I am facing a problem when I am trying to connect to oracle database through a client. It is giving the message as below.

ERROR: ORA-01034: ORACLE not available
ORA-07429: smsgsg: shmget() failed to get segment.
SVR4 Error: 2: No such file or directory

the platform is
os - sun solaris 2.8
oracle - 7.3.4

If any one can help me out in this regard.

Thanks & Regards.,