This document shows the step by step process of installing and setting up 3-node Oracle 10gR2 RAC. This setup uses openfiler as a Shared Storage Solution.
Hardware Used in setting up 3-node 10g R2 RAC using iSCSI SAN (Openfiler):
· Total Machines: 4 (3 for RAC nodes + 1 for NAS)
· 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: 10 (9 for RAC nodes (3 for each node) and one for Shared Storage)
· 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)
· 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 10g R2 (10.2.0.1)
· Oracle RAC: Oracle RDBMS 10g R2 (10.2.0.1)
Operating System: Oracle Enterprise Linux 5.5 (2.6.18-194.el5PAE):
Server: All the RAC Nodes
Oracle Clusterware:
Server: All the RAC Nodes
ORACLE_BASE: /u01/app/oracle
ORACLE_HOME: /u01/app/oracle/crs
Owner: oracle (Primary Group: oinstall, Secondary Group: dba)
Permissions: 775
OCR/Voting Disk Storage Type: Raw Devices
Oracle Inventory Location: /u01/app/oraInventory
Oracle Database Software (RAC 10.2.0.1) for ASM_HOME:
Server: All the RAC Nodes
ORACLE_BASE: /u01/app/oracle
ORACLE_HOME: /u01/app/oracle/asm
Owner: oracle (Primary Group: oinstall, Secondary Group: dba)
Permissions: 775
Oracle Inventory Location: /u01/app/oraInventory
Listener: LISTENER (TCP:1521)
Oracle Database Software (RAC 10.2.0.1) for DB_HOME:
Server: All the RAC Nodes
ORACLE_BASE: /u01/app/oracle
ORACLE_HOME: /u01/app/oracle/db
Owner: oracle (Primary Group: oinstall, Secondary Group: dba)
Permissions: 775
Oracle Inventory Location: /u01/app/oraInventory
Database Name: labdb
Listener: LAB_LISTENER (TCP:1530)
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
|
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
|
This setup is divided into below 2 main categories:
Pre-installation task:
· 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 Clusterware 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.
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 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 Ã
libstdc++44-devel
Development à Java Development
Development à Legacy Software Development
Servers à Checked All the servers
Servers à Legacy Network Server Ã
bootparamd, rsh-server, rusers, rusers-server, telnet-server
Servers à Network Servers Ã
dhcp, dhcpv6, dnsmasq, ypserv
Servers à Servers Configuration Tools Ã
Checked All
Base System à Administration Tools Ã
Checked All
Base System à Base Ã
device-mapper-multipath, iscsi-initiator-utils,
Base System à Legacy Software Support Ã
openmotif22
Base System à System Tools Ã
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
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)
· 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
binutils-2.17.50.0.6-2.el5
compat-libstdc++-33-3.2.3-61
elfutils-libelf-0.125-3.el5
elfutils-libelf-devel-0.125
gcc-4.1.1-52
gcc-c++-4.1.1-52
glibc-2.5-12
glibc-common-2.5-12
glibc-devel-2.5-12
glibc-headers-2.5-12
libaio-0.3.106
libaio-devel-0.3.106
libgcc-4.1.1-52
libstdc++-4.1.1
libstdc++-devel-4.1.1-52.e15
make-3.81-1.1
sysstat-7.0.0
unixODBC-2.2.11
unixODBC-devel-2.2.11
libXp-1.0.0-8
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 \
gcc gcc-c++ glibc glibc-common glibc-devel glibc-headers libaio libaio-devel \
libgcc libstdc++ libstdc++-devel make sysstat unixODBC unixODBC-devel libXp
I had to install below extra RPMs.
