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2V0-621 · Question #213

Refer to the Exhibit. The Exhibit shows the status of vmhba32 and vmhba33 as Unbound. What is a likely reason for this status?

The correct answer is A. The host bus adapter is not associated with a vmknic. A VMware software iSCSI adapter shows 'Unbound' when it has not been associated with a VMkernel network adapter (vmknic), preventing it from sending iSCSI traffic.

Section 3 – Configure and Administer vSphere 6.x Storage

Question

Refer to the Exhibit. The Exhibit shows the status of vmhba32 and vmhba33 as Unbound. What is a likely reason for this status?

Exhibit

2V0-621 question #213 exhibit

Options

  • AThe host bus adapter is not associated with a vmknic.
  • BThe Dynamic Target Discovery was not configured.
  • CThe Static Target Discovery was not configured.
  • DThe host bus adapter is not associated with a vmnic.

How the community answered

(37 responses)
  • A
    73% (27)
  • B
    16% (6)
  • C
    8% (3)
  • D
    3% (1)

Why each option

A VMware software iSCSI adapter shows 'Unbound' when it has not been associated with a VMkernel network adapter (vmknic), preventing it from sending iSCSI traffic.

AThe host bus adapter is not associated with a vmknic.Correct

Software iSCSI adapters in vSphere must be explicitly bound to one or more VMkernel ports (vmknics) to transmit iSCSI traffic over the network. Without this binding, the adapter has no network path and reports an 'Unbound' status in the Storage Adapters view. Binding is performed via the Network Port Binding tab on the iSCSI adapter.

BThe Dynamic Target Discovery was not configured.

Dynamic Target Discovery configures how the adapter finds iSCSI targets via a SendTargets server, but has no effect on whether the adapter itself is bound to a network interface.

CThe Static Target Discovery was not configured.

Static Target Discovery manually adds specific iSCSI target addresses, but does not affect the bound or unbound state of the adapter.

DThe host bus adapter is not associated with a vmnic.

A vmnic is a physical NIC uplink; software iSCSI adapters bind to VMkernel adapters (vmknics), not directly to vmnics, making this distinction technically incorrect.

Concept tested: vSphere software iSCSI adapter network port binding

Source: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.storage.doc/GUID-C476065E-C02F-47FA-A5F7-3B3F2FD40EA4.html

Topics

#iSCSI#vmknic binding#HBA status#software iSCSI

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