Explanation/Reference:
Explanation:
On Linux and UNIX systems, dba is the default operating system group designated as OSASM, OSOPER, and OSDBA for Oracle ASM. On Windows systems, ora_dba is the default name designated as OSASM, OSOPER, and OSDBA.
SQL*Plus commands, ASMCMD commands, and ASMCA use operating system authentication To connect locally as SYSASM to an Oracle ASM instance using operating system authentication with SQL*Plus, use the following statement:
sqlplus / AS SYSASM
OSASM group
This group is granted the SYSASM privilege, which provides full administrative privileges for the Oracle ASM instance.
You can specify the --privilege option to choose the type of connection, either SYSASM or SYSDBA. The default value is SYSASM and is used when administering an Oracle ASM instance. Connect as SYSDBA when connecting to the database instance.
For example:
$ asmcmd --privilege sysasm
usage: asmcmd [-V] [-v <errors|warnings|normal|info|debug>] [--privilege <sysasm|sysdba>] [-p]
[command]