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

The correct answer is C. Adjust the maximum iSCSI queue depth values. 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…

Deployment and Configuration

Question

Options

AUtilize multiple iSCSI targets.
BChange the erasure coding to RAID-6
CAdjust the maximum iSCSI queue depth values
DConfigure multiple VMkernel ports

How the community answered

(32 responses)

A
6% (2)
B
9% (3)
C
81% (26)
D
3% (1)

Explanation

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. https://blogs.vmware.com/vsphere/2012/07/troubleshooting-storage-performance-in-vsphere-part- 5-storage-queues.html

Topics

#vSAN iSCSI#queue depth#performance tuning#iSCSI target

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