1V0-21.20 · Question #112
How does Storage I/O Control protect the service level of critical virtual machines?
The correct answer is A. Gives preferential I/O resource allocation to critical virtual machines. This question asks how Storage I/O Control (SIOC) protects the service level of critical virtual machines.
Question
How does Storage I/O Control protect the service level of critical virtual machines?
Options
- AGives preferential I/O resource allocation to critical virtual machines
- BAllocates I/O resources equally among all virtual machines
- CMonitors the storage habits of the virtual machines
- Dtakes a count of virtual machines on the storage device
How the community answered
(30 responses)- A90% (27)
- B3% (1)
- C7% (2)
Why each option
This question asks how Storage I/O Control (SIOC) protects the service level of critical virtual machines.
Storage I/O Control (SIOC) monitors datastore I/O latency and, when contention is detected, it dynamically reallocates available I/O bandwidth based on configured shares. This ensures that critical virtual machines, assigned higher I/O shares, receive preferential access to storage resources during periods of congestion, thereby protecting their performance service levels.
Storage I/O Control's purpose is to differentiate I/O resource allocation based on shares, not to allocate resources equally among all virtual machines.
While Storage I/O Control monitors I/O latency to detect congestion, its primary function is to enforce I/O resource allocation, not merely to monitor 'storage habits'.
Counting virtual machines on a storage device is a basic inventory task and does not explain how Storage I/O Control protects service levels through resource management.
Concept tested: VMware Storage I/O Control (SIOC)
Source: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.resmgmt.doc/GUID-1560CC6F-4235-460D-9549-F2E51368903B.html
Topics
Community Discussion
No community discussion yet for this question.