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Exam 2VB-601 topic 1 question 46 discussion

Actual exam question from VMware's 2VB-601
Question #: 46
Topic #: 1
[All 2VB-601 Questions]

Given a limited maximum queue depth, what can an administrator do to potentially improve performance when deploying vSAN iSCSI volumes?

  • A. Utilize multiple iSCSI targets.
  • B. Change the erasure coding to RAID-6
  • C. Adjust the maximum iSCSI queue depth values
  • D. Configure multiple VMkernel ports
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Suggested Answer: C 🗳️
Today if you are noticing that your device queues are constantly bumping up to their maximum limits, it would be recommended to increase the Device/LUN depth and use SIOC to help mitigate any potential noisy neighbor problem.
References:https://blogs.vmware.com/vsphere/2012/07/troubleshooting-storage-performance-in-vsphere-part-5-storage-queues.html
by chr at Feb. 23, 2020, 7:51 p.m.

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chr
5 years, 4 months ago
C is not correct as the question states "Given a limited maximum queue depth". The correct answer is A. https://storagehub.vmware.com/t/iscsi-target-usage-guide/performance-best-practices/ "iSCSI Targets have a limited maximum queue depth and it is recommended to utilize more targets to increase performance."
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