oracle11g連不上em,配置oracle11g EM db control

oracle从10g以来一直大力推荐dba通过EM来进行管理，不管个人的喜好如何，都不能否认EM还是具有很强的易用性的。

前阵子装好了11g后，发现oracle11g文档很多快速管理指南的内容都是通过EM来进行的，但我在文档上并没找到EM的安装说明，于是试着通过10g的说明来对其进行配置。

从安装软件上看，我并没找到gridcontrol部分，不知道是不是还没有推出，下面简单描述一下db control的配置过程以及遇到的几个问题。

跟10g的方法相仿，oracle11g也可以通过EMCA来配置dbcontrol(在装数据库时候用dbca可以同时创建em)

登陆oracle用户，执行emca-h命令后可以看到emca的各种配置参数及选项，具体参数的说明可以参考10g中的说明(可在Introduction toEnterprise Manager Advanced Configuration中找到)。执行emca -configdbcontrol db -reposcreate，按提示输入一些配置后，创建过程开始，可惜建到一半后，SYSAUX空间不足，报错退出了。看来自10G以后SYSAUX空间的要求越来越大了，这里要注意，不光是sysaux表空间，system表空间也要有足够的空闲。

扩展表空间后执行emca -config dbcontrol db -reposrecreate准备重新开始创建，结果刚一开始就报错退出了，竟然是报没有tns监听，lsnrctlstatus检查监听是启的，用配置的tnsnames连接数据库也能连上，想了很久后怀疑跟监听没有采用动态注册方式有关，可按道理在一些缺省条件达成的情况的下，动态注册是自动生效的。lsnrctlstatus命令再看了一下，动态注册果然没有启动，没办法只能试试强制指定了，tnsnames里增加

listener1=   (DESCRIPTION=     (ADDRESS=(PROTOCOL=tcp)(HOST=oratest)(PORT=1521))    )

并指定local_listener＝listener1后，动态注册立即生效了。至于为啥，我不知道，新特性还是bug？以后再说吧(10G没怎么玩过，不知道有没这个问题)

重新执行emca -config dbcontrol db -reposrecreate，成功，开始drop以前的配置了，之后一切顺利，执行过程及结果消息如下：

$ emca -config dbcontrol db -repos recreate

STARTED EMCA at Aug 29, 2007 8:40:57 AMEM Configuration Assistant, Version 11.1.0.5.0 ProductionCopyright (c) 2003, 2005, Oracle.  All rightsreserved.

Enter the following information:Database SID: test11gListener port number: 1521Password for SYS user: Password for SYSMAN user: Email address for notifications(optional):Outgoing Mail (SMTP) server for notifications (optional):-----------------------------------------------------------------

You have specified the following settings

Database ORACLE_HOME ................/oracle11g/product/11g

Local hostname ................ oratestListener port number ................ 1521Database SID ................ test11gEmail address for notifications ...............Outgoing Mail (SMTP) server for notifications ...............

-----------------------------------------------------------------Do you wish to continue? [yes(Y)/no(N)]: YAug 29, 2007 8:41:20 AM oracle.sysman.emcp.EMConfig performINFO: This operation is being logged at/oracle11g/cfgtoollogs/emca/test11g/emca_2007_08_29_08_40_56.log.Aug 29, 2007 8:41:30 AM oracle.sysman.emcp.EMReposConfiginvokeINFO: Dropping the EM repository (this may take a while) ...Aug 29, 2007 8:50:26 AM oracle.sysman.emcp.EMReposConfiginvokeINFO: Repository successfully droppedAug 29, 2007 8:50:28 AM oracle.sysman.emcp.EMReposConfigcreateRepositoryINFO: Creating the EM repository (this may take a while) ...Aug 29, 2007 9:16:21 AM oracle.sysman.emcp.EMReposConfiginvokeINFO: Repository successfully createdAug 29, 2007 9:17:05 AM oracle.sysman.emcp.EMReposConfiguploadConfigDataToRepositoryINFO: Uploading configuration data to EM repository (this may takea while) ...Aug 29, 2007 9:20:57 AM oracle.sysman.emcp.EMReposConfiginvokeINFO: Uploaded configuration data successfullyAug 29, 2007 9:21:22 AM oracle.sysman.emcp.util.DBControlUtilconfigureSoftwareLibINFO: Software library configured successfully.Aug 29, 2007 9:21:22 AM oracle.sysman.emcp.EMDBPostConfigconfigureSoftwareLibraryINFO: Deploying Provisioning archives ...Aug 29, 2007 9:26:27 AM oracle.sysman.emcp.EMDBPostConfigconfigureSoftwareLibraryINFO: Provisioning archives deployed successfully.Aug 29, 2007 9:26:27 AM oracle.sysman.emcp.util.DBControlUtilsecureDBConsoleINFO: Securing Database Control (this may take a while) ...Aug 29, 2007 9:27:34 AM oracle.sysman.emcp.util.DBControlUtilsecureDBConsoleINFO: Database Control secured successfully.Aug 29, 2007 9:27:34 AM oracle.sysman.emcp.util.DBControlUtilstartOMSINFO: Starting Database Control (this may take a while) ...Aug 29, 2007 9:36:05 AM oracle.sysman.emcp.EMDBPostConfigperformConfigurationINFO: Database Control started successfullyAug 29, 2007 9:36:08 AM oracle.sysman.emcp.EMDBPostConfigperformConfigurationINFO:>>>>>>>>>>>The Database Control URL is https://oratest:1158/em<<<<<<<<<<

Management Repository has been placed in secure mode whereinEnterprise Manager data will be encrypted.  Theencryption key has been placed in the file:/oracle11g/product/11g/oratest_test11g/sysman/config/emkey.ora.  Please ensure this file is backed up as the encrypted data willbecome unusable if this file is lost.

***********************************************************Enterprise Manager configuration completed successfullyFINISHED EMCA at Aug 29, 2007 9:37:51 AM

emkey.ora是密钥的所在地所以如果在生成系统上还是需要备份好的。$ more/oracle11g/product/11g/oratest_test11g/sysman/config/emkey.oraKEY=056790FE22685160158605895E3E62FC06D7C153C224D99BAA82236AD677DD962B974B3BDA0A678E9D8278C75662EFEB5A8EB793695A79C131F79B8F8BDBBD0380955F67D1BFBE675F5E20B9DC6B710A92

都完成之后，执行emctl status dbconsole可以查看状态，emctl startdbconsole和emctl stop dbconsole可以对Database Control ConsoleProcess进行启停。缺省端口依然跟10G一样是1158，不过似乎不在支持http，只能用https登陆。我从远程用ie7登陆的时候会警告证书是错误的(linux本地上没有问题)，不用管它，继续就可以看到em的登陆界面了，呵呵。

界面看起来挺友好的，具体功能有待日后研究。