[Networker] Backup is failing due to not having enough devices to service requests

Product:

 

NetWorker Module for Databases and Applications 8.2,NetWorker Module for Databases and Applications 8.2.2,NetWorker 8.2.3,NetWorker 8.2.2

 

Issue:

 

 

Backup fails with symptoms below indicating device being busy and unable to complete backups   
   
    Error: 'ORA-19511: non RMAN, but media manager or vendor specific failure, error text: busy (0:5:2)'   
    Error: '_nwbsa_is_retryable_error received a retryable network error (Severity 0 Number -13) busy'   
    Error: 'nsrdasv: Failed to acquire user credentials for direct save nsrmmd auth: busy'   
    Error: 'save: Unable to setup direct save with server nsr_server.domain.com: busy.'   
    Error: 'lgto_auth for `nsrmmd' failed: busy'                                                           

 

 

Cause:

 

 

Problem is usually caused by when device is busy servicing other clients.                                                            

 

 

Resolution:

 

 

Problem can be resolved by following   
    1. Disable dynamic nsrmmds   
    NMC > Devices > Storage Nodes > select Properties of the storage node > uncheck 'Dynamic nsrmmds'     
   
    2. Increase target sessions of the device until problem is resolved   
   
    3. Make more volumes (devices) available for backup until problem is resolved   

 

 

참고링크 : https://community.emc.com/docs/DOC-66152