Hi all,

o/s: rhel 4
db : 10.2.0.3 RAC/Dataguard config using ASM

I have a situation where i need to move datafiles on my primary database from one ASM diskgroup to another due to a faulty LUN. However some of moves are not working as the copy of some datafiles is taking too long even the all the datafiles are roughly the same size (most have been successfully moved). As we also have a dataguard config, I was wondering if we could take a backup of the particualar datafile on the standby and restore it to the new diskgroup on LIVE? Is this possibe and if so i would appreciate the steps we need to take using RMAN?

Any advice would be appreciated,
Thanks,
Chucks