ESXi host log bundles exported from the vCenter UI are downloading corrupted

Products

• VMware vCenter Server

Issue/Introduction

When generating system logs through vCenter for an ESXI host in a VSAN cluster the tasks take 30 or more minutes to complete, and users will notice the downloaded log bundles fail to extract using standard tools and methods.

Logs collecting using the vm-support command outlined in KB Collecting diagnostic information for VMware ESX/ESXi using vm-support command extract without issue.

 

Environment

VMware vSAN 8.0.x
VMware vSAN 7.0.x
VMware vSphere ESXi 8.0.x
VMware vSphere ESXi 7.0.x

Cause

We will want to check if the vSAN Health Service -> Performance service -> Network diagnostic mode has been enable on the cluster. It is suggested to enable this mode only as directed by VMware Support and it should not be left on.

Resolution

The steps to check and turn off the vSAN Health Service -> Performance service -> Network diagnostic mode are outlined in KB: https://knowledge.broadcom.com/external/article/326418/vsan-health-service-performance-service.html