: 1940
ORA-205 signalled during: ALTER DATABASE MOUNT..
看到有进程一直在唉用这个控制文件，先关闭下，看看别的进程
SQL> shutdown immedaite;
SP2-0717: illegal SHUTDOWN option
SQL> shutdown immediate;
ORA-01507: database not mounted
ORACLE instance shut down.
SQL>
SQL>
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@ht_121_90 dbs]$ ps -eaf|grep oracle
oracle 1918 1 0 20:31 ? 00:00:00 ora_pmon_powerdes
oracle 1920 1 0 20:31 ? 00:00:00 ora_vktm_powerdes
oracle 1924 1 0 20:31 ? 00:00:00 ora_gen0_powerdes
oracle 1926 1 0 20:31 ? 00:00:00 ora_diag_powerdes
oracle 1928 1 0 20:31 ? 00:00:00 ora_dbrm_powerdes
oracle 1930 1 0 20:31 ? 00:00:00 ora_psp0_powerdes
oracle 1932 1 0 20:31 ? 00:00:00 ora_dia0_powerdes
oracle 1934 1 0 20:31 ? 00:00:00 ora_mman_powerdes
oracle 1936 1 0 20:31 ? 00:00:00 ora_dbw0_powerdes
oracle 1938 1 0 20:31 ? 00:00:00 ora_lgwr_powerdes
oracle 1940 1 0 20:31 ? 00:00:00 ora_ckpt_powerdes
oracle 1942 1 1 20:31 ? 00:00:21 ora_smon_powerdes
oracle 1944 1 0 20:31 ? 00:00:00 ora_reco_powerdes
oracle 1946 1 0 20:31 ? 00:00:01 ora_mmon_powerdes
oracle 1948 1 0 20:31 ? 00:00:00 ora_mmnl_powerdes
oracle 1950 1 0 20:31 ? 00:00:00 ora_d000_powerdes
oracle 1952 1 0 20:31 ? 00:00:00 ora_s000_powerdes
oracle 1960 1 0 20:31 ? 00:00:00 ora_arc0_powerdes
oracle 1962 1 0 20:31 ? 00:00:00 ora_arc1_powerdes
oracle 1964 1 0 20:31 ? 00:00:00 ora_arc2_powerdes
oracle 1966 1 0 20:31 ? 00:00:00 ora_arc3_powerdes
oracle 1970 1 0 20:31 ? 00:00:00 ora_qmnc_powerdes
oracle 1984 1 0 20:31 ? 00:00:00 ora_cjq0_powerdes
oracle 1994 1 0 20:31 ? 00:00:00 ora_q000_powerdes
oracle 1998 1 0 20:31 ? 00:00:00 ora_q002_powerdes
oracle 2129 1 0 20:36 ? 00:00:00 ora_smco_powerdes
oracle 2287 1 0 20: