HP Serviceguard for Linux Version A.11.20.00 Deployment Guide, August 2012

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Introduction ......................................................................................................................................... 3

Purpose of this Document .................................................................................................................. 3

What Has Changed in the Serviceguard A.11.20.00 Installation Procedure .......................................... 3

Scope ............................................................................................................................................. 3

Audience ........................................................................................................................................ 3

Installation and Configuration Overview ............................................................................................. 4

Terms and Definitions ....................................................................................................................... 4

Related Documents ........................................................................................................................... 4

What to Order .................................................................................................................................... 5

Getting Started .................................................................................................................................... 5

Hardware Setup .............................................................................................................................. 5

Network Planning ............................................................................................................................ 6

Gather Required Software .................................................................................................................... 7

1. Linux OS Distribution ............................................................................................................... 7

2. Kernel Errata........................................................................................................................... 7

3. Serviceguard for Linux DVD ...................................................................................................... 8

4. Serviceguard for Linux Patches .................................................................................................. 8

5. Java JDK ................................................................................................................................ 8

6. Serviceguard for Linux Installation and Configuration Scripts ........................................................ 8

7. Serviceguard for Linux Contributed Toolkit Suite .......................................................................... 9

OS Installation ..................................................................................................................................... 9

Linux OS Distribution ........................................................................................................................ 9

Copy Downloaded Software to Servers .............................................................................................. 9

Kernel Errata ................................................................................................................................... 9

Linux Post-OS Installation ................................................................................................................. 10

Storage Array Configuration ............................................................................................................... 11

Preparing the Servers ......................................................................................................................... 12

Configuring the Lock LUN and Shared Volumes ................................................................................. 12

Create the Partitions.................................................................................................................... 12

Create the Logical Volumes.......................................................................................................... 13

Backup the Volume Groups ......................................................................................................... 14

Import and Configure the Volume Groups on the Second Server ...................................................... 14

Network Configuration ................................................................................................................... 14

Configure Network Bonding ........................................................................................................ 14

Serviceguard for Linux and Related Software Installation ........................................................................ 16

Java JDK ....................................................................................................................................... 16

Tomcat.......................................................................................................................................... 16

Serviceguard for Linux Installation Script ........................................................................................... 16

HP Serviceguard for Linux Version

A.11.20.00 Deployment Guide

Summary of content (24 pages)