cvuqdisk à Available on Clusterware 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%]
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
(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
(c) Public Network:
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
(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 localhost.localdomain localhost
::1 localhost6.localdomain6 localhost6
##=======================================
# Pulic Network
##=======================================
192.168.2.1 node1.hingu.net node1
192.168.2.2 node2.hingu.net node2
192.168.2.3 node3.hingu.net node3
##=======================================
# VIPs
##=======================================
192.168.2.51 node1-vip.hingu.net node1-vip
192.168.2.52 node2-vip.hingu.net node2-vip
192.168.2.53 node3-vip.hingu.net node3-vip
##=======================================
# 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 localhost.localdomain localhost
::1 localhost6.localdomain6 localhost6
##=======================================
# Pulic Network
##=======================================
192.168.2.1 node1.hingu.net node1
192.168.2.2 node2.hingu.net node2
192.168.2.3 node3.hingu.net node3
##=======================================
# VIPs
##=======================================
192.168.2.51 node1-vip.hingu.net node1-vip
192.168.2.52 node2-vip.hingu.net node2-vip
192.168.2.53 node3-vip.hingu.net node3-vip
##=======================================
# 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 localhost.localdomain localhost
::1 localhost6.localdomain6 localhost6
##=======================================
# Pulic Network
##=======================================
192.168.2.1 node1.hingu.net node1
192.168.2.2 node2.hingu.net node2
192.168.2.3 node3.hingu.net node3
##=======================================
# VIPs
##=======================================
192.168.2.51 node1-vip.hingu.net node1-vip
192.168.2.52 node2-vip.hingu.net node2-vip
192.168.2.53 node3-vip.hingu.net node3-vip
##=======================================
# Private Network for Cluster Interconnect
##=======================================
192.168.0.1 node1-prv
192.168.0.2 node2-prv
192.168.0.3 node3-prv
##=======================================
##=======================================
userdel oracle
groupdel oinstall
groupdel dba
groupadd -g 1000 oinstall
groupadd -g 1031 dba
useradd -u 1101 -g oinstall -G dba oracle
mkdir -p /u01/app/oracle
chown –R oracle:oinstall /u01/app/oracle
chmod -R 775 /u01
passwd oracle
This package is located in the rpm directory on Clusterware Media and needs to be installed after the group oinstall is created. In my case, as this was a fresh install of 10g R2 on a new machines, 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-1.0.1-1.rpm
[root@node1 rpm]# pwd
/home/oracle/10gr2/clusterware/rpm
[root@node1 rpm]# export CVUQDISK_GRP=oinstall
[root@node1 rpm]# echo $CVUQDISK_GRP
oinstall
[root@node1 rpm]# rpm -ivh rpm –ivh cvuqdisk-1.0.1-1.rpm
Preparing... ########################################### [100%]
1:cvuqdisk ########################################### [100%]
[root@node1 rpm]# rpm -qa | grep cvuqdisk
cvuqdisk-1.0.1-1
[root@node1 rpm]#
(a) Set the umask to 022 by putting below line into the oracle’s .bash_profile file:
umask 022
Then, executed the .bash_profile and verified that the correct value of umask is displayed.
[orale@node1 ~]$ . .bash_profile
[oracle@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
(c) Suppressed the Terminal output on STDOUT and STDERR to prevent Installation errors:
Modified the file ~/.bashrc (or .cshrc for C shell) with below entry.
Bourne, Bash, or Korn shell:
if [ -t 0 ]; then
stty intr ^C
fi
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
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
fi
fi
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
(e) Set the below Kernel Parameters with recommended range in /etc/sysctl.conf. This was already set with the installation of oracle-validated package. I had to uncomment the lines related to 10g parameters and comment the same parameters for 11g. After the modification, ran the sysctl –p to enable the changes..
/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.
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
Configure the Shared Storage for 10g R2 Clusterware and RAC Database:
Volume Group: grid
Physical Volume: /dev/sda5 (1st extended partition on the last physical partition of local disk /dev/sda nas-server)
Logical Volumes:
asmdisk02, asmdisk03 ß For ASM Disk (1 for FRA and the other for DATA respectively)
ocrdisk01, ocrdisk02 ß for OCR disks (1 gb each)
votingdisk01, votingdisk02, votingdisk03 ß for Voting Disks (1 gb each)
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 3rd logical volume called asmdisk03.
Steps to Create 2nd 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 3rd 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.
(c) Clicked on the “update” on the same screen with all the default values selected.
