Hi Friends,

I have the following listener status log for our ora10g db with SID=ora10 :

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Listener Parameter File /u01/app/oracle/product/10.1.0.2/network/admin/listene
r.ora
Listener Log File /u01/app/oracle/product/10.1.0.2/network/log/listener.
log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=P520)(PORT=1521)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "ora10" has 1 instance(s).
Instance "ora10", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
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What does >>Instance "ora10", status UNKNOWN<< mean? why it is unknown?

Thanks a lot