Using Datacom QUIESCE command

Products

• Datacom/DB
• Datacom
• Datacom/AD

Issue/Introduction

The QUIESCE command enables the operator to "pause" the entire Datacom Multi-User Facility (MUF) region at either a request or a logical transaction boundary. Sometimes this is needed for maintenance that has to be performed against either the MUF or one or more of its databases but often it is used so a more complete backup of the data in the databases can be obtained without losing the availability of the entire DBMS or of the attached applications.

Environment

Component : CA Datacom/DB

Component : CA Datacom/AD

Version 15.1 

Resolution

This is a sample of the order of operator actions as outlined in the documentation.

Example of command with expected messages:                                    
                                    
  a) Start with a QUIESCE TXN:
       /F mufjob,QUIESCE TXN                                                     
           DB01311I - QUIESCE TXN                                             
           DB02901I - MUF QUIESCE TXN STARTING                                
           DB02903I - MUF QUIESCE TXN FLUSHING PIPELINE                       
           DB02904I - MUF QUIESCE TXN ENDED, IN EFFECT                        

  b) If this does not go into effect in a timely manner, issue:        
       /F mufjob,QUIESCE OFF                                                   
           DB01311I - QUIESCE OFF                                             
           DB02912I - MUF QUIESCE OFF ENDED, TXN WAS IN PROCESS               

       /F mufjob,QUIESCE REQ                                                   
           DB01311I - QUIESCE REQ                                             
           DB02901I - MUF QUIESCE REQ STARTING                                
           DB02903I - MUF QUIESCE REQ FLUSHING PIPELINE                       
           DB02904I - MUF QUIESCE REQ ENDED, IN EFFECT                        

  c) After receiving:                                                          
           DB02904I MUF QUIESCE xxx ENDED, IN EFFECT,                         
           the operator or console automation process should proceed to take action with MUF that is paused for maintenance activity. 

  d) /F mufjob,QUIESCE OFF to re-activate MUF processing:                     
           DB01311I - QUIESCE OFF                                            
           DB02910I - MUF QUIESCE OFF ENDED, REQ WAS IN EFFECT 

Additional Information

For more information about this command, please review the appropriate Datacom documentation here .