Data Domain: ATOS DDVE Unable to communicate with the cloud provider metadata server

An environment alert may be posted, and the file system is down. The cloud provider metadata server is not reachable:

Event Id:       EVT-ENVIRONMENT-00063
Event Message:  Unable to communicate with the cloud provider metadata server.
Additional Information: Cause=Network configuration

Event Description:

 This virtual DD system is not able to connect with the metadata server of the cloud provider. 
 Prolonged loss of connectivity with the metadata server will cause the filesystem to go down.

Recommended Action:

 Check the network configuration of the system and confirm that the primary network interface 
 and DHCP service are active. 
 Also, validate that there are no firewall rules that may be blocking access to the 
 metadata server.

 

------------------------------------------------                                                                                             
Message                        Unsupported virtual hardware configuration.  
p0-257   Wed Jul 19    CRITICAL   Environment Component=Configuration EVT-ENVIRONMENT-00040: Unsupported virtual hardware configuration.               
Post Additional Information    Cause=instance type - Fail to retrieve the instance type information from metadata server!                                                            
Clear Additional Information                                                                                                              
Event Id                       EVT-ENVIRONMENT-00040                                                                                      
Event Name                     UnsupportedHardwareConfig                                                                                  
Description                    Unsupported virtual machine hardware configuration was detected.                                           
                               This configuration may cause unexpected behavior.                                                          
Action                         Fix the hardware configuration to resolve the problem.                                                     
                               If problem persists, restart the system. 
-------------------------------------------------

-------------------------------------------------  
Alert Id                 	   p0-257
Post Time                      Tue Jul 22 13:55:35 2025
Severity                       CRITICAL
Class                          Environment
Object                         Component=Configuration
Message                        Unsupported virtual hardware configuration.
Additional Information         Cause=instance type - Fail to retrieve the instance type information from metadata server!
-------------------------------------------------

A cloud provider such as GCP (but also potentially applicable to others) can use a "metadata server" transparently, associated to cloud storage for active tier data. If this metadata server cannot be accessed for a long time, the DDVE file system may be disabled for safety.

The DDVE file system may be unable to contact the metadata server anymore is because of changes made to the DDVE DNS or interface (DHCP) settings.

If data storage is unavailable due to earlier issues with cloud storage communication, address the issue causing the access to the metadata server to fail. Trying to "filesys enable" fails.

Google Cloud Platform (GCP)

For example, for Google Cloud Platform (GCP), the metadata server is hostname "metadata.google.internal" with (internal) IP 169.254.169.254. Any VM in GCP knows how to resolve and reach the metadata server if at least one interface has been configured through DHCP. If, for example, a DDVE was configured that way and later the interface was given a static IP (no DHCP). The DDVE cannot resolve the metadata server IP address. Add a static name to the IP host mapping in the DDVE for the GCP metadata server to resolve the condition.

Microsoft Azure

Instance Metadata Service (IMDS) requests must be sent using the VM's primary NIC and primary IP. Interface ethV0 must be used for metadata server communication.
Azure Instance Metadata Service for virtual machines - Azure Virtual Machines | Microsoft Learn 

Add the route back. Replace 127.1.1.1 with the correct gateway IP for ethV0.

net route add host 169.254.169.254 gw 127.1.1.1 dev ethV0