Last updated on DECEMBER 06, 2016
Applies to:
Oracle Database - Enterprise Edition - Version 10.1.0.2 to 11.2.0.4 [Release 10.1 to 11.2]Oracle Database - Enterprise Edition - Version 12.1.0.2 to 12.1.0.2 [Release 12.1]
Information in this document applies to any platform.
Symptoms
On a linux server, when an additional database instance is brought up, getting errors:
SQL> startup nomount
ORA-27154: post/wait create failed
ORA-27300: OS system dependent operation:semget failed with status: 28
ORA-27301: OS failure message: No space left on device
ORA-27302: failure occurred at: sskgpcreates
Changes
An additional database has been created on a linux server.
PROCESSES parameter in init.ora set to the correct value, accordingly.
Linux Kernel Parameter for Semaphore - Total 32000 semaphore are available in the system but still gets an error - ORA-27300.
$ ipcs -ls
------ Semaphore Limits --------
max number of arrays = 128
max semaphores per array = 250
max semaphores system wide = 32000
max ops per semop call = 100
semaphore max value = 32767
Cause
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