"Internal Server Error" error seen when deploying vApps using an SDRS backed storage policy.

Products

• VMware Cloud Director

Issue/Introduction

Symptoms:

• Deploying vApps from a template with a specific storage policy return the following error in the UI: 

[ <TASK_ID>] Internal Server Error - Internal Server Error - com.vmware.vim.binding.impl.vim.storageDrs.StorageMigrationActionImpl cannot be cast to com.vmware.vim.binding.vim.storageDrs.StoragePlacementAction

• In the /opt/vmware/vcloud-director/logs/vcloud-container-debug.log , the stacktrace contains lines such as: 
• StorageMigrationActionImpl cannot be cast to com.vmware.vim.binding.vim.storageDrs.StoragePlacementAction
• com.vmware.vcloud.fabric.storage.placement.sdrs.impl.SdrsPlacementManagerImpl.populateHomeAndDiskRecommendations(SdrsPlacementManagerImpl.java:657)
• com.vmware.vcloud.fabric.storage.placement.sdrs.impl.SdrsPlacementManagerImpl.processSdrsResults(SdrsPlacementManagerImpl.java:1034)
• com.vmware.vcloud.fabric.storage.placement.sdrs.impl.SdrsPlacementManagerImpl.selectDatastoreInStoragePod(SdrsPlacementManagerImpl.java:207)

Environment

VMware Cloud Director for Service Provider 9.x

Cause

This issue occurs because vCenter Server is sending StorageMigrationActions along with StoragePlacementActions to vCloud Director as part of the Storage DRS recommendations which will be used during the VM placement process.

Resolution

This is a known issue affecting all vCloud Director for Service Providers 9.x versions.

This issue is resolved in VMware Cloud Director 10.x and above, all of which are available at VMware Downloads



Workaround:
To workaround the issue, disable Storage DRS as per KB 2032910

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