Concerned machines

Note: this is for 2007 installations on RAC1,RAC2,RAC3,RAC4; Minor changes for 2008 Q1 64 bit installation on RAC4. Quadcore installations are not yet considered here.

OS version

RedHat RHEL 4.0 ES 32-bit

New CDB template: pro_type_itrac_rhes4

Kernel version and extra boot option:

2.6.9-42.0.3.ELsmp selinux=0

Disk space division:

swap partition: 10GB
/ partition: 5 GB
/boot: 500 MB
/tmp: 2 GB
/var: 5 GB
/ORA/dbs00 and /ORA/dbs01: 50% of the rest available space each

Kernel parameters sysctl.conf:

kernel.core_uses_pid = 1
fs.file-max = 65536
kernel.sem = 250 32000 100 128
kernel.shmall = 2097152
kernel.shmmax = 3000000000
kernel.shmmni = 4096
net.core.rmem_default = 262144
net.core.rmem_max = 262144
net.core.wmem_default = 262144
net.core.wmem_max = 262144
net.ipv4.ip_local_port_range = 1024 65000
vm.nr_hugepages=1220
vm.lower_zone_protection=100

/etc/security/limits.conf

partial list of modifications
oracle  soft       nproc           4096    
oracle  soft       nofile          8192   
oracle  soft    memlock 50000000 
oracle  hard    memlock 50000000

Modprobe.conf

alias eth0 e1000
alias eth1 e1000
alias eth2 e1000
alias scsi_hostadapter 3w-xxxx
alias scsi_hostadapter1 qla2400 (NOTE: it's qla2300 on RAC1 and RAC2)
alias usb-controller ehci-hcd
alias usb-controller1 uhci-hcd
options hangcheck-timer hangcheck_tick=30 hangcheck_margin=180
options e1000 FlowControl=1
alias net-pf-10 off

Additional/updated packages:

rpms, from  pro_software_dbserver_x86_64_rhes4
+
cx_Oracle-4.1.2-10g-py23-1.i386.rpm
latest version of Midnight Commander
xauth
xterm

Change status to off for the following services:

netfs 
mdmonitor 
autofs 
portmap 
nfslock 
xfs 
cups 
checkxfsmount

acpid, cpuspeed,pcmcia, sendmail, named, readahead, haldaemon, 
readahead_early, rpcgssd, rpcidmapd, isdn

psacct should also be off (too much log volume is generated in combination with ORA CRS 10g)