crosscheck backup;
crosscheck copy;
delete expired backup;
delete expired copy;
CONFIGURE DEVICE TYPE DISK BACKUP TYPE TO BACKUPSET PARALLELISM 4;
CONFIGURE RETENTION POLICY TO REDUNDANCY 1;
RECOVER COPY OF DATABASE WITH TAG 'incr_update_backup';
BACKUP
  INCREMENTAL LEVEL 1 DURATION 30:00 PARTIAL
  FOR RECOVER OF COPY WITH TAG 'incr_update_backup'
  DATAFILECOPY FORMAT '/u01/app/backup2/%U.dbf'
  DATABASE FORMAT '/u01/app/backup2/INC1_BACKUP/%U.bkp' FILESPERSET 1;
RECOVER COPY OF DATABASE WITH TAG 'incr_update_backup';
delete obsolete;
SQL "alter system archive log current";
SQL "ALTER DATABASE BACKUP CONTROLFILE TO ''/u01/app/backup2/control01.ctl'' REUSE";
SQL "CREATE PFILE=''/u01/app/backup2/init$ORACLE_SID.ora'' FROM SPFILE";
list copy;
report need backup;
report need backup days 2 database;
host 'date';
exit $status

RMAN> recover datafile 7 block 17782181;

Starting recover at 03.08.2018 18:06:31
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=1774 device type=DISK
allocated channel: ORA_DISK_2
channel ORA_DISK_2: SID=1949 device type=DISK
allocated channel: ORA_DISK_3
channel ORA_DISK_3: SID=344 device type=DISK
allocated channel: ORA_DISK_4
channel ORA_DISK_4: SID=460 device type=DISK

channel ORA_DISK_1: restoring block(s) from datafile copy /u01/app/backup2/data_D-J34CDB_I-609507005_TS-JUST_DATA_FNO-7_o7t26od2.dbf
failover to previous backup

RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of recover command at 08/03/2018 18:06:34
RMAN-06026: some targets not found - aborting restore
RMAN-06023: no backup or copy of datafile 7 found to restore

RMAN>