Status description in lsnrctl

LSNRCTLstatusConnectingto (DESCRIPTION (ADDRESS (PROTOCOLTCP) (HOSTlixora) (PORT1521) STATUSoftheLISTENER -------------------- AliasLISTENERVersionTNSLSNRforLinux: Version10.2.0.1.0

LSNRCTL status Connecting to (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP) (HOST = lixora) (PORT = 1521) STATUS of the LISTENER ---------------------- Alias LISTENER Version TNSLSNR for Linux: version 10.2.0.1.0-Production Start Date 11-AUG-2014 00

LSNRCTL> status
Connecting to (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP) (HOST = lixora) (PORT = 1521 )))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 10.2.0.1.0-Production
Start Date 11-AUG-2014 00:42:37
Uptime 0 days 0 hr. 24 min. 32 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File/u02/app/oracle/product/10.2.0/db_1/network/admin/listener. ora
Listener Log File/u02/app/oracle/product/10.2.0/db_1/network/log/listener. log
Listening Endpoints Summary...
(DESCRIPTION = (ADDRESS = (PROTOCOL = tcp) (HOST = lixora) (PORT = 1521 )))
(DESCRIPTION = (ADDRESS = (PROTOCOL = ipc) (KEY = EXTPROC0 )))
Services Summary...
Service "PLSExtProc" has 1 instance (s ).
Instance "PLSExtProc", status UNKNOWN, has 1 handler (s) for this service...
Service "ora10g" has 1 instance (s ).
Instance "ora10g", status READY, has 1 handler (s) for this service...
Service "ora10gXDB" has 1 instance (s ).
Instance "ora10g", status READY, has 1 handler (s) for this service...
Service "ora10g_XPT" has 1 instance (s ).
Instance "ora10g", status READY, has 1 handler (s) for this service...
The command completed successfully
LSNRCTL>

About 'instance "ora10g", status READY, has 1 handler (s) for this service ...'
Status description:
This status indicates the instance status.

Instance Specifies the name of the instance associated with the service along
With its status and number of service handlers associated with
Service
Status can be one of the following:
■ A ready status means that the instance can accept connections.
----- The instance is dynamically registered by pmon, so the displayed status is 'ready'

■ A blocked status means that the instance cannot accept connections.
----- The instance cannot be connected. Generally, when the instance is in the nomount state, pmon cannot register the instance to the listener. Because the database has not enabled pmon, it cannot determine whether the database can provide external services.

■ A ready/SECONDARY status means that this is a secondary instance in an Oracle9 I Real Application Clusters
Primary/secondary configuration and is ready to accept connections.

■ An UNKNOWN status means that the instance is registered statically in the listener. ora file rather than dynamically
With service registra tion. Therefore, the status is non known.
------ This 'unknown 'indicates that the instance is statically registered to the listener.