(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. Below commands are for asmdisk03. (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
For all the Voting and OCRs Luns
iscsiadm -m node -T iqn.2006-01.com.openfiler:votingdisk01 -p 192.168.1.101 -l
iscsiadm -m node -T iqn.2006-01.com.openfiler:votingdisk01 -p 192.168.1.101 --op update -n node.startup -v automatic
iscsiadm -m node -T iqn.2006-01.com.openfiler:votingdisk02 -p 192.168.1.101 -l
iscsiadm -m node -T iqn.2006-01.com.openfiler:votingdisk02 -p 192.168.1.101 --op update -n node.startup -v automatic
iscsiadm -m node -T iqn.2006-01.com.openfiler:votingdisk03 -p 192.168.1.101 -l
iscsiadm -m node -T iqn.2006-01.com.openfiler:votingdisk03 -p 192.168.1.101 --op update -n node.startup -v automatic
iscsiadm -m node -T iqn.2006-01.com.openfiler:ocrdisk01 -p 192.168.1.101 -l
iscsiadm -m node -T iqn.2006-01.com.openfiler:ocrdisk02 -p 192.168.1.101 -l
iscsiadm -m node -T iqn.2006-01.com.openfiler:ocrdisk01 -p 192.168.1.101 --op update -n node.startup -v automatic
iscsiadm -m node -T iqn.2006-01.com.openfiler:ocrdisk02 -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 3rd Volume created.
Assigning the iSCSI Target iqn to lun asmdisk03.
Partition the scsi disks (RAC Nodes):
(a) Partition all the scsi disks from one of the RAC nodes to contain each disk a single partition using fdisk.
[root@node1 ~]# fdisk /dev/sdg
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel. Changes will remain in memory only,
until you decide to write them. After that, of course, the previous
content won't be recoverable.
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
Command (m for help): p
Disk /dev/sdg: 1073 MB, 1073741824 bytes
34 heads, 61 sectors/track, 1011 cylinders
Units = cylinders of 2074 * 512 = 1061888 bytes
Device Boot Start End Blocks Id System
Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-1011, default 1):
Using default value 1
Last cylinder or +size or +sizeM or +sizeK (1-1011, default 1011):
Using default value 1011
Command (m for help): p
Disk /dev/sdg: 1073 MB, 1073741824 bytes
34 heads, 61 sectors/track, 1011 cylinders
Units = cylinders of 2074 * 512 = 1061888 bytes
Device Boot Start End Blocks Id System
/dev/sdg1 1 1011 1048376+ 83 Linux
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
After Partitioning all the scsi disks, the final partition table looks like below in my case.
[root@node1 10g_files]# fdisk -l
Disk /dev/sda: 160.0 GB, 160000000000 bytes
255 heads, 63 sectors/track, 19452 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 19452 156143767+ 8e Linux LVM
Disk /dev/sdb: 1073 MB, 1073741824 bytes
34 heads, 61 sectors/track, 1011 cylinders
Units = cylinders of 2074 * 512 = 1061888 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 1011 1048376+ 83 Linux
Disk /dev/sdd: 10.5 GB, 10502537216 bytes
64 heads, 32 sectors/track, 10016 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Device Boot Start End Blocks Id System
/dev/sdd1 1 10016 10256368 83 Linux
Disk /dev/sdf: 1073 MB, 1073741824 bytes
34 heads, 61 sectors/track, 1011 cylinders
Units = cylinders of 2074 * 512 = 1061888 bytes
Device Boot Start End Blocks Id System
/dev/sdf1 1 1011 1048376+ 83 Linux
Disk /dev/sde: 20.9 GB, 20971520000 bytes
64 heads, 32 sectors/track, 20000 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Device Boot Start End Blocks Id System
/dev/sde1 1 20000 20479984 83 Linux
Disk /dev/sdc: 1073 MB, 1073741824 bytes
34 heads, 61 sectors/track, 1011 cylinders
Units = cylinders of 2074 * 512 = 1061888 bytes
Device Boot Start End Blocks Id System
/dev/sdc1 1 1011 1048376+ 83 Linux
Disk /dev/sdg: 1073 MB, 1073741824 bytes
34 heads, 61 sectors/track, 1011 cylinders
Units = cylinders of 2074 * 512 = 1061888 bytes
Device Boot Start End Blocks Id System
/dev/sdg1 1 1011 1048376+ 83 Linux
Disk /dev/sdh: 1073 MB, 1073741824 bytes
34 heads, 61 sectors/track, 1011 cylinders
Units = cylinders of 2074 * 512 = 1061888 bytes
Device Boot Start End Blocks Id System
/dev/sdh1 1 1011 1048376+ 83 Linux
(b) Refreshed the kernel on the remaining nodes with the latest partition table using partprobe.
