Performing Parallel Recoveries

Though you can find the parallel support parameters on the recovery policy display, you probably do not want to select the parallel option from this display. This is because the recovery policy sets the defaults for all of your recoveries, and you cannot perform all of your recoveries with parallel support. Therefore, the best way for you to use the parallel option is to take the following steps:

1. Set the Option field on the STRRCYBRM command to *CTLGRP.
2. Set the Action field to *RESTORE.
3. Indicate the control group you want BRMS to process with parallel support in the Control group field.
4. Press Enter to prompt the Select Recovery Items display.
5. Select the items you want BRMS to recover and press F9 to prompt the Restore Command Defaults display.

                           Restore Command Defaults                                
                                                                                   
   Type information, press Enter.                                                  
                                                                                   
    Device  . . . . . . . . . . . . . . *MEDCLS     Name, *MEDCLS                  
                                                                                   
                                                                                   
                                                                                   
    Parallel device resources:                                                     
      Minimum resources. . . . . . . .  *SAV        1-32, *NONE, *AVAIL            
      Maximum resources. . . . . . . .              1-32, *AVAIL, *MIN             
    End of tape option  . . . . . . . . *REWIND     *REWIND, *LEAVE, *UNLOAD       
    Option  . . . . . . . . . . . . . . *ALL        *ALL, *NEW, *OLD, *FREE        
    Data base member option . . . . . . *ALL        *MATCH, *ALL, *NEW, *OLD       
    Restore spooled file data . . . . . *NONE       *NONE, *NEW                    
    Allow object differences  . . . . . *NONE                                      
                                                    *NONE, *ALL, *AUTL,            
                                                    *FILELVL, *OWNER, *PGP         
                                                                                   
                                                                                   
                                                                           More... 
    F12=Cancel                                                                     

6. Use the Device fields to identify specific devices you want to use.
7. Specify the maximum and minimum devices that you want to allocate to the parallel job at the Parallel device resources parameter. The recommended value for this parameter is *SAV. This value instructs BRMS to use the same number of resources for the parallel restore as it used to perform parallel save. You can specify *SAV at the Minimum resources parameter. In addition to *SAV, the possible values are:
   • Minimum device resources can be *AVAIL (use any available devices), or any number between 1 and 32.
   • Maximum device resources can be *MIN (the same value specified in the Minimum device resource field), *AVAIL, or any number between 1 and 32.
8. After you review and change the parameters as needed, press Enter twice to process the command.