernel ports prevents hosts from communicating, causing only one host's storage to contribute to the datastore instead of all three.
Virtual SAN requires dedicated vmkernel ports with proper network connectivity between all cluster hosts; if those ports are misconfigured or have a network fault, the remaining hosts cannot join the VSAN cluster and only the local host's 100GB HDD is seen, resulting in a 100GB datastore instead of the expected 300GB.
The VASA provider enables storage policy-based management and profile awareness; disabling it does not reduce the physical storage capacity visible in the VSAN datastore.
vSphere High Availability uses VSAN storage but does not reduce or limit the advertised capacity of the VSAN datastore.
The requirement to use the vSphere Web Client is a management interface restriction, not a storage capacity constraint, and would not affect datastore size reporting.
Concept tested: Virtual SAN cluster network connectivity requirements
Source: https://docs.vmware.com/en/VMware-vSAN/7.0/com.vmware.vsан.monitoring.doc/GUID-network-health.html
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