Shared pool problem

Hi Gurus,

Oracle Version: 11.2.0.1(2-node RAC DB)
Operating system : CentOs (64-bit)

While i am trying to configure single instance standby database on 32-bit OS and from my primary RAC db on 64-bit OS and when trying to duplicate target db i got below. error.

RMAN> duplicate target database <font color="navy"><b>for</b></font> standby from active database;
 
Starting Duplicate Db at 21-JUL-11
using target database control file instead of recovery catalog
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: SID=63 device type=DISK

contents of Memory Script:
<font color="navy">{</font>
   backup as copy reuse
   targetfile  <font color="navy">'/u01/app/oracle/product/11.2.0/db_1/dbs/orapwqfundrac1'</font> auxiliary format
 <font color="navy">'/u01/app/oracle/product/11.2.0/db_1//dbs/orapwpoorna'</font>   ;
<font color="navy">}</font>