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ORA-01034, ORA-27123, HP-UX Error 22 Connecting Via Oracle Net (Doc ID 384262.1)

Last updated on JANUARY 13, 2020

Applies to:

Oracle Net Services - Version to [Release 9.2 to 10.2]
Oracle Database - Enterprise Edition - Version to [Release 9.2 to 10.2]
Information in this document applies to any platform.


Server: Oracle9i R2 (9207) w/ CPUJul2006 on HP-UX 11.11
Client: Oracle9i or 10g client.

Customer reports the following error every time they try to connect to the Oracle9i R2
( database using Oracle Net, either locally on the server or from a remote client using

ORA-01034: ORACLE not available
ORA-27123: unable to attach to shared memory segment
HP-UX Error: 22: Invalid argument
Additional information: 1
Additional information: 2063

The server trace shows the following:


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