[root@node1 ~]# partprobe
(a) Placed the below line in the /etc/scsi_id.config
options=-g
(b) Got the scsi disk mappings. (from one of the RAC nodes)
[root@node1 ~]# ls -la /dev/disk/by-path/ | grep openfiler | awk '{ print $9 $10 $11 }'
ip-192.168.1.101:3260-iscsi-iqn.2006-01.com.openfiler:datadisk01-lun-0->../../sde
ip-192.168.1.101:3260-iscsi-iqn.2006-01.com.openfiler:datadisk01-lun-0-part1->../../sde1
ip-192.168.1.101:3260-iscsi-iqn.2006-01.com.openfiler:fradisk01-lun-0->../../sdd
ip-192.168.1.101:3260-iscsi-iqn.2006-01.com.openfiler:fradisk01-lun-0-part1->../../sdd1
ip-192.168.1.101:3260-iscsi-iqn.2006-01.com.openfiler:ocrdisk01-lun-0->../../sdg
ip-192.168.1.101:3260-iscsi-iqn.2006-01.com.openfiler:ocrdisk01-lun-0-part1->../../sdg1
ip-192.168.1.101:3260-iscsi-iqn.2006-01.com.openfiler:ocrdisk02-lun-0->../../sdh
ip-192.168.1.101:3260-iscsi-iqn.2006-01.com.openfiler:ocrdisk02-lun-0-part1->../../sdh1
ip-192.168.1.101:3260-iscsi-iqn.2006-01.com.openfiler:votingdisk01-lun-0->../../sdc
ip-192.168.1.101:3260-iscsi-iqn.2006-01.com.openfiler:votingdisk01-lun-0-part1->../../sdc1
ip-192.168.1.101:3260-iscsi-iqn.2006-01.com.openfiler:votingdisk02-lun-0->../../sdb
ip-192.168.1.101:3260-iscsi-iqn.2006-01.com.openfiler:votingdisk02-lun-0-part1->../../sdb1
ip-192.168.1.101:3260-iscsi-iqn.2006-01.com.openfiler:votingdisk03-lun-0->../../sdf
ip-192.168.1.101:3260-iscsi-iqn.2006-01.com.openfiler:votingdisk03-lun-0-part1->../../sdf1
(c) Got SCSI IDs for all the OCRs and Voting Disks using scsi_id.
[root@node1 ~]# scsi_id -g -s /block/sdg/sdg1
14f504e46494c450073564b3158472d7943766d2d4c736459
[root@node1 ~]# scsi_id -g -s /block/sdh/sdh1
14f504e46494c4500786839656e792d75704b422d545a6e70
[root@node1 ~]#
[root@node1 ~]# scsi_id -g -s /block/sdc/sdc1
14f504e46494c45004d74494743652d384176312d5776594d
[root@node1 ~]# scsi_id -g -s /block/sdb/sdb1
14f504e46494c45007132726b4d4d2d6274616f2d33753456
[root@node1 ~]# scsi_id -g -s /block/sdf/sdf1
14f504e46494c450046305855714e2d324956712d674f4132
[root@node1 ~]#
(d) Created the file /etc/udev/rules.d/99-crs.rules to label the scsi devices with the appropriate name so that after reboot of machine their name remain persistent every time.