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HP Serviceguard for Linux Version A.11.20.00 Deployment Guide Introduction ......................................................................................................................................... 3 Purpose of this Document .................................................................................................................. 3 What Has Changed in the Serviceguard A.11.20.00 Installation Procedure .......................................... 3 Scope ................................
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Serviceguard for Linux Contributed Toolkit Suite................................................................................. 18 Uninstalling Serviceguard for Linux ...................................................................................................... 18 Rules ............................................................................................................................................ 18 Serviceguard for Linux Configuration ..................................................
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Introduction Purpose of this Document The HP Serviceguard for Linux Deployment Guide provides step-by-step instructions to administrators for ordering, installing, and configuring a Serviceguard cluster on two Linux hosts. Using this deployment guide, administrators can install and configure HP Serviceguard for Linux quickly and easily. This document pertains to specific hardware and software, but can easily be leveraged for use in deploying HP Serviceguard for Linux in different environments.
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Installation and Configuration Overview This section outlines the steps covered in this deployment guide. 1. What to Order 2. Getting Started a. Hardware Setup b. Network Planning 3. Gather Required Software 4. OS Installation 5. Storage Array Configuration 6. Preparing the Servers a. Fibre Channel Driver b. Shared Storage Configuration c. Network Configuration 7. Serviceguard for Linux and Related Software Installation 8. Serviceguard for Linux Configuration a. Server Configuration b.
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• www.hp.com/go/hpux-serviceguard-docs → HP Serviceguard Solutions for Linux – Managing HP Serviceguard for Linux – HP Serviceguard for Linux Version A.11.20.00 Release Notes – Serviceguard Toolkit for Oracle A.05.01.00 Securing Serviceguard What to Order This section recommends the hardware and software to order for a two-node Serviceguard for Linux cluster. It specifies the minimum (and recommended) hardware requirements for high availability.
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Tip: Do not connect the Fibre Channel cables to each server until after the OS has been installed on each server, otherwise the OS installation process may attempt to place the boot image on the external storage device. Network Planning The minimum network configuration requires two network connections (eth2 and eth3) configured as a bonded pair running a heartbeat and the public network connections from each server. Each network connection should be plugged into separate switches (see Figure 1).
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Table 2 shows the list of IP addresses and hostnames needed for deploying a Serviceguard for Linux cluster. Column 2 shows the addresses used for demonstration purposes in the step-by-step instructions. You should fill in Column 3 with the addresses for your network environment. Field Example Node 1 Static IP Address 16.89.84.245 Node 1 Hostname adam.cup.hp.com Node 1 Private heartbeat network IP Address Not used in this example Node 2 Static IP Address 16.89.84.
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2. If you choose to use the new kernel errata that has been certified by Serviceguard for Linux, download it from http://rhn.redhat.com using your subscription service login, or if you use some other update process such as YUM, update the servers after the operating systems have been installed. 3. Serviceguard for Linux DVD When you purchase Serviceguard for Linux from Hewlett-Packard, you should receive a DVD (or image) containing the software.
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7. Serviceguard for Linux Contributed Toolkit Suite The optional Serviceguard for Linux package included in these instructions requires the Serviceguard for Linux Apache Toolkit, which is part of the HP Serviceguard for Linux Free Toolkit Suite, available at no charge from HP. To download this package: 1. Go to http://www.hp.com/go/softwaredepot/ha. 2. Search for “Serviceguard for Linux Contributed Toolkit Suite”. 3. Click “Receive for Free >>”. 4. Select “Red Hat Enterprise Linux 5, SG A.11.20.
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2. Compare the current kernel version, for example 2.6.18-274.el5, to the downloaded kernel version to verify that the downloaded kernel is more recent. 3. Change to the directory containing the kernel rpms. For example: cd /tmp/sglx_install 4. Install the rpms. For example: rpm –ivh kernel-2.6.18-274.el5.rpm rpm –ivh kernel-devel-2.6.18-274.el5.rpm 5. Edit (or check) the grub.conf file so that it boots the appropriate kernel.
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The Serviceguard for Linux SNMP subagent requires the lm_sensors and net-snmp packages. lm_sensors must be installed before net-snmp. 1. To check if lm_sensors is installed, run the following command: rpm –qa | fgrep lm_sensors 2. If not installed, locate the lm_sensors rpm on the DVD under the Server directory, and install it. For example: rpm –ivh lm_sensors-2.10.7-9.el5.x86_64.rpm 3.
