2V0-621 · Question #71
An administrator is having a problem configuring Storage I/O Control on a Datastore. Which two conditions could explain the issue? (Choose two.)
The correct answer is A. A host is running ESXi 4.0. B. An ESXi host does not have appropriate licensing. Storage I/O Control requires a minimum ESXi host version of 4.1 and Enterprise Plus licensing on every host accessing the datastore. Either an outdated host version or insufficient licensing will block SIOC from being configured.
Question
An administrator is having a problem configuring Storage I/O Control on a Datastore. Which two conditions could explain the issue? (Choose two.)
Options
- AA host is running ESXi 4.0.
- BAn ESXi host does not have appropriate licensing.
- CThe vCenter Server version is 5.0.
- DThe vCenter Server License is Standard.
How the community answered
(20 responses)- A80% (16)
- C15% (3)
- D5% (1)
Why each option
Storage I/O Control requires a minimum ESXi host version of 4.1 and Enterprise Plus licensing on every host accessing the datastore. Either an outdated host version or insufficient licensing will block SIOC from being configured.
SIOC was introduced in vSphere 4.1, so an ESXi 4.0 host is incompatible with the feature; because all hosts accessing the datastore must support SIOC, even one unsupported host prevents it from being enabled on that datastore.
SIOC requires VMware vSphere Enterprise Plus licensing on each participating ESXi host; a host with a lower tier license such as Enterprise or Standard cannot use SIOC, blocking configuration on any datastore that host accesses.
vCenter Server 5.0 fully supports configuring Storage I/O Control, so the vCenter version is not a valid explanation for the configuration problem.
The vCenter Server license tier does not restrict Storage I/O Control; it is the ESXi host license that must be Enterprise Plus, not the vCenter license level.
Concept tested: Storage I/O Control host version and licensing prerequisites
Source: https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.resmgmt.doc/GUID-37CC0E44-7BC7-479C-81DC-520B4A13C305.html
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