Slowness issue on broker VMs

Products

• VMware vSphere ESX 7.x
• VMware vSphere ESX 8.x

Issue/Introduction

• Slow processing/performance issue is reported within guest OS of Broker VMs
  
  
• Broker VMs are critical components in security operations, responsible for tasks such as routing endpoints, collecting logs, and forwarding files for analysis. Due to the nature of these functions, these VMs inherently generate and process a significant volume of I/O operations.
  
  
• Other virtual machines residing on same datastore and ESXi host are not affected.
  
  
• ESXTOP monitoring on the host does not indicate any underlying latency issues on the LUNs. However, it reveals significant I/O, both reads and writes, originating from these broker VMs.

Environment

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

Resolution

Engage OS vendor for further investigation at the operating system layer.