The identity of an Oracle ASM user can be changed from one operating system user to another operating system user.

It enables end users to change the identity of an Oracle ASM user without having to delete and re-create the user, which requires dropping all the files a user owns. This feature improves the manageability of Oracle ASM users and the files they own. The SQL Statements ALTER, DISKGROUP, REPLACE, USER, and a new ASMCMD command (rpusr) have been added to support user replacement in a disk group.