Unable to Discover Device After Upgrading SRM and SRA with an Error 'The RAID Manager Server's Key Fingerprint is Not Registered for the Specified Connection Address

Products

• VMware Live Recovery

Issue/Introduction

Symptoms :

• When perform discover devices received below error message  from Site recovery UI
  
  Operation Failed
  SRA command 'discoverDevices' failed. The RAID Manager server's key fingerprint is not registered  for the specified connection address.
  Check if the known_hosts file exists ,has the correct file permissions, and has the correct configuration.
  Operation ID:######-8e04-####-##-#####74
  
  
  
  
• SRM version upgraded 8.6 to 8.8 and 8.8  to 9.0.2 and issue started  
• SRA Adapter rescan gets successful. 
  
  Validation Steps: 
  
  
• Validate dr.log and found No active filters for server and discover devices task is getting error  
  
  Log path : /var/log/vmware/srm/dr.log 
  
  2025-05-07T05:15:51 [srm-reactive-thread-138] WARN  com.vmware.srm.client.infrastructure.tasks.TasksFacade  cc###b-b##3-####-####-#####  - Task 'ManagedObjectReference: ty
pe = DR-UI-MANAGED-TASK, value = 0####4-8##5-####b0fd-######, serverGuid = 00000000-0000-0000-0000-000000000000' completed with error.
(dr.storage.fault.CommandFailed) {
   faultCause = (dr.storage.fault.LocalizableAdapterFault) {
      faultCause = null,
      faultMessage = null,
      code = 7###-8c62-4b3d-#####-#######.1400,
      arg = null
   },
   faultMessage = null,
   commandName = discoverArrays

       
2025-05-07T05:15:51 [srm-reactive-thread-137] WARN  com.vmware.dr.ui.tools.reactive.impl.PromiseImpl 66583######-20ab-####-adf8-####### getStorageDevices - Function 'com.vmware.srm.client.infrastructure.http.AsyncController$$Lambda/0x00007f68acefbb58@2cbb7284' failed.
java.lang.IllegalStateException: The request associated with the AsyncContext has already completed processing.
        at org.apache.catalina.core.AsyncContextImpl.check(AsyncContextImpl.java:528)
        at org.apache.catalina.core.AsyncContextImpl.complete(AsyncContextImpl.java:91)
        at com.vmware.srm.client.infrastructure.http.AsyncController.lambda$start$2(AsyncController.java:141)
        at com.vmware.dr.ui.tools.reactive.impl.PromiseImpl$ApplyCompletion.complete(PromiseImpl.java:239)
        at com.vmware.dr.ui.tools.reactive.impl.PromiseImpl$Result.complete(PromiseImpl.java:41)
        at com.vmware.dr.ui.tools.reactive.impl.PromiseImpl$Completion.lambda$setResult$0(PromiseImpl.java:63):

Environment

VMware Live Recovery 9.x

Cause

• SRM/SRA relies on SSH connections to communicate with the CCI server for storage replication tasks. If the fingerprint is missing, the connection might fail due to host key verification issues
•  when using Site Recovery Manager (SRM) with an Storage Replication Adapter (SRA), the fingerprint information of the Command & Control Interface (CCI) server must be added to the known_hosts file to establish a secure SSH connection.
•  If that information is missing discover devices fail due to mismatch of fingerprint. 

 Cause Validation :

    Validate host key verification failed error. If the keys are invalid or compromised, this needs to regenerate them on the storage system

   Log path : /var/log/vmware/srm/dr.log 

• 2025-05-07T05:15:51.088Z error vmware-dr[01522] [SRM@6876 sub=SraCommand opID=6bdc815b-71b1-###-##-####-reloadAdapters:cde3:cde3:3##:2445:###:c114:###:bf59:###:##6b] Command discoverArrays's stderr
--> Someone could be eavesdropping on you right now (man-in-the-middle attack)!
--> It is also possible that a host key has just been changed.
--> The fingerprint for the ECDSA key sent by the remote host is
--> SHA256:######L6##8U#####/ynT#########.
--> Please contact your system administrator.
--> Add correct host key in /home/srm/.ssh/known_hosts to get rid of this message.
--> Offending RSA key in /home/srm/.ssh/known_hosts:1
--> ECDSA host key for 10.###.##6.## has changed and you have requested strict checking.
--> Host key verification failed.
-->
2025-05-07T05:15:51.088Z verbose vmware-dr[01522] [SRM@6876 sub=SraCommand opID=###-###-44b6-####-a56971626316-reloadAdapters:cde3:3##:2445:###:c114:###:bf59:###:##6b] discoverArrays responded with:
--> <?xml version="1.0" encoding="UTF-8" ?>
--> <Response xmlns="http://www.vmware.com/srm/sra/v2">
--> <Error code="1220"/>
--> </Response>

 

Resolution

Issue is not related to Site recovery Manager. Reach out to SRA Vendor and validate Docker Image ID associated with SRA because each SRA runs as a Docker container, and a Docker Image ID is assigned to it.