段亚东的Oracle笔记

[oracle@oracle admin]$ cat listener.ora
# listener.ora Network Configuration File: /u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora
# Generated by Oracle configuration tools.
# the 2 items (DB01/DB02) are static listener info.

ADR_BASE_LISTENER_DB01 = /u01/app/oracle
ADR_BASE_LISTENER_DB02 = /u01/app/oracle
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = DB01)
(ORACLE_HOME = /u01/app/oracle/product/11.2.0/db_1)
(SID_NAME = DB01)
)
(SID_DESC =
(GLOBAL_DBNAME = DB02)
(ORACLE_HOME = /u01/app/oracle/product/11.2.0/db_1)
(SID_NAME = DB02)
)
)

[oracle@oracle admin]$ lsnrctl status
LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 19-MAY-2016 14:37:01
Copyright (c) 1991, 2013, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
-----------------------------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.4.0 - Production
Start Date 19-MAY-2016 14:34:34
Uptime 0 days 0 hr. 2 min. 26 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora
Listener Log File /u01/app/oracle/diag/tnslsnr/oracle/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=oracle.tt.local)(PORT=1521)))
Services Summary...
Service "DB01" has 2 instance(s).
Instance "DB01", status UNKNOWN, has 1 handler(s) for this service...
Instance "DB01", status BLOCKED, has 1 handler(s) for this service...
Service "DB02" has 1 instance(s).
Instance "DB02", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
[oracle@oracle admin]$