Install 11g R2 RAC on Linux

Step By Step: Install and setup Oracle 11g R2 RAC on Oracle Enterprise Linux 5.5 (32 bit) Platform.

By Bhavin Hingu

This Document shows the step by step of installing and setting up 3-Node 11gR2 RAC cluster. This setup uses IP Based iSCSI Openfiler SAN as a shared storage subsystem. This setup does not have IPMI and Grid Naming Service (GNS) configured. The SCAN is resolved through DNS.

Hardware Used in setting up 3-node 11g R2 RAC using iSCSI SAN (Openfiler):

· Total Machines: 5 (3 for RAC nodes + 1 for NAS + 1 for DNS)

· Network Switches: 3 (for Public, Private and Shared Storage)

· Extra Network Adaptors: 7 (6 for RAC nodes (2 for each node) and one for Storage Server)

· Network cables: 11 (9 for RAC nodes (3 for each node), one for Shared Storage and 1 for DNS server)

· External USB HD: 1 (1 TB)

Machines Specifications:

DELL OPTIPLEX GX620

CPU: Intel 3800MHz

RAM: 4084MB

HD: 250GB

DVD, 10/100 NIC, 8 MB VRAM

Network Adaptor Specifications:

Linksys EG1032 Instant Gigabit Network Adapter

Network Switch Specifications:

D-Link 24-Port Rackmountable Gigabit Switch

Network Cables Specifications:

25-Foot Cat6 Snagless Patch Cable – (Blue, Black and Grey)

Software Used for the 3-node RAC Setup using NAS (Openfiler):

· NAS Storage Solution: Openfiler 2.3 (2.6.26.8-1.0.11.smp.pae.gcc3.4.x86.i686)

· Operating System: Oracle Enterprise Linux 5.5 (2.6.18-194.el5PAE)

· Clusterware: Oracle 11g R2 Grid Infrastructure (11.2.0.1)

· Oracle RAC: Oracle RDBMS 11g R2 (11.2.0.1)

3-Node RAC Setup

Operating System: Oracle Enterprise Linux 5.5 (2.6.18-194.el5PAE):

Server: All the RAC Nodes + DNS server

Grid Infrastructure Software (Clusterware + ASM 11.2.0.1):

Server: All the RAC Nodes

ORACLE_BASE: /u01/app/grid

ORACLE_HOME: /u01/app/grid11201

Owner: grid (Primary Group: oinstall, Secondary Group: asmadmin, asmdba)

Permissions: 755

OCR/Voting Disk Storage Type: ASM

Oracle Inventory Location: /u01/app/oraInventory

Oracle Database Software (RAC 11.2.0.1):

Server: All the RAC Nodes

ORACLE_BASE: /u01/app/oracle

ORACLE_HOME: /u01/app/oracle/db11201

Owner: oracle (Primary Group: oinstall, Secondary Group: asmdba, dba)

Permissions: 755

Oracle Inventory Location: /u01/app/oraInventory

Database Name: labdb

Listener: LAB_LISTENER (TCP:1525)

Openfiler 2.3:

Server: single dedicated server acting as NAS.

OS: Openfiler 2.3 (2.6.26.8-1.0.11.smp.pae.gcc3.4.x86.i686).

3-Node RAC Architecture:

Machine	Public Name	Private Name	VIP Name
RAC Node1	node1.hingu.net	node1-prv	node1-vip.hingu.net
RAC Node2	node2.hingu.net	node2-prv	node2-vip.hingu.net
RAC Node3	node3.hingu.net	node3-prv	node3-vip.hingu.net
Storage	nas-server	N/A	N/A
DNS server	lab-dns	N/A	N/A

SCAN IPs:

192.168.2.151

192.168.2.152

192.168.2.153

SCAN: lab-scan.hingu.net

Cluster Name: lab

Public Network: 192.168.2.0/eth2

Private network (cluster Interconnect): 192.168.0.0/eth0

Private network (Storage Network): 192.168.1.0/eth1

Machine	Public IP	Private IP	VIP	Storage IP
RAC Node1	192.168.2.1	192.168.0.1	192.168.2.51	192.168.1.1
RAC Node2	192.168.2.2	192.168.0.2	192.168.2.52	192.168.1.2
RAC Node3	192.168.2.3	192.168.0.3	192.168.2.53	192.168.1.3
Storage	N/A	N/A	N/A	192.168.1.101
DNS server	192.168.2.200	N/A	N/A	N/A

The Installation is divided into 3 main categories:

· Pre-installation task.

· Installation of Oracle 11g R2 Grid Infrastructure (11.2.0.1).

· Installation of Oracle 11g R2 Real Application Cluster (RAC 11.2.0.1).

Pre-installation task:

Server Hardware requirements

Hardware Used in this exercise to setup 3-Node RAC

Software Requirement.

3-Node 11g R2 RAC Architecture/Setup

Installation of Oracle Enterprise Linux 5

Installation of Openfiler 2.3

Linux Package Requirement

Network Setup

DNS setup for SCAN resolution

Creating Oracle Software owners/Groups/Permissions/HOMEs

Installation of cvuqdisk Package

Setup of Network Time Protocol

Setup Oracle Software Owner’s Environment

Setting up SSH equivalency for Oracle Software Owners

Configure Shared Storage iSCSI disks using openfiler

Configure the iSCSI disk Devices for Oracle ASM with ASMLib

Server Hardware Requirements:

· Each node in the Cluster must meet the below requirement.

