oracle kernel paramters for solaris10

steps for oracle kernel paramters setup for solaris 10.

1. Login as root

2. To add the project run the following command
# projadd user.oracle

3. To view the current values of the resource control, enter the following commands

. # id -p // to verify the project id
uid=0(root) gid=0(root) projid=1 (user.root)

4. # prctl -n project.max-shm-memory -i project user.root

5. # prctl -n project.max-sem-ids -i project user.root


If you must change any of the current values, then:
a. To modify the value of max-shm-memory to 6 GB:

# prctl -n project.max-shm-memory -v 6gb -r -i project user.root


d. To modify the value of max-sem-ids to 256:

# prctl -n project.max-sem-ids -v 256 -r -i project user.root


For changing the values for user.oracle run the following commands
#projmod -a -K "project.max-shm-memory=(priv,6,deny)" user.oracle
#projmod -a -K "project.max-sem=(priv,256,deny)" user.oracle

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The Solaris 10 Operating System introduces the following new resource controls to replace the old /etc/system tunables:Code: Old Old New New
Resource control tunable default Max value default
---------------------- ------------- ------- --------- ----------
process.max-msg-qbytes msginfo_msgmnb 4096 ULONG_MAX 65536
process.max-msg-messages msginfo_msgtql 40 UINT_MAX 8192
process.max-sem-ops seminfo_semopm 10 INT_MAX 512
process.max-sem-nsems seminfo_semmsl 25 SHRT_MAX 512
project.max-shm-memory shminfo_shmmax 0x800000 UINT64_MAX 1/4 physmem
project.max-shm-ids shminfo_shmmni 100 2**24 128
project.max-msg-ids msginfo_msgmni 50 2**24 128
project.max-sem-ids seminfo 10 2**24 128