SBT_TAPE and PARALLELISM

Hi,

can I improve my script RMAN  DUPLICATE DATABASE

using parallelism ?

The parameter : allocate auxiliary channel auxch1 type 'sbt_tape'  has been set by our IT provider

My script :

SET ECHO ON;

RUN {

allocate auxiliary channel auxch1 type 'sbt_tape' PARMS="SBT_LIBRARY=/calypso/calypso/Base/libobk.so,BLKSIZE=262144,ENV=(CV_mmsApiVsn=2,CV_channelPar=ch1)" TRACE 0 ;

set newname for TEMPFILE 1 to "/xxxxxxxxxxxxxxxxxxxxx";

set newname for TEMPFILE 2 to "/xxxxxxxxxxxxxxxxxxxxxx";

set newname for TEMPFILE 3 to "xxxxxxxxxxxxxxxxxxxxx";

set newname for datafile 4 to "xxxxxxxxxxxxx";

set newname for datafile 3 to "xxxxxxxxxxxxxxxxx";

set newname for datafile 2 to "xxxxxxxxxxxxxxx";

set newname for datafile 1 to "xxxxxxxxxxxx";

set newname for datafile 5 to "xxxxxxxxxxxxxxxxxxx";