SRM, SRA: TestFailover Fails Error: Failed to create snapshot of replica Test_CG

Summary: TestFailover on Storage Resource Manager (SRM) fails. Storage Replication Adapter (SRA) command 'testFailoverStart' failed for Consistency group with error - "Failed to create snapshot of replica consistency group Test_CG. SRA command 'testFailoverStart' failed for consistency group 'Test_CG' Invalid configuration found in the options file Please check EmcSrdfSra logs for more information on the error." ...

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Symptoms

Error in EmcSrdfSra.log: 
SraDevicePairings::GetCopyInfo ] [WARNING]: A valid CopyInfo block could not be found in the options file that has Symm [0002975xxxxx]
TestFailoverStopCommand::AutoTargetDeviceProvisioning] AutoTargetDevice feature is Disabled
TestFailoverStopCommand::RunOnGroup] [ERROR]: Invalid CopyInfo type specified in TestFailoverConfig file. Exiting with failure

[20230602132024    18   304 FileExists@Utilities.cpp        ] [WARNING]: Filename:/srm/sra/conf/EmcSrdfSraTestFailoverConfig.xml
[20230602132024    18   112 main@EmcSrdfSra.cpp             ] [WARNING]: Cannot find Sra Test Failover Device Pairings configuration file. 

 

Cause

To perform TestFailover, it is important to have a source and target device. The source device is the R2 device on the recovery site. Target is the snapshot target device. 
Here, neither EmcSrdfSraGlobalOptions.xml nor EmcSrdfSraTestFailoverConfig.xml was updated.

Resolution

Steps to update EmcSrdfSraGlobalOptions.xml:
Modify the below parameters- 
AutoTargetDevice = Yes
AutoTargetDeviceReuse = No
TerminateCopySession = Yes 
NOTE: The value of Auto Target Device Reuse option should be opposite of TerminateCopySessions as a best practice. 

OR

Update EmcSrdfSraTestFailoverConfig.xml. 
Example of how to update EmcSrdfSraTestFailoverConfig.xml: 
<CopyInfo>
<ArrayId>000190300186</ArrayId>
<CopyType>SNAPVX</CopyType>
<CopyMode>NOCOPY</CopyMode>
<SavePoolName></SavePoolName>
<DeviceList>
<DevicePair>
<Source>4D8</Source>
<Target>4DE</Target>
</DevicePair>
<DevicePair>
<Source>4D9</Source>
<Target>4DF</Target>
</DevicePair>
</DeviceList>
</CopyInfo>

Additional Information

Dell EMC SRDF Adapter provides the following options files under the folder ProgramData\EMC\EmcSrdfSra\Config:
  • EmcSrdfSraGlobalOptions.xml
  • EmcSrdfSraTestFailoverConfig.xml
  • EmcSrdfSraProtectionSiteGoldCopyConfig.xml
  • EmcSrdfSraRecoverySiteGoldCopyConfig.xml
  • EmcSrdfSraDeviceMaskingControl.xml

In latest version it can be collected by launching SRM Appliance Management using <SRM_Appliance_FQDN>:5480 > Download configuration archive -
  1. Log in to the VMware SRM Appliance Management Interface.
  2. Go to Storage Replication Adapters > Dell EMC SRDF Adapter.
  3. Select Menu (three dots) > Download Configuration Archive.

Download Configuration Archive

4) The downloaded file has the filename format <buildname>_<buildTAG>.tar.gz.

Steps to follow to edit the configuration archive in Windows:
  1. Right-click the downloaded <buildname>_<buildTAG>.tar.gz. Open the file using 7zip. 
  2. Select the file to be modified and right click to Edit. 
Modify the required file EmcSrdfSraGlobalOptions.xml
     3. Make the changes on the file and save it. 
     4. Click Yes on the below prompts-
Select Yes to update the appropriate xml file
5. Then the sradocker.tar file must be saved.

Click Yes to update the sradocker.tar

       5. Upload configuration archive-
Upload configuration archive
      6. Reload-
Dell EMC SRDF Adapter Reload option in drop down menu
 
 
 

Produse afectate

Storage Replication Adapter (SRA), Solutions Enabler
Proprietăți articol
Article Number: 000228483
Article Type: Solution
Ultima modificare: 20 Jan 2025
Version:  2
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