Recovering database copy from archived redologs

Hello,

I have a question on recovering a database copy.
Environmentt:
Oracle RDBMS 12.1.0.2 on exadata
Database is running in RAC mode on 4 nodes, exadata is connected to a ZFSSA via infiniband.
Because the database got too big, has a lot of daily changes and ZFSSA ran out of space,
I'd like to recover the database copy from the backups of archived redologs, using the until-clause.
Until now I used:
( allocate channel device type disk...;
  recover copy of database with tag 'DATABASE_COPY';
  backup as compressed backupset filesperset 1 incremental level 1 for recover of copy with tag 'DATABASE_COPY' database;
  ZFSSA-Snapshot )

The new approach would omit