KERNEL=="sd?1", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -s %p", RESULT=="14f504e46494c450073564b3158472d7943766d2d4c736459" , NAME="ocrdisk01", OWNER="root", GROUP="oinstall", MODE="0640"
KERNEL=="sd?1", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -s %p", RESULT=="14f504e46494c4500786839656e792d75704b422d545a6e70" , NAME="ocrdisk02", OWNER="root", GROUP="oinstall", MODE="0640"
KERNEL=="sd?1", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -s %p", RESULT=="14f504e46494c45004d74494743652d384176312d5776594d" , NAME="votingdisk01", OWNER="oracle", GROUP="oinstall", MODE="0640"
KERNEL=="sd?1", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -s %p", RESULT=="14f504e46494c45007132726b4d4d2d6274616f2d33753456" , NAME="votingdisk02", OWNER="oracle", GROUP="oinstall", MODE="0640"
KERNEL=="sd?1", BUS=="scsi", PROGRAM=="/sbin/scsi_id -g -s %p", RESULT=="14f504e46494c450046305855714e2d324956712d674f4132" , NAME="votingdisk03", OWNER="oracle", GROUP="oinstall", MODE="0640"
(e) Reloaded the udev rules and started the udev services to make the changes effective.
udevcontrol reload_rules
start_udev
(f) Verified that these disks now labeled appropriately
(g) Created the Raw Bindings for OCR and Voting Devices (On All the RAC Nodes).
Placed the below lines into the /etc/sysconfig/rawdevices
# raw device bindings
# format: <rawdev> <major> <minor>
# <rawdev> <blockdev>
# example: /dev/raw/raw1 /dev/sda1
# /dev/raw/raw2 8 5
/dev/raw/raw1 /dev/ocrdisk01
/dev/raw/raw2 /dev/ocrdisk02
/dev/raw/raw3 /dev/votingdisk01
/dev/raw/raw4 /dev/votingdisk02
/dev/raw/raw5 /dev/votingdisk03
Change the permissions and ownership of the raw devices as shown below.
chown root:oinstall /dev/raw/raw1
chown root:oinstall /dev/raw/raw2
chown oracle:oinstall /dev/raw/raw3
chown oracle:oinstall /dev/raw/raw4
chown oracle:oinstall /dev/raw/raw5
chmod 640 /dev/raw/raw1
chmod 640 /dev/raw/raw2
chmod 640 /dev/raw/raw3
chmod 640 /dev/raw/raw4
chmod 640 /dev/raw/raw5
Restart the service rawdevices on all the nodes.
service rawdevices restart
Because the ownerships and permissions on the raw devices get reset to root on every reboot, the above lines were placed into /etc/rc.local to set the permissions back to oracle user after the reboot. (ON all the RAC Nodes):
/etc/rc.local:
[root@node1 sysconfig]# cat /etc/rc.local
#!/bin/sh
#
# This script will be executed *after* all the other init scripts.
# You can put your own initialization stuff in here if you don't
# want to do the full Sys V style init stuff.
touch /var/lock/subsys/local
chown root:oinstall /dev/raw/raw1
chown root:oinstall /dev/raw/raw2
chown oracle:oinstall /dev/raw/raw3
chown oracle:oinstall /dev/raw/raw4
chown oracle:oinstall /dev/raw/raw5
chmod 640 /dev/raw/raw1
chmod 640 /dev/raw/raw2
chmod 640 /dev/raw/raw3
chmod 640 /dev/raw/raw4
chmod 640 /dev/raw/raw5
Configure the iSCSI disk Devices for Oracle ASM with ASMLib:
(a) Verified that the below RPMs are installed before configuring the ASM driver.
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
(b) Configured the ASMLib (All the RAC nodes):
Provide the oracleasm owner “oracle” and group “oinstall” while configuring the oracleasm.
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 DATADSK01 /dev/sdd1
oracleasm createdisk FRADSK02 /dev/sde1
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 Creation of ASM Disks.
Connected as “oracle” user and ran the below command
/usr/sbin/oracleasm-discover 'ORCL:*'
[oracle@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:DATADSK01 [40959968 blocks (20971503616 bytes), maxio 512]
Discovered disk: ORCL:FRADSK01 [20512736 blocks (10502520832 bytes), maxio 512]
[oracle@node1 ~]#
With this, the pre-Installation steps are completed successfully and are ready to install 10g R2 Clusterware software Next.
No comments:
Post a Comment