If you are restoring a database in rman and you lose connection to your session due to a network blip, you can resume the restore after the network connection is reestablished.
For example, the restore is being run as follows:
[prodsrvr4-RACNODE4] rman target=/ Recovery Manager: Release 11.2.0.4.0 - Production on Wed Feb 14 10:01:36 2018 Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved. connected to target database: PRODDB (DBID=1057984567, not open) RMAN> restore database; channel ORA_DISK_1: starting datafile backup set restore channel ORA_DISK_1: specifying datafile(s) to restore from backup set channel ORA_DISK_1: restoring datafile 00120 to +DG_PRD2/proddb/customer_52.dbf channel ORA_DISK_1: reading from backup piece /dbbackup06/PRODDB/backup/PRODDB201802137lsr3u55_1_1.bus
and you lose network connectivity, you can log back on and restart (i.e. resume) as follows:
[prodsrvr4-RACNODE4] rman target=/ Recovery Manager: Release 11.2.0.4.0 - Production on Wed Feb 14 10:01:36 2018 Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved. connected to target database: PRODDB (DBID=1057984567, not open) RMAN> restore database ; Starting restore at 14-FEB-18 using target database control file instead of recovery catalog allocated channel: ORA_DISK_1 channel ORA_DISK_1: SID=177 instance=RACNODE4 device type=DISK skipping datafile 1; already restored to file +DG_PRD2/proddb/system01.dbf skipping datafile 140; already restored to file +DG_PRD1/proddb/order_65.dbf . . . channel ORA_DISK_1: starting datafile backup set restore channel ORA_DISK_1: specifying datafile(s) to restore from backup set channel ORA_DISK_1: restoring datafile 00069 to +DG_PRD2/proddb/customer_29.dbf channel ORA_DISK_1: restoring datafile 00203 to +DG_PRD2/proddb/undotbs102.dbf channel ORA_DISK_1: reading from backup piece /dbbackup05/PRODDB/backup/PRODDB201802136bsr3ph4_1_1.bus channel ORA_DISK_1: piece handle=/dbbackup05/PRODDB/backup/PRODDB201802136bsr3ph4_1_1.bus tag=HOTBKUPFULL channel ORA_DISK_1: restored backup piece 1 channel ORA_DISK_1: restore complete, elapsed time: 00:15:55
