vSAN Object Health is Unhealthy

Products

• VMware vSAN 7.x
• VMware vSAN 8.x

Issue/Introduction

A Distributed Virtual Switch(DVS) failed and had to be replaced. 

After replacing the vSAN Cluster Skyline Health Score has at 56% Healthy score. 

 

The Skyline Health Alarm reports that 9 Virtual objects showing inaccessible. These objects a causing the alarm.

Environment

vSAN 7.0x

vSAN 8.0x

Cause

Without logs from the DVS failure events we cannot absolutely say why the inaccessible objects existed, and cannot explain here why the objects were not cleaned up when broken DVS was removed from vCenter.

Based on VCF Support expertise/experience with inaccessible objects, that the unassociated objects did not exist before the failure of the DVS, that the objects only appeared after the new DVS was implemented.

 

The inaccessible objects were identified as "config status" objects from the broken DVS.

 

"uuid": "########-####-####-####-############",
   "owner": "########-####-####-####-############",
   "health": "Healthy",
   "revision": "4",
   "type": "CONFIG_STATUS",
   "flag": "2",
   "minHostVersion": "3",
   "md5sum": "8aefdd6dbf7e######8c7#####e4",
   "valueLen": "280",
   "content": "{\"state\": 45, \"CSN\": 10945, \"SCSN\": 10947, \"highestDiskVersion\": 15, \"objectVersion\": 15, \"objectClass\": 3, \"muxGroup\": 73381561997718996, \"addressSpace\": 4294967296}",
   "errorStr": "(null)"

Resolution

Using vCenter > CLI >  RVC (See attachment for the RVC use guide on the reference RVC KB )

RVC tool allowed VCF Support to identify the inaccessible objects.

 

 

Once the 9 objects were identified, with the help of VCF Support Engineer, Support was able to remove the objects with specialized support tool.

Additional Information

• Unassociated objects can exist for a variety of causes. 
• In this instance a DVS failure occurred. The DVS was replaced. Then when the vSAN Skyline Health test was performed a score of 56% was present.
• If administrators are able to identify and remove the unassociated objects with vCenter UI datastore browser please use the UI as the standard. However if the inaccessible objects are not deleting or concerns exist about the objects type and what the object might affect when it is deleted. Please contact VCF support.