Today morning our SYSADMIN rebooted SUN box, it came up fine but Informix is down.
I am getting a message in Informix online.log as follows:
"mt_shm_remove: WARNING: may not have removed all/correct segments".
I checked /dev/rdsk/dbs* permissions, owner & group. Everything looks fine, it has 660 & Informix as owner & group. Checked the /etc/system parameters & that also looks fine. Checked SQLhosts & looks fine.
Checked for ipcs, nothing is running except for 2 root process.
I ran out of all my options, I am badly in need of some help, please folks help me out.
This problem comes from the shared memory part of informix server.
I'm not too good at shared memory management in the SUN-box, but your sysadm should be able to help you when you know it's a memory problem. There is some parameters in the onconfig file, setting shared memory system.
Look at buffers,shmbase, shmvirtsize, shmadd and shmtotal, to see if something changed. Changes in the onconfig-file is logged in your
%INFORMIXDIR%/%SERVERNAME%.log - file.