ASM实例内存修改

memory_max_target(它为静态参数，修改完成后需要重启实例)

memory_target(它为动态参数，不需要重启实例)

SQL> select name,issys_modifiable from v$parameter   where name='memory_max_target';

NAME                                                                             ISSYS_MOD

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memory_max_target                                                                FALSE

SQL> select name,issys_modifiable from v$parameter where name='memory_target';

NAME                                                                             ISSYS_MOD

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memory_target                                                                    IMMEDIATE