[VMC] vSAN Cluster disk space usage is approaching capacity

Products

• VMware Cloud on AWS

Issue/Introduction

• An alert stating that the vSAN Cluster disk space usage is approaching capacity. 
• Organization Owners and Members may receive an email or NGW stating the environment is reaching the vSAN capacity threshold. 

Environment

VMC on AWS

Cause

• When the storage capacity slack space for the cluster falls below 30%, automated notifications will be sent to the organization. 
• These notifications can be sent as an NGW and seen directly in the cloud console or through automated email notifications. 

Resolution

• If no action is taken, additional hosts will be added to the cluster if slack space falls below 20%.  
• This information is documented in the Service Level Agreement for VMware Clou on AWS. 
• Additional hosts can be added to the cluster manually if needed to meet the SLA thresholds. 
• Automated notifications will continue to be sent while at or under 30% slack space in the vSAN cluster. 

Note: The storage "High Threshold" of 80% cannot be modified and is included in the Elastic DRS Baseline. 

Additional Information

• Service Level Agreement: VMware Cloud on AWS
• VMware Cloud on AWS: vSAN Policies
• vSAN Storage in VMware Cloud on AWS
• VMware Cloud on AWS: Manage Elasticity in SDDC Clusters