· At least 1024 x 768 display resolution, so that OUI displays correctly.

· 1 GB of space in the /tmp directory

· 5.5 GB space for Oracle Grid Infrastructure Home.

· At least 2.5 GB of RAM and equivalent swap space (for 32 bit installation as in my case).

· All the RAC nodes must share the same Instruction Set Architecture. For a testing RAC setup, it is possible to install RAC on servers with mixtures of Intel 32 and AMD 32 with differences in sizes of Memory/CPU speed.

Installation of OEL5.5 (On All the RAC Nodes and DNS Host):

The below selection was made during the installation of OEL5 on the Node 1 (node1.hingu.net). The same process was followed to install RHEL 5 on all the remaining RAC nodes and DNS Host (lab-dns).

The Hostname/IP information was appropriately chosen for respective nodes from the Architecture diagram.

Insert Installation Media #1:

Testing the CD Media: Skip

Language: English

Key Board: U.S. English

Partition Option: “Remove all Partitions on selected drives and create default layout”

Boot Loader: “ The GRUB boot loader will be installed on /dev/sda”

Network Devices:

Active on Boot	Devices	IPV4.Netmask	IPV6/Prefix

Yes	eth0	192.168.0.1/255.255.255.0	Auto
Yes	eth1	192.168.1.1/255.255.255.0	Auto
Yes	eth2	192.168.2.1/255.255.255.0	Auto

Hostname à Manually à node1.hingu.net

Ignore both the Warning Messages at this point

Region: America/New York

System Clock Uses UTC (checked)

Root Password à Enter the root password

Additional Tasks On top of Default Installation: “Checked all Software Development” and “Web Server”

Customize Now (Selected)

(Below is the extra selection on top of the default selected packages)

Applications à Authoring and Publishing (checked)

Development à Development Libraries à

libstdc++44-devel

Development à Java Development

Development à Legacy Software Development

Servers à Checked All the servers

Servers à Legacy Network Server à

bootparamd, rsh-server, rusers, rusers-server, telnet-server

Servers à Network Servers à

dhcp, dhcpv6, dnsmasq, ypserv

Servers à Servers Configuration Tools à

Checked All

Base System àAdministration Tools à

Checked All

Base System à Base à

device-mapper-multipath, iscsi-initiator-utils,

Base System à Legacy Software Support à

openmotif22

Base System à System Tools à

OpenIPMI-gui, lsscsi, oracle*, sysstat, tsclient

Post Installation Steps:

(1) Yes to License Agreement.

(2) Disable the firewall

(3) Disable SELinux

(4) Disable kdump

(5) Set the clock

(6) Finish

Installation of openfiler 2.3

Version: Openfiler V 2.3 (downloaded from here)

This Install guide was followed to install Openfiler with below values of Hostname and IP.

HOSTNAME: nas-server

Network:

NAS IP: 192.168.1.101

NETMASK: 255.255.255.0

Post installation Steps:

· Disabled the Firewall using system-config-securitylevel-tui

· Changed the password of the openfiler user (default is password)

· Connected to the nas-server using: https://192.168.1.101:446/ link.

· Registered the cluster nodes in the “Network Access Configuration” under the “System” tab.

· ‘Enable” all the services shown under the ‘Service” tab

System Setup Screen

Minimum Required RPMs for OEL 5.5 (All the 3 RAC Nodes):

binutils-2.17.50.0.6

compat-libstdc++-33-3.2.3

elfutils-libelf-0.125

elfutils-libelf-devel-0.125

elfutils-libelf-devel-static-0.125

gcc-4.1.2

gcc-c++-4.1.2

glibc-2.5-24

glibc-common-2.5

glibc-devel-2.5

glibc-headers-2.5

kernel-headers-2.6.18

ksh-20060214

libaio-0.3.106

libaio-devel-0.3.106

libgcc-4.1.2

libgomp-4.1.2

libstdc++-4.1.2

libstdc++-devel-4.1.2

make-3.81

numactl-devel-0.9.8.i386

sysstat-7.0.2

unixODBC-2.2.11

unixODBC-devel-2.2.11

Below command verifies whether the specified rpms are installed or not. Any missing rpms can be installed from the OEL Media Pack

rpm -q binutils compat-libstdc++-33 elfutils-libelf elfutils-libelf-devel elfutils-libelf-devel-static \

gcc gcc-c++ glibc glibc-common glibc-devel glibc-headers kernel-headers ksh libaio libaio-devel \

libgcc libgomp libstdc++ libstdc++-devel make numactl-devel sysstat unixODBC unixODBC-devel

I had to install below extra RPMs.

numactl-devel à Located on the 3^rd CD of OEL 5.5 Media pack.

oracleasmlib à Available here (one for RHEL compatible)

cvuqdisk à Available on Grid Infrastructure Media (under rpm folder)

[root@node1 ~]# rpm -ivh numactl-devel-0.9.8-11.el5.i386.rpm

warning: numactl-devel-0.9.8-11.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID 1e5e0159

Preparing... ########################################### [100%]

1:numactl-devel ########################################### [100%]

[root@node1 ~]#

[root@node1 rpms]# rpm -ivh oracleasmlib-2.0.4-1.el5.i386.rpm

warning: oracleasmlib-2.0.4-1.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID 1e5e0159

Preparing... ########################################### [100%]

1:oracleasmlib ########################################### [100%]

Network Configuration for RAC Nodes/NAS Server/DNS Host:

Public, VIPs and SCAN VIPs are resolved by DNS. The private IPs for Cluster Interconnects are resolved through /etc/hosts. The hostname along with public/private and NAS network is configured at the time of OEL network installations. The final Network Configurations files are listed here.