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Figure 2. Wiring the servers to the storage controllers for redundancy Preparing the Servers In preparation for the Serviceguard for Linux installation and configuration steps, the two servers need to be configured to meet the minimum requirements for Serviceguard in terms of redundant paths to the external storage server, shared storage configuration and network redundancy.
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partitions (Hex code 8e). For each volume, you will create a new (n) partition (Partition #1), set the type (t), and save (w) the settings for the partition. The steps in this section are to be executed on one server only. 1.
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Execute the following commands to create a logical volume for the ws package: pvcreate -f /dev/mapper/mpath1p1 vgcreate /dev/vgws /dev/mapper/mpath1p1 lvcreate -L 180M -n lvol1 vgws mke2fs -j /dev/vgws/lvol1 mkdir /ws vgchange -a n vgws NOTE: The size specified in the lvcreate command, specified by the “-L” option, is related to the size of the physical partition created on the storage device.
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These steps must be performed on each server, using the appropriate IP and MAC addresses.. In this example, we show the content of the 3 configuration files in the /etc/sysconfig/network-scripts directory required to create the bonded interface. The ifcfg-eth# files may already exist, but the ifcfgbond0 file probably does not exist. 1. Change directory: cd /etc/sysconfig/network-scripts 2.
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For example: /etc/sysconfig/network-scripts/ifdown-eth: line 101: /sys/class/net/bond0/bonding/slaves: No such file or Directory 7. To verify the bond configuration, check the /proc/net/bonding/bond0 file. This listing shows two slave interfaces with eth2 as the currently active slave. more /proc/net/bonding/bond0 Ethernet Channel Bonding Driver: v3.4.
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Manager. Instructions for installing the prerequisites are provided earlier in this deployment guide. If not already installed, you will be prompted to install these packages for the installation to complete successfully. This can be done in a separate terminal window. You will also be prompted at least once to verify or install Java JDK 6. If you have already installed Java, just type “yes” to continue.
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#rpm -ihv serviceguard-A.11.20.00-0.rhel6.x86_64.rpm Install the Serviceguard SNMP RPM #rpm -ihv cmsnmpd-A.03.00-0.rhel6.x86_64.rpm Install the Serviceguard Providers RPM #rpm -ihv sgproviders-A.04.00.00-0.rhel6.x86_64.rpm The above procedure must be repeated for all the nodes that are to be part of the cluster. Quorum server installation: On Red Hat Enterprise Linux 5.x #rpm –ihv qs-A.04.00.00-0.rhel5.i386.rpm On Red Hat Enterprise Linux 6.x #rpm –ihv qs-A.04.00.00-0.rhel6.x86_64.
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Serviceguard System Configuration Automation script User will configure the following: Enabling Serviceguard command. To allow the creation of a Serviceguard configuration, you should complete the following steps on all cluster nodes before running any Serviceguard commands: 1. Make sure the root user’s path includes the Serviceguard executables. This can be done by adding the following environment variable definition to the root user’s profile for Red Hat: PATH=$PATH:/usr/local/cmcluster/bin 2.
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network resolution service you are using (such as DNS, NIS, or LDAP) must be able to resolve each of their primary addresses on each of those networks to the primary hostname of the node in question. You must define name resolution in each node’s /etc/hosts file, rather than rely solely on a service such as DNS. Configure the name service switch to consult the /etc/hosts file before other services. Consider a two node cluster (eve and adam) with two private subnets and a public subnet.
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• • Go to the Network tab, Enter in the “Subnets” section, for example: Subnet: 16.89.84.128, Type: Heartbeat Enter in the “Select Subnet Configuration” section, for example: Node Network Address adam bond0 16.89.84.245 eve bond0 16.89.84.247 Go to the Lock tab For the Cluster Lock Type, Select “Lock Lun” Enter the Lock Lun Path for each node, for example: Node Lock Lun Path adam /dev/mapper/mpath0p1 eve /dev/mapper/mpath0p1 Select Finish.
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7. Choose additional modules for extra Serviceguard capabilities. 8. The modules in the Required Modules table are set by default and cannot be changed. In the Select Modules table, you can select additional modules (or deselect the default recommended selections) by clicking the check box next to each module that you want to add (or remove) from the package. 9. Click [Next >>].
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NOTE: You may need to start the cluster if it is not already running. To run the cluster, go the “Administration” menu and select “Run Cluster”. Create Sample html content for the Package 1. Login to the cluster node that is currently running the “ws” package. 2. Create a sample content file (this command should be input on one line): echo “ Sample Serviceguard package: ws ” > /ws/index.
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Problem: Serviceguard Manager link not shown in HPSMH or “Service Temporarily Available” message when SGMgr link is clicked. Serviceguard Manager Tomcat5 or 6 , JDK 1.6 or later and Tomcat bridge rpms are not installed Possible Remedy: Users need to install required versions of JAVA and Tomcat and run easy install script. Support of other distributions and architectures HP Serviceