oracle11g rac 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$parameter where name='memory_max_target'; NAME ISSYS_MOD -------------------------------------------------------------------------------- --------- memory_max_target FALSE SQL> select name,issys_modifiable from v$parameter where name='memory_target'; NAME ISSYS_MOD -------------------------------------------------------------------------------- --------- memory_target IMMEDIATE 查看ASM内存，并修改memory_max_target，由512M变为4G [grid@db1 ~]$ sqlplus / as sysasm SQL*Plus: Release 11.2.0.3.0 Production on Wed Sep 25 14:44:59 2013 Copyright (c) 1982, 2011, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Real Application Clusters and Automatic Storage Management options SQL> show parameter mem; NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ memory_max_target big integer 512M memory_target big integer 512M SQL> SQL> SQL> alter system set memory_max_target=4G scope=spfile; System altered. SQL> exit Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Real Application Clusters and Automatic Storage Management options 查看crs状态（因为测试数据库实例与监听没有启动，如果生产环境中，建议一个个去停，保证业务正常运行） [grid@db1 ~]$ crsctl stat res -t -------------------------------------------------------------------------------- NAME TARGET STATE SERVER STATE_DETAILS -------------------------------------------------------------------------------- Local Resources -------------------------------------------------------------------------------- ora.DATA.dg ONLINE ONLINE db1 ONLINE ONLINE db2ora.FRA.dg ONLINE ONLINE db1 ONLINE ONLINE db2 ora.LISTENER.lsnr OFFLINE OFFLINE db1 OFFLINE OFFLINE db2 ora.OCR.dg ONLINE ONLINE db1 ONLINE ONLINE db2 ora.asm ONLINE ONLINE db1 Started ONLINE ONLINE db2 Started ora.gsd OFFLINE OFFLINE db1 OFFLINE OFFLINE db2 ora.net1.network ONLINE ONLINE db1 ONLINE ONLINE db2 ora.ons ONLINE ONLINE db1 ONLINE ONLINE db2 -------------------------------------------------------------------------------- Cluster Resources -------------------------------------------------------------------------------- ora.LISTENER_SCAN1.lsnr 1 ONLINE ONLINE db2 ora.cvu 1 ONLINE ONLINE db1 ora.db1.vip 1 ONLINE ONLINE db1 ora.db2.vip 1 ONLINE ONLINE db2 ora.dmzdb.db 1 OFFLINE OFFLINE Instance Shutdown 2 OFFLINE OFFLINE Instance Shutdown ora.oc4j 1 ONLINE ONLINE db1 ora.scan1.vip 1 ONLINE ONLINE db2 [grid@db1 ~]$ 停crs 全部节点 注：修改asm实例内存，需要重启asm实例 测试了下重启实例,需要停diskgroup相对重启crs要麻烦 故选择重启crs，生产环境可以一个个实例重启，保证业务能够运行 本例为了测试方便去，全部停止，全部启动 [root@db1 ~]# crsctl stop cluster -all CRS-2673: Attempting to stop 'ora.crsd' on 'db1' CRS-2673: Attempting to stop 'ora.crsd' on 'db2' CRS-2790: Starting shutdown of Cluster Ready Services-managed resources on 'db1' CRS-2673: Attempting to stop 'ora.db1.vip' on 'db1' CRS-2673: Attempting to stop 'ora.FRA.dg' on 'db1' CRS-2673: At