(a) hostname:

For Node node1:

[root@node1 ~]# hostname node1.hingu.net

node1.hingu.net: /etc/sysconfig/network

NETWORKING=yes

NETWORKING_IPV6=yes

HOSTNAME=node1.hingu.net

For Node node2:

[root@node2 ~]# hostname node2.hingu.net

node2.hingu.net: /etc/sysconfig/network

NETWORKING=yes

NETWORKING_IPV6=yes

HOSTNAME=node2.hingu.net

For Node node3:

[root@node3 ~]# hostname node3.hingu.net

node3.hingu.net: /etc/sysconfig/network

NETWORKING=yes

NETWORKING_IPV6=yes

HOSTNAME=node3.hingu.net

For Node nas-server:

[root@nas-server ~]# hostname nas-server

nas-server: /etc/sysconfig/network

NETWORKING=yes

HOSTNAME=nas-server

For Node lab-dns:

[root@lab-dns ~]# hostname lab-dns

lab-dns.hingu.net: /etc/sysconfig/network

NETWORKING=yes

NETWORKING_IPV6=yes

HOSTNAME=nas-server

(b) Private Network for Cluster Interconnect:

node1.hingu.net: /etc/sysconfig/network-scripts/ifcfg-eth0

# Linksys Gigabit Network Adapter

DEVICE=eth0

BOOTPROTO=static

BROADCAST=192.168.0.255

HWADDR=00:22:6B:BF:4E:60

IPADDR=192.168.0.1

IPV6INIT=yes

IPV6_AUTOCONF=yes

NETMASK=255.255.255.0

NETWORK=192.168.0.0

ONBOOT=yes

node2.hingu.net: /etc/sysconfig/network-scripts/ifcfg-eth0

# Linksys Gigabit Network Adapter

DEVICE=eth0

BOOTPROTO=static

BROADCAST=192.168.0.255

HWADDR=00:22:6B:BF:4E:4B

IPADDR=192.168.0.2

IPV6INIT=yes

IPV6_AUTOCONF=yes

NETMASK=255.255.255.0

NETWORK=192.168.0.0

ONBOOT=yes

node3.hingu.net: /etc/sysconfig/network-scripts/ifcfg-eth0

# Linksys Gigabit Network Adapter

DEVICE=eth0

BOOTPROTO=static

BROADCAST=192.168.0.255

HWADDR=00:22:6B:BF:4E:49

IPADDR=192.168.0.3

IPV6INIT=yes

IPV6_AUTOCONF=yes

NETMASK=255.255.255.0

NETWORK=192.168.0.0

ONBOOT=yes

node1.hingu.net: /etc/sysconfig/network-scripts/ifcfg-eth2

# Broadcom Corporation NetXtreme BCM5751 Gigabit Ethernet PCI Express

DEVICE=eth2

BOOTPROTO=static

BROADCAST=192.168.2.255

HWADDR=00:18:8B:04:6A:62

IPADDR=192.168.2.1

IPV6INIT=yes

IPV6_AUTOCONF=yes

NETMASK=255.255.255.0

NETWORK=192.168.2.0

ONBOOT=yes

node2.hingu.net: /etc/sysconfig/network-scripts/ifcfg-eth2

# Broadcom Corporation NetXtreme BCM5751 Gigabit Ethernet PCI Express

DEVICE=eth2

BOOTPROTO=static

BROADCAST=192.168.2.255

HWADDR=00:18:8B:24:F8:58

IPADDR=192.168.2.2

IPV6INIT=yes

IPV6_AUTOCONF=yes

NETMASK=255.255.255.0

NETWORK=192.168.2.0

ONBOOT=yes

node3.hingu.net: /etc/sysconfig/network-scripts/ifcfg-eth2

# Broadcom Corporation NetXtreme BCM5751 Gigabit Ethernet PCI Express

DEVICE=eth2

BOOTPROTO=static

BROADCAST=192.168.2.255

HWADDR=00:19:B9:0C:E6:EF

IPADDR=192.168.2.3

IPV6INIT=yes

IPV6_AUTOCONF=yes

NETMASK=255.255.255.0

NETWORK=192.168.2.0

ONBOOT=yes

lab-dns.hingu.net: /etc/sysconfig/network-scripts/ifcfg-eth0

# Broadcom Corporation NetXtreme BCM5751 Gigabit Ethernet PCI Express

DEVICE=eth0

BOOTPROTO=static

BROADCAST=192.168.2.255

HWADDR=00:13:72:A1:E9:1B

IPADDR=192.168.2.200

NETMASK=255.255.255.0

NETWORK=192.168.2.0

ONBOOT=yes

(d) Private Network for Shared Storage:

