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.