2V0-21.23 Question 321
Select 3Your organization is experiencing performance issues with a datastore that is shared by multiple virtual machines (VMs). You have been tasked with ensuring that critical VMs receive a higher share of storage resources during periods of contention. You decide to enable and configure Storage I/O Control (SIOC) on the datastore. Which of the following steps must you perform to correctly configure SIOC in your environment?
- A
Enable Storage I/O Control on the datastore.
- B
Set the congestion threshold value for the datastore.
- C
Assign Storage Policies with IOPS limits to all virtual machines.
- D
Configure per-VM shares for the virtual machines accessing the datastore.
- E
Disable VMware HA on the cluster before enabling SIOC.
Show answer and explanation
Correct answers: A, B, D
Explanation
To configure Storage I/O Control (SIOC) effectively, you must first enable it on the datastore, set the congestion threshold value to identify when SIOC should activate, and configure per-VM shares to prioritize storage resources during contention. Assigning storage policies with IOPS limits is a separate feature and not required for SIOC. Disabling VMware HA is unnecessary and unrelated to SIOC configuration.
- A. Correct.
Correct. Enabling Storage I/O Control on the datastore is a necessary step to allow the feature to manage storage resource allocation during contention.
- B. Correct.
Correct. The congestion threshold determines when SIOC will trigger to manage storage contention. This is a critical configuration step.
- C. Incorrect.
Incorrect. Assigning Storage Policies with IOPS limits is not required to configure SIOC. It is a separate feature for managing storage performance but not mandatory for enabling SIOC.
- D. Correct.
Correct. Configuring per-VM shares allows you to prioritize certain VMs over others during contention, aligning with the goal of providing critical VMs with higher priority.
- E. Incorrect.
Incorrect. Disabling VMware HA is not required for enabling or configuring SIOC. VMware HA can coexist with SIOC without issues.