node1.hingu.net: /etc/sysconfig/network-scripts/ifcfg-eth1

# Linksys Gigabit Network Adapter

DEVICE=eth1

BOOTPROTO=static

BROADCAST=192.168.1.255

HWADDR=00:22:6B:BF:4E:60

IPADDR=192.168.1.1

IPV6INIT=yes

IPV6_AUTOCONF=yes

NETMASK=255.255.255.0

NETWORK=192.168.1.0

ONBOOT=yes

node2.hingu.net: /etc/sysconfig/network-scripts/ifcfg-eth1

# Linksys Gigabit Network Adapter

DEVICE=eth1

BOOTPROTO=static

BROADCAST=192.168.1.255

HWADDR=00:22:6B:BF:45:13

IPADDR=192.168.1.2

IPV6INIT=yes

IPV6_AUTOCONF=yes

NETMASK=255.255.255.0

NETWORK=192.168.1.0

ONBOOT=yes

node3.hingu.net: /etc/sysconfig/network-scripts/ifcfg-eth1

# Linksys Gigabit Network Adapter

DEVICE=eth1

BOOTPROTO=static

BROADCAST=192.168.1.255

HWADDR=00:22:6B:BF:4E:48

IPADDR=192.168.1.3

IPV6INIT=yes

IPV6_AUTOCONF=yes

NETMASK=255.255.255.0

NETWORK=192.168.1.0

ONBOOT=yes

nas-server.hingu.net: /etc/sysconfig/network-scripts/ifcfg-eth1

DEVICE=eth1

BOOTPROTO=static

BROADCAST=192.168.1.255

HWADDR=00:22:6B:BF:43:D6

IPADDR=192.168.1.101

NETMASK=255.255.255.0

NETWORK=192.168.1.0

ONBOOT=yes

TYPE=Ethernet

(e) /etc/hosts files:

node1.hingu.net: /etc/hosts

# # Do not remove the following line, or various programs

# that require network functionality will fail.

127.0.0.1 node1.hingu.net node1 localhost.localdomain localhost

::1 localhost6.localdomain6 localhost6

##=======================================

# Private Network for Cluster Interconnect

##=======================================

192.168.0.1 node1-prv

192.168.0.2 node2-prv

192.168.0.3 node3-prv

##=======================================

node2.hingu.net: /etc/hosts

# # Do not remove the following line, or various programs

# that require network functionality will fail.

127.0.0.1 node2.hingu.net node2 localhost.localdomain localhost

::1 localhost6.localdomain6 localhost6

##=======================================

# Private Network for Cluster Interconnect

##=======================================

192.168.0.1 node1-prv

192.168.0.2 node2-prv

192.168.0.3 node3-prv

##=======================================

node3.hingu.net: /etc/hosts

# # Do not remove the following line, or various programs

# that require network functionality will fail.

127.0.0.1 node3.hingu.net node3 localhost.localdomain localhost

::1 localhost6.localdomain6 localhost6

##=======================================

# Private Network for Cluster Interconnect

##=======================================

192.168.0.1 node1-prv

192.168.0.2 node2-prv

192.168.0.3 node3-prv

##=======================================

lab-dns.hingu.net: /etc/hosts

# # Do not remove the following line, or various programs

# that require network functionality will fail.

127.0.0.1 lab-dns.hingu.net lab-dns localhost.localdomain localhost

::1 localhost6.localdomain6 localhost6

Configure DNS server for SCAN VIPs, Node VIPs and Node IPs:

DNS Server: lab-dns.hingu.net

RPMs required in setting up DNS server:

ypbind-1.19-12.el5

bind-utils-9.3.6-4.P1.el5_4.2

bind-9.3.6-4.P1.el5_4.2

system-config-bind-4.0.3-4.0.1.el5

bind-libs-9.3.6-4.P1.el5_4.2

bind-chroot-9.3.6-4.P1.el5_4.2

Configurations files modified/created to set up DNS:

lab-dbs.hingu.net

/var/named/chroot/etc/named.conf (modified)

/var/named/chroot/var/named/hingu.net.zone (created)

/var/named/chroot/var/named/2.168.192.in-addr.arpa.zone (created)

/var/named/chroot/var/named/1.168.192.in-addr.arpa.zone (created)

On node1, node2 and node3

/etc/resolv.conf (modified)

/var/named/chroot/etc/named.conf

// Enterprise Linux BIND Configuration Tool

// Default initial "Caching Only" name server configuration

options {

directory "/var/named";

dump-file "/var/named/data/cache_dump.db";

statistics-file "/var/named/data/named_stats.txt";

};

// Zone for this RAC configuration is hingu.net

zone "hingu.net" in {

type master;

file "hingu.net.zone";

allow-update { none; };

};

// For reverse lookups

zone "2.168.192.in-addr.arpa" in {

type master;

file "2.168.192.in-addr.arpa.zone";

allow-update { none; };

};

zone "1.168.192.in-addr.arpa" in {

type master;

file "1.168.192.in-addr.arpa.zone";

allow-update { none; };

};

include "/etc/rndc.key";

/var/named/chroot/var/named/hingu.net.zone

$TTL 1d

hingu.net. IN SOA lab-dns.hingu.net. root.hingu.net. (

100 ; se = serial number

8h ; ref = refresh

5m ; ret = update retry

3w ; ex = expiry

3h ; min = minimum

)

IN NS lab-dns.hingu.net.

; DNS server

lab-dns IN A 192.168.2.200

; RAC Nodes Public name

node1 IN A 192.168.2.1

node2 IN A 192.168.2.2

node3 IN A 192.168.2.3

; RAC Nodes Public VIPs

node1-vip IN A 192.168.2.51

node2-vip IN A 192.168.2.52

node3-vip IN A 192.168.2.53

; 3 SCAN VIPs

lab-scan IN A 192.168.2.151

lab-scan IN A 192.168.2.152

lab-scan IN A 192.168.2.153

; Storage Network

nas-server IN A 192.168.1.101

node1-nas IN A 192.168.1.1

node2-nas IN A 192.168.1.2

node3-nas IN A 192.168.1.3

/var/named/chroot/var/named/2.168.192.in-addr.arpa.zone

$TTL 1d

@ IN SOA lab-dns.hingu.net. root.hingu.net. (

100 ; se = serial number

8h ; ref = refresh

5m ; ret = update retry

3w ; ex = expiry

3h ; min = minimum

)

IN NS lab-dns.hingu.net.

; DNS machine name in reverse

200 IN PTR lab-dns.hingu.net.

; RAC Nodes Public Name in Reverse

1 IN PTR node1.hingu.net.

2 IN PTR node2.hingu.net.

3 IN PTR node3.hingu.net.

; RAC Nodes Public VIPs in Reverse

51 IN PTR node1-vip.hingu.net.

52 IN PTR node2-vip.hingu.net.

53 IN PTR node3-vip.hingu.net.

; RAC Nodes SCAN VIPs in Reverse

151 IN PTR lab-scan.hingu.net.

152 IN PTR lab-scan.hingu.net.

153 IN PTR lab-scan.hingu.net.

/var/named/chroot/var/named/1.168.192.in-addr.arpa.zone

$TTL 1d

@ IN SOA lab-dns.hingu.net. root.hingu.net. (

100 ; se = serial number

8h ; ref = refresh

5m ; ret = update retry

3w ; ex = expiry

3h ; min = minimum

)

IN NS lab-dns.hingu.net.

; Storage Network Reverse Lookup

101 IN PTR nas-server.hingu.net.

1 IN PTR node1-nas.hingu.net.

2 IN PTR node2-nas.hingu.net.

3 IN PTR node3-nas.hingu.net.

/etc/resolv.conf (on RAC nodes):

search hingu.net

nameserver 192.168.2.200

Start the DNS Service (named):

service named start

chkconfig --level 35 named on

Verify the DNS Setup:

NOTE: nslookup for lab-scan should return names in random order every time.

Enable Name Service Cache Daemon nscd: (On all the RAC Nodes)

chkconfig --level 35 nscd on

service ncsd start

Creating Oracle Users/Groups/Permissions and Installation Paths: (On all the RAC Nodes):

userdel oracle

groupdel oinstall

groupdel dba

groupadd -g 1000 oinstall

groupadd -g 1020 asmadmin

groupadd -g 1021 asmdba

groupadd -g 1031 dba

useradd -u 1100 -g oinstall -G asmadmin,asmdba grid

useradd -u 1101 -g oinstall -G dba,asmdba oracle

mkdir -p /u01/app/grid11201

mkdir -p /u01/app/grid

chown -R grid:oinstall /u01

mkdir -p /u01/app/oracle

chown oracle:oinstall /u01/app/oracle

chmod -R 775 /u01

passwd grid

passwd oracle

Install cvuqdisk Package: (On all the RAC Nodes):

This package is located in the rpm directory on Grid Infrastructure Media and needs to be installed after the group oinstall is created. In my case, as this was a fresh install of 11g R2 on new hardware, old versions of cvuqdisk was not present. If it is, then the older version needs to be removed first.

export CVUQDISK_GRP=oinstall

echo $CVUQDISK

rpm –ivh cvuqdisk-1.0.7-1.rpm

[root@node1 rpm]# pwd

/home/grid/11gR2_for_OEL5/grid11201/grid/rpm

[root@node1 rpm]# export CVUQDISK_GRP=oinstall

[root@node1 rpm]# echo $CVUQDISK_GRP

oinstall

[root@node1 rpm]# rpm -ivh cvuqdisk-1.0.7-1.rpm

Preparing... ########################################### [100%]

1:cvuqdisk ########################################### [100%]

[root@node1 rpm]# rpm -qa | grep cvuqdisk

cvuqdisk-1.0.7-1

[root@node1 rpm]#

Network Time Protocol Setting (On all the RAC Nodes):

In this installation, Oracle Time Synchronization Service is used over the Linux system provided ntpd. So, it needs to deactivated and deinstalled to avoid any possibility of it being conflicted with the Oracle’s Cluster Time Sync Service (ctss).

