To start and stop Oracle Automatic Storage Management, in addition to using SQL*Plus, you can use the srvctl utility.

srvctl start asm

srvctl stop asm

To manage Oracle Automatic Storage Management, you can use the following tools:

• asmcmd: This command-line tool lets you manage Oracle Automatic Storage Management disk group files and directories.

• asmtool: This command-line tool is required to stamp the disks to create or modify disk groups later on after the database installation.

• Oracle Automatic Storage Management Configuration Assistant: Oracle Automatic Storage Management Configuration Assistant (ASMCA) is an interactive utility that enables you to create an Oracle Automatic Storage Management instance or upgrade existing Oracle Automatic Storage Management instances. It also enables you to create and configure disk groups, Oracle Automatic Storage Management volumes and Oracle Automatic Storage Management File Systems (ASMFS).

• Oracle Enterprise Manager Cloud Control: If you have Oracle Enterprise Manager installed, you can use Cloud Control to manage Oracle ASM functions, such as migrating an existing database to Oracle ASM, checking the status of the Oracle ASM instance, checking the performance of the Oracle ASM disk groups, and creating or dropping Oracle ASM disk groups.

• Oracle Enterprise Manager Database Express 12c: This utility enables you to perform basic administrative tasks such as user, performance, memory, and space management.

• SQL*Plus: You can use Oracle Automatic Storage Management-specific commands from this tool. To connect to the Oracle Automatic Storage Management instance, you use the same methods that you use to connect to an Oracle Database instance.