Solaris 10, project files

On Solaris 10, system V  IPC paramters( e.g shmmax,shmseg) are set under user specific projects and these values take effect on a per-project basis only and are not system-wide values. We do not need to set them in /etc/system and even if set, the values are ignored.

All the processes started by users who are member of a project inherit the parameter values from /etc/project file.

hostA: /etc\> projects -l

user.oracle

        projid : 1001

        comment: "Oracle Project"

        users  : oracle

        groups : dba

                 oinstall

        attribs: process.max-sem-nsems=(priv,256,deny)

                 project.max-sem-ids=(priv,100,deny)

                 project.max-shm-ids=(priv,128,deny)

                 project.max-shm-memory=(priv,4294967296,deny)

hostA: /etc\> more /etc/project

system:0::::

user.root:1::::

noproject:2::::

default:3::::

group.staff:10::::

user.oracle:100:Oracle Project:oracle:dba,oinstall:process.max-sem-nsems=(priv,256,deny);project.max-sem-ids=(priv,100,deny);project.max-shm-ids=(priv,128,den

y);project.max-shm-memory=(priv,4294967296,deny)

      After editing the /etc/project file, we also need to give privilege to oracle user to be able to use projects, otherwise even if projects are created properly , it will not take effect.

ggnqccita2: /etc\> more /etc/user_attr

oracle::::project=user.oracle

The values set in /etc/project file are dynamic and do not need reboot to take effect. In previous versions of solaris, the values set in /etc/system did not take effect until reboot.