# /sbin/service ntpd stop

# chkconfig ntpd off

# mv /etc/ntp.conf /etc/ntp.conf.org

Also remove the following file:

/var/run/ntpd.pid

Configure Grid Infrastructure as well as Oracle RAC Owner’s User Environment (grid and oracle):

(a) Set the umask to 022 by putting below line into these users’ (grid and oracle) .bash_profile files:

umask 022

Then, executed the .bash_profile and verified that the correct value of umask is displayed.

[grid@node1 ~]$ . .bash_profile

[grid@node1 ~]$ umask

(b) Setting up X11 forwarding:

Created the file ~/.ssh/config to disable the X11Forwadding by placing below line in it.

Host *

ForwardX11 no

Modified the file ~/.bashrc (or .cshrc for C shell) with below entry.

Bourne, Bash, or Korn shell:

if [ -t 0 ]; then

stty intr ^C

C shell:

test -t 0

if ($status == 0) then

stty intr ^C

endif

(d) Increased the Shell Limits:

Recommended:

Resource	Soft Limit	Hard Limit
Processes	2047	16384
Open File Descriptors	1024	65536
Stack	10240	10240 - 32768

Set:

Resource	Soft Limit	Hard Limit
Processes	131072	131072
Open File Descriptors	131072	131072
Stack	32768	32768

Added the following lines to the /etc/security/limits.conf file:

oracle soft nofile 131072

oracle hard nofile 131072

oracle soft nproc 131072

oracle hard nproc 131072

oracle soft core unlimited

oracle hard core unlimited

oracle soft memlock 3500000

oracle hard memlock 3500000

# Recommended stack hard limit 32MB for oracle installations

# oracle hard stack 32768

grid soft nofile 131072

grid hard nofile 131072

grid soft nproc 131072

grid hard nproc 131072

grid soft core unlimited

grid hard core unlimited

grid soft memlock 3500000

grid hard memlock 3500000

# Recommended stack hard limit 32MB for grid installations

# grid hard stack 32768

Added the following line in the /etc/pam.d/login file, if it does not already exist:

session required /lib/security/pam_limits.so

For the Bourne, Bash, or Korn shell, add the following lines to the /etc/profile:

if [ $USER = "oracle" ]; then

if [ $SHELL = "/bin/ksh" ]; then

ulimit -p 131072

ulimit -n 131072

else

ulimit -u 131072 -n 131072

if [ $USER = "grid" ]; then

if [ $SHELL = "/bin/ksh" ]; then

ulimit -p 131072

ulimit -n 131072

else

ulimit -u 131072 -n 131072

For the C shell (csh or tcsh), add the following lines to the /etc/csh.login.

if ( $USER == "oracle" ) then

limit maxproc 131072

limit descriptors 131072

endif

if ( $USER == "grid" ) then

limit maxproc 131072

limit descriptors 131072

endif

(e) Set the below Kernel Parameters with recommended range in /etc/sysctl.conf

This was already set with the installation of oracle-validated package.

/etc/sysctl.conf

# Kernel sysctl configuration file for Oracle Enterprise Linux

# For binary values, 0 is disabled, 1 is enabled. See sysctl(8) and

# sysctl.conf(5) for more details.

# Controls IP packet forwarding

net.ipv4.ip_forward = 0

# Controls source route verification

net.ipv4.conf.default.rp_filter = 1

# Do not accept source routing

net.ipv4.conf.default.accept_source_route = 0

# Controls the System Request debugging functionality of the kernel

kernel.sysrq = 1

# Controls whether core dumps will append the PID to the core filename

# Useful for debugging multi-threaded applications

kernel.core_uses_pid = 1

# Controls the use of TCP syncookies

net.ipv4.tcp_syncookies = 1

# Controls the maximum size of a message, in bytes

kernel.msgmnb = 65536

# Controls the default maxmimum size of a mesage queue

kernel.msgmax = 8192

# Controls the maximum shared segment size, in bytes

kernel.shmmax = 4294967295

# Controls the maximum number of shared memory segments, in pages

kernel.shmall = 1073741824

# For 11g, recommended value for file-max is 6815744

fs.file-max = 6815744

# For 10g, uncomment 'fs.file-max 327679', comment other entries for this parameter and re-run sysctl -p

# fs.file-max:327679

kernel.msgmni = 2878

kernel.sem = 250 32000 100 142

kernel.shmmni = 4096

net.core.rmem_default = 262144

# For 11g, recommended value for net.core.rmem_max is 4194304

net.core.rmem_max = 4194304

# For 10g, uncomment 'net.core.rmem_max 2097152', comment other entries for this parameter and re-run sysctl -p

# net.core.rmem_max=2097152

net.core.wmem_default = 262144

# For 11g, recommended value for wmem_max is 1048576

net.core.wmem_max = 1048576

# For 10g, uncomment 'net.core.wmem_max 262144', comment other entries for this parameter and re-run sysctl -p

# net.core.wmem_max:262144

fs.aio-max-nr = 3145728

# For 11g, recommended value for ip_local_port_range is 9000 65500

net.ipv4.ip_local_port_range = 9000 65500

# For 10g, uncomment 'net.ipv4.ip_local_port_range 1024 65000', comment other entries for this parameter and re-run sysctl -p

# net.ipv4.ip_local_port_range:1024 65000

# Added min_free_kbytes 50MB to avoid OOM killer on EL4/EL5

vm.min_free_kbytes = 51200

(f) Repeated this process for all the remaining nodes in the cluster.

