System IPL volumes

The operating system views PPRC secondary volumes much like dual copy volumes, and permits only a limited set of I/O operations to these volumes. To issue the CRECOVER command during recovery, you must IPL a recovery system that is separate from all PPRC volumes. The CRECOVER command removes all PPRC volumes from secondary PPRC volume status.

Attention: Do not allow the data sets that you will require to initialize the recovery system to be PPRC secondary volumes. These volumes include SYSRES, PAGE, and SPOOL volumes, and volumes that are used to startup JES and TSO.

Alternatively, you can have a second set of SYSRES, PAGE, and SPOOL volumes that PPRC keeps current. You would then use a separate set of these volumes for recovery. When recovery is complete, you can use the separate set of SYSRES, PAGE, and SPOOL volumes to initialize the recovered system. Another option is to use ICKDSF Stand-Alone to restore the necessary system data sets.