Alarm triggered in vCenter server " Disk is no longer participating in the VSAN disk group"

Products

• VMware vSAN

Issue/Introduction

Symptoms:

• An alarm is triggered in the vCenter server for a "disk no longer participating in the VSAN disk group" under vSAN Cluster --> Summary tab.

 

• The Disk group shows in unhealthy state in vCenter Web Client under Cluster --> Configure --> vSAN --> Disk Management with a disk reported absent.

• .Deduplication & Compression feature is enabled on the affected Disk Group.

 

 

Environment

VMware vSAN 7.x

VMware vSAN 8.x

Cause

This issue occurs due to one or all of these reasons:

• A physical Disk has failed
• The physical disk has been removed from server, before removing the disk from vSAN disk group

 

Resolution

Please contact  the hardware vendor to replace the faulty disk.

For more information on absent disk troubleshooting refer to this link : The vSAN disk appears as Absent in vSAN Disk Management

 

Additional Information

Troubleshooting vSAN OSA disk issues