SSH user Equivalency configuration (grid and oracle):

On All the Cluster Nodes:

su - oracle

mkdir ~/.ssh

chmod 700 ~/.ssh

Generate the RSA and DSA keys:

/usr/bin/ssh-keygen -t rsa

/usr/bin/ssh-keygen -t dsa

On node1:

touch ~/.ssh/authorized_keys

cd ~/.ssh

(a) Add these Keys to the Authorized_keys file.

cat id_rsa.pub >> authorized_keys

cat id_dsa.pub >> authorized_keys

(b) Send this file to node2.

scp authorized_keys node2:.ssh/

On node2:

(a) Add these Keys to the Authorized_keys file.

cd ~/.ssh

cat id_rsa.pub >> authorized_keys

cat id_dsa.pub >> authorized_keys

(b) Send this file to node3.

scp authorized_keys node3:.ssh/

On node3:

(a) Add these Keys to the Authorized_keys file.

cd ~/.ssh

cat id_rsa.pub >> authorized_keys

cat id_dsa.pub >> authorized_keys

(b) Send this file to node1 and node2.

scp authorized_keys node1:.ssh/

scp authorized_keys node2:.ssh/

On All the Nodes:

chmod 600 ~/.ssh/authorized_keys

ssh node1 date

ssh node2 date

ssh node3 date

ssh node1.hingu.net date

ssh node2.hingu.net date

ssh node3.hingu.net date

ssh node1-prv date

ssh node2-prv date

ssh node3-prv date

Entered 'yes' and continued when prompted

Repeat the Above process for user grid:

Configure the Shared Storage for 11g R2 Grid Infrastructure and RAC Database:

Volume Group: grid

Physical Volume: /dev/sda5 (1^st extended partition on the last physical partition of local disk /dev/sda nas-server)

Logical Volumes: asmdisk01, asmdisk02, asmdisk03

a) Connect to the nas-server using: https://192.168.1.101:446 using openfiler<password>

b) Create the Volume group “grid” and created the two logical volumes asmdisk01 and asmdisk02 for ASM.

c) Assign iSCSI targets to these LUNs so that they can be discovered by the clients (cluster nodes node1, node2 and node3)

Here is the process I followed to create the 3^rd logical volume called asmdisk03.

Steps to Create 3^rd volume asmdisk03 of size 25GB.

(1) Clicked on ‘Add Volumes” link under the “Volumes” tab.

(2) Filled the appropriate values and press “create”

(3) The 3^rd Volume asmdisk03 was created.

(4) Assigned the iscsi-target to this newly created volume.

(a) Clicked on “iSCSI-Targets” line under the “Volumes” tab.

(b) Under the “Target Configuration” sub tab, entered the Value of asmdisk03 in the “Target IQN” box and then clicked “Add” as shown in the screen.

(d) Went to the “LUN Mapping” sub tab where the iscsi-target is assigned to the new Logical Volume created (asmdisk03)

(e) Clicked the “map” for the volume asmdisk03.

(f) Went to the “Network ACL” tab and allow all the 3 rac nodes to have access on this iscsi-target.

(5) Restarted the iscsi-target on the NAS (service iscsi-target restart)

(6) Restarted the iscsi service and make it start automatic during the restart of system (On All the RAC Nodes):

chkconfig --level 35 iscsi on

service iscsi restart

(7) Manually discovered the new lun and make them discover automatic at every startup of iscsi. This set of commands is required for every luns to be discovered on RAC nodes. I am showing it only for asmdisk03 here. (On All the RAC Nodes):

iscsiadm -m discovery -t sendtargets -p 192.168.1.101

iscsiadm -m node -T iqn.2006-01.com.openfiler:asmdisk03 -p 192.168.1.101 –l

iscsiadm -m node -T iqn.2006-01.com.openfiler:asmdisk03 -p 192.168.1.101 --op update -n node.startup -v automatic

Configuration Files:

/etc/sysconfig/network (nas-server)

NETWORKING=yes

HOSTNAME=nas-server

/etc/sysconfig/network-scripts/ifcfg-eth1 (nas-server):

DEVICE=eth1

BOOTPROTO=static

BROADCAST=192.168.1.255

HWADDR=00:22:6B:BF:43:D6

IPADDR=192.168.1.101

NETMASK=255.255.255.0

NETWORK=192.168.1.0

ONBOOT=yes

TYPE=Ethernet

/etc/rc.local (nas-server)

vgchange -ay

service iscsi-target restart

The screenshots of the above process:

The 3^rd Volume created.

Assigning the iSCSI Target iqn to lun asmdisk03.

Setting up Device Name Persistency: (On all the RAC nodes)

Because OCR and Voting disks are residing on ASM, this setup is no longer required unless these files are stored outside of ASM. In this Installation, the OCR and Voting Files are stored on ASM.

Configure the iSCSI disk Devises for Oracle ASM with ASMLib:

(a) Partition the Disk Devises (only from one node): Format these disks to contain a single primary partition to represent it at the time of creating ASM disk using oracleasm.

[root@node1 ~]# fdisk /dev/sdb

The number of cylinders for this disk is set to 24992.

