Issue:-
While starting the database we are facing below error
SQL> startup;
ORA-32004: obsolete or deprecated parameter(s) specified for RDBMS instance
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
Cause: internal error, multiple post/wait creates attempted simultaneously
Action: check errno and contact Oracle Support
The issue seems to be entirely related to kernel parameter settings. Since you are running that many instances, you should check your semaphores. My guess is you do not have enough semaphores allowed for creating more processes. You need to set the kernel parameter.
Here's what's recommended for Oracle databases:
Change the below parameter in OS level.
# semaphores: semmsl, semmns, semopm, semmni
kernel.sem = 250 32000 100 128
While starting the database we are facing below error
SQL> startup;
ORA-32004: obsolete or deprecated parameter(s) specified for RDBMS instance
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
Cause: internal error, multiple post/wait creates attempted simultaneously
Action: check errno and contact Oracle Support
The issue seems to be entirely related to kernel parameter settings. Since you are running that many instances, you should check your semaphores. My guess is you do not have enough semaphores allowed for creating more processes. You need to set the kernel parameter.
Here's what's recommended for Oracle databases:
Change the below parameter in OS level.
# semaphores: semmsl, semmns, semopm, semmni
kernel.sem = 250 32000 100 128