kenyo's diary

_ [Solaris] How to change shared memory setting on Solaris

The procedure is as follows:

1. Edit the /etc/system file.

   set shmsys:shminfo_shmmax = 2097152
   set shmsys:shminfo_shmmin = 1
   set shmsys:shminfo_shmmni = 256
   set shmsys:shminfo_shmseg = 256

2. Reboot the system.

   # shutdown -y -i6 -g0

3. Confirm that the settings are correct using the sysdef command.

   # sysdef
   (snip)
   *
   * IPC Shared Memory
   *
      2097152      max shared memory segment size (SHMMAX)
        1  min shared memory segment size (SHMMIN)
      256  shared memory identifiers (SHMMNI)
      256  max attached shm segments per process (SHMSEG)
   (snip)

_ Words

• BTW: Abbreviation for "By The Way".
• OTOH: Abbreviation for "On The Other Hand".