An administrator created a six node Virtual SAN cluster, created a fault domain, and moved three of the six nodes into that domain.
A node that is a member of the fault domain fails.
What is the expected result?
A. The remaining two fault domain members are treated as failed.
B. The remaining two fault domain members stay protected by the domain.
C. One of the non-member nodes will be automatically added to the fault domain.
D. VMware High Availability will restart virtual machines on remaining nodes in the domain.
Correct Answer: A
Explanation/Reference:
Explanation:
Defines the number of host and device failures a virtual machine object can tolerate. For n failures tolerated, n+1 copies of the virtual machine object are created and 2*n+1 hosts contributing storage are required. When provisioning a virtual machine, if you do not choose a storage policy, Virtual SAN assigns this policy as the default virtual machine storage policy.
Default value is 1. Maximum value is 3. If fault domains are configured, 2n+1 fault domains with hosts contributing capacity are required. A host, which is not part of any fault domain is considered as its own single host fault domain.
Default value is 1. Maximum value is 3.
NOTE If you do not want Virtual SAN to protect a single mirror copy of virtual machine objects, you can specify the Number of failures to tolerate=0. However, the host might experience unusual delays when entering maintenance mode. The delay occurs because Virtual SAN has to evacuate the object from the host for the maintenance operation to complete successfully. Setting the Number of failures to tolerate=0 means that your data is unprotected, and you might lose data when the Virtual SAN cluster encounters a device failure.
NOTE When creating a new storage policy, if you do not specify any value for Number of failures to tolerate, by default, Virtual SAN creates a single mirror copy of the virtual machine objects and tolerates only one failure. However, in the event of a multiple component failures your data might be at risk. link: https://pubs.vmware.com/vsphere-60/topic/com.vmware.ICbase/PDF/virtual-san-60-administration-guide.pdf
