RAC下修改process参数
修改process参数的大小，重启单个节点 另外的一个节点的参数不会变 重启后修改
也就是说如果是在RAC环境下修改process参数 需要重启所有的节点 才能生效。
节点1：
[oracle@ldbrac1 ~]$ sqlplus / as sysdba
SQL*Plus: Release 10.2.0.1.0 - Production on Tue Sep 13 15:02:01 2011
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, Real Application Clusters, OLAP and Data Mining options
SQL>
SQL>
SQL> show parameter language
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
nls_date_language string
nls_language string AMERICAN
SQL>
SQL> show parameter process
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
aq_tm_processes integer 0
db_writer_processes integer 1
gcs_server_processes integer 2
job_queue_processes integer 10
log_archive_max_processes integer 2
processes integer 150
SQL>
SQL> select count(*) from v$process;
COUNT(*)
----------
39
SQL> select count(*) from v$session;
COUNT(*)
----------
33
SQL> alter system set processes=200 scope=spfile;
System altered.
SQL> show parameter process
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
aq_tm_processes integer 0
db_writer_processes integer 1
gcs_server_processes integer 2
job_queue_processes integer 10
log_archive_max_processes integer 2
processes integer 150
SQL> create pfile from spfile;
File created.
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup
ORACLE instance started.
Total System Global Area 922746880 bytes
Fixed Size 1222624 bytes
Variable Size 180357152 bytes
Database Buffers 734003200 bytes
Redo Buffers 7163904 bytes
Database mounted.
Database opened.
SQL> show parameter process
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
aq_tm_processes integer 0
db_writer_processes integer 1
gcs_server_processes integer 2
job_queue_processes integer 10
log_archive_max_processes integer 2
processes integer 200
SQL>
节点2：
[oracle@ldbrac2 ~]$ sqlplus / as sysdba
SQL*Plus: Release 10.2.0.1.0 - Production on Tue Sep 13 15:13:49 2011
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, Real Application Clusters, OLAP and Data Mining options
SQL>
SQL>
SQL> show parameter process
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
aq_tm_processes integer 0
db_writer_processes integer 1
gcs_server_processes integer 2
job_queue_processes integer 10
log_archive_max_processes integer 2
processes integer 150
SQL>
SQL> show parameter process
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
aq_tm_processes integer 0
db_writer_processes integer 1
gcs_server_processes integer 2
job_queue_processes integer 10
log_archive_max_processes integer 2
processes integer 150
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL>
SQL>
SQL> startup
ORACLE instance started.
Total System Global Area 922746880 bytes
Fixed Size 1222624 bytes
Variable Size 239077408 bytes
Database Buffers 675282944 bytes
Redo Buffers 7163904 bytes
Database mounted.
Database opened.
SQL> show parameter process
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
aq_tm_processes integer 0
db_writer_processes integer 1
gcs_server_processes integer 2
job_queue_processes integer 10
log_archive_max_processes integer 2
processes integer 200
SQL>