> (c) Perform a bcv copy from db1_dg to db2_dg > (d)At this point, the headers of the files/devices that make up > db2_dg will have information about db1_dg ... > How can I accomplish this using rename command > renamedg phase=both dgname=db1_dg newdgname=db2_dg > If I use this, I am afraid that I will wipe out the source. Interesting question. I've never done it. But I suppose if you pass the asm_diskstring option to renamedg, you can specifically point to the disks comprising the *target* diskgroup only. It may be a good idea to open an SR with Oracle. Yong Huang -- //www.freelists.org/webpage/oracle-l