There is nothing wrong with that, but this is larger than 1024,

and could in certain setups cause problems with:

1) software that runs at boot time (e.g., old versions of LILO)

2) booting and partitioning software from other OSs

(e.g., DOS FDISK, OS/2 FDISK)

Command (m for help): n

Command action

e extended

p primary partition (1-4)

Partition number (1-4): 1

First cylinder (1-24992, default 1):

Using default value 1

Last cylinder or +size or +sizeM or +sizeK (1-24992, default 24992):

Using default value 24992

Command (m for help): p

Disk /dev/sdb: 26.2 GB, 26206011392 bytes

64 heads, 32 sectors/track, 24992 cylinders

Units = cylinders of 2048 * 512 = 1048576 bytes

Device Boot Start End Blocks Id System

/dev/sdb1 1 24992 25591792 83 Linux

Command (m for help): w

The partition table has been altered!

Calling ioctl() to re-read partition table.

Syncing disks.

[root@node1 ~]# fdisk /dev/sdc

The number of cylinders for this disk is set to 25024.

There is nothing wrong with that, but this is larger than 1024,

and could in certain setups cause problems with:

1) software that runs at boot time (e.g., old versions of LILO)

2) booting and partitioning software from other OSs

(e.g., DOS FDISK, OS/2 FDISK)

Command (m for help): n

Command action

e extended

p primary partition (1-4)

Partition number (1-4): 1

First cylinder (1-25024, default 1):

Using default value 1

Last cylinder or +size or +sizeM or +sizeK (1-25024, default 25024):

Using default value 25024

Command (m for help): p

Disk /dev/sdc: 26.2 GB, 26239565824 bytes

64 heads, 32 sectors/track, 25024 cylinders

Units = cylinders of 2048 * 512 = 1048576 bytes

Device Boot Start End Blocks Id System

/dev/sdc1 1 25024 25624560 83 Linux

Command (m for help): w

The partition table has been altered!

Calling ioctl() to re-read partition table.

Syncing disks.

[root@node1 ~]# fdisk /dev/sdd

The number of cylinders for this disk is set to 25248.

There is nothing wrong with that, but this is larger than 1024,

and could in certain setups cause problems with:

1) software that runs at boot time (e.g., old versions of LILO)

2) booting and partitioning software from other OSs

(e.g., DOS FDISK, OS/2 FDISK)

Command (m for help): n

Command action

e extended

p primary partition (1-4)

Partition number (1-4): 1

First cylinder (1-25248, default 1):

Using default value 1

Last cylinder or +size or +sizeM or +sizeK (1-25248, default 25248):

Using default value 25248

Command (m for help): p

Disk /dev/sdd: 26.4 GB, 26474446848 bytes

64 heads, 32 sectors/track, 25248 cylinders

Units = cylinders of 2048 * 512 = 1048576 bytes

Device Boot Start End Blocks Id System

/dev/sdd1 1 25248 25853936 83 Linux

Command (m for help): w

The partition table has been altered!

Calling ioctl() to re-read partition table.

Syncing disks.

[root@node1 ~]#

(b) Refreshed the kernel on the remaining nodes with the latest partition table using partprobe.

[root@node1 ~]# partprobe

oracleasm-2.6.18-194.el5-2.0.5-1.el5

oracleasm-support-2.1.3-1.el5

oracleasm-2.6.18-194.el5xen-2.0.5-1.el5

oracleasm-2.6.18-194.el5PAE-2.0.5-1.el5

oracleasm-2.6.18-194.el5debug-2.0.5-1.el5

oracleasmlib-2.0.4-1.el5

(d) Configured the ASMLib (All the RAC nodes):

[root@node1 ~]# oracleasm configure –i

(e) Loaded the ASMLib Module (All the RAC nodes):

[root@node1 ~]# oracleasm init

(f) Created the ASM disks using oracleasm: (ONLY from one of the RAC nodes)

oracleasm createdisk DSK01 /dev/sdb1

oracleasm createdisk DSK02 /dev/sdc1

oracleasm createdisk DSK03 /dev/sdd1

oracleasm scandisks

oracleasm listdisks

(g) On the Remaining RAC nodes, simply scanned the ASM disks to instantiate these newly created disks

oracleasm scandisks

oracleasm listdisks

(h) Verified that these ASM disk can be discovered by ASM Libraries (oracleasmlib) on all the RAC Nodes during Installation of Grid Infrastructure.

/usr/sbin/oracleasm-discover 'ORCL:*'

[grid@node1 ~]$ /usr/sbin/oracleasm-discover 'ORCL:*'

Using ASMLib from /opt/oracle/extapi/32/asm/orcl/1/libasm.so

[ASM Library - Generic Linux, version 2.0.4 (KABI_V2)]

Discovered disk: ORCL:DSK01 [51183584 blocks (26205995008 bytes), maxio 512]

Discovered disk: ORCL:DSK02 [51249120 blocks (26239549440 bytes), maxio 512]

Discovered disk: ORCL:DSK03 [51707872 blocks (26474430464 bytes), maxio 512]

[grid@node1 ~]$

With this, the pre-Installation steps are completed successfully and are ready to install 11g R2 Grid Infrastructure software Next.

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