ASM实例远程连接

存在一个软件，远程连接ASM实例

tj2:/picclife/app/grid$ lsnrctl status
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.20.42)(PORT=)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.20.44)(PORT=)))
Services Summary...
Service "+ASM" has  instance(s).
  Instance "+ASM2", status READY, has  handler(s) for this service...
The command completed successfully

ASM_TNS =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.20.42)(PORT = ))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = +ASM)
    )
  )

tj2:/picclife/app/oracle/product/11.2./db_1/network/admin$ tnsping asm_tns
TNS Ping Utility for Linux: Version 11.2.0.3. - Production on -AUG- ::
Copyright (c) , , Oracle.  All rights reserved.
Used parameter files:
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.20.42)(PORT = )) (CONNECT_DATA =
 (SERVER = DEDICATED) (SERVICE_NAME = +ASM)))
OK ( msec)

tj2:/picclife/app/oracle/product/11.2./db_1/network/admin$ sqlplus sys/oracle123@asm_tns as sysdba
SQL*Plus: Release 11.2.0.3. Production on Thu Aug  ::
Copyright (c) , , Oracle.  All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3. - 64bit Production
With the Real Application Clusters and Automatic Storage Management options
SQL> select status from v$instance;
STATUS
------------------------
STARTED

到了版本11.2.0.3 连接ASM实例没啥特别的
Oracle Database - Enterprise Edition - Version 9.2.0.8 to 11.1.0.6 [Release 9.2 to 11.1]
在较低的版本中，ASM实例远程连接需要配置参数

How to connect to ASM instance from a remote client (Oracle Net) (文档 ID 340277.1)

 This note will resolve help resolve the following errors when trying to connect to an ASM isntance remotely
ORA-12505 TNS:listener could not resolve SID given in connect descriptor
ORA-12541: TNS:no listener
ORA-15000: command disallowed by current instance type
ORA-12528: TNS:listener: all appropriate instances are blocking new connections
ORA-1031:   insufficient privileges

解决方案：
1.将ASM监听配置为静态监听文件
SID_LIST_LISTENER =
    (SID_LIST =
      (SID_DESC =
         (SID_NAME = +ASM)
         (ORACLE_HOME = c:\oracle\app\product\11.1.0\db_1)
      )
   )
重启监听程序
2.修改Tnsnames.ora连接参数
ASM =
   (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = hostname)(PORT = 1521))
      (CONNECT_DATA =
         (SERVER = DEDICATED)
         (SID = +ASM)
         (UR=A)
      )
   )

UR=A选项通常用来连接使用nomount，mount或restricted模式启动数据库。

数据库启动到nomount，监听状态为BLOCKED；
数据库启动到mount，监听状态为READY；
数据库启动到restrict，监听状态为RESTRICT;
静态注册的asm为BLOCKED

3.参数调整（未测试，是否需要修改）
remote_login_passwordfile = exclusive ... for stand alone ASM setups
remote_login_passwordfile = shared ... for ASM setups that also use Real Application Cluster (RAC)