exam questions

Exam 5V0-21.19 All Questions

View all questions & answers for the 5V0-21.19 exam

Exam 5V0-21.19 topic 1 question 34 discussion

Actual exam question from VMware's 5V0-21.19
Question #: 34
Topic #: 1
[All 5V0-21.19 Questions]

The cluster level backend IOPS performance graph shows a higher-than-average number of IOPS.
What is a possible reason for this?

  • A. Data resynchronizations
  • B. Low volume of vSAN vital memory pools
  • C. DRS invoking multiple vMotion migrations
  • D. Destaging congestion
Show Suggested Answer Hide Answer
Suggested Answer: A 🗳️
Reference:
https://kb.vmware.com/s/article/2144493

Comments

Chosen Answer:
This is a voting comment (?). It is better to Upvote an existing comment if you don't have anything to add.
Switch to a voting comment New
Lazylinux
3 years, 6 months ago
A for sure... vSAN cluster read IOPS of resync traffic, including policy change, repair, maintenance mode / evacuation and rebalance from resyncing objects in the perspective of vSAN backend. https://kb.vmware.com/s/article/2144493#vSANBackendGraph
upvoted 1 times
...
Dzma
4 years, 4 months ago
A for sure! Measuring at the cluster level provides context, and helps identify influencing factors. Remember that vSAN is a cluster based storage solution, and VM data is not necessarily always residing on the host that the VM is residing. While it might seem odd to check look at performance metrics at this level as the second step, it can often help provide an understanding to the level of activity across the cluster. For example, perhaps a VM latency spikes occur during the middle of the night. After identifying the VM level statistics, viewing the cluster level statistics might show a substantial amount of noise coming from other VMs, or perhaps backend resynchronization traffic. To view the vSAN cluster based performance metrics, highlight the cluster, click on Monitor > vSAN > Performance to view the respective VM, backend, or iSCSI performance metrics. https://core.vmware.com/resource/troubleshooting-vsan-performance
upvoted 1 times
...
diegof1
4 years, 5 months ago
A is right.
upvoted 1 times
...
Community vote distribution
A (35%)
C (25%)
B (20%)
Other
Most Voted
A voting comment increases the vote count for the chosen answer by one.

Upvoting a comment with a selected answer will also increase the vote count towards that answer by one. So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.

SaveCancel
Loading ...