NCM-MCI: Nutanix Certified Master - Multicloud InfrastructureDemo

By Nutanix · Question Mode

QuestionQ44

Analyze and Optimize Network Performance

An administrator is deploying an application with Nutanix Volumes. After configuring the volume group and connecting the guest’s iSCSI initiator to it, they begin performance testing. The administrator finds that performance on the virtual disk attached to the iSCSI initiator is far lower than that of a virtual disk connected directly to the VM.

Which situation is causing this condition?

  • A The VM's iSCSI traffic is being routed to the data services IP subnet
  • B The performance test is generating small block random 10
  • C The duster data services IP address is a bottleneck, shared with other iSCSI traffic
  • D Data Locality ensures that VM attached disks are always faster than iSCSI volumes
Explanation

Nutanix recommends placing hosts that access Nutanix Volumes on the same subnet as the iSCSI data services IP and avoiding routing between client initiators and CVM targets. Routed iSCSI traffic adds network-path latency and overhead, which can make an iSCSI-attached disk perform substantially worse than a directly attached VM disk.

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