High latency is observed on storage and virtual machines
search cancel

High latency is observed on storage and virtual machines

book

Article ID: 391804

calendar_today

Updated On:

Products

VMware vCenter Server VMware vSphere ESXi 8.0 VMware vSphere ESX 8.x VMware vSphere ESX 7.x VMware vSphere ESX 6.x

Issue/Introduction

  • VMs have poor performance with high latency.
  • Under esxtop Storage Device Panel, high DAVG, KAVG and GAVG is observed
  • Under esxtop Storage Device Panel (press 'u' to get storage devices), High number with QUED and 100% with %USD

Environment

VMware vSphere ESXi 7.x
VMware vSphere ESXi 8.x

Cause

Backend storage can not process the IO from ESX within the expected time.

Resolution

Consult storage vendor to improve the performance at the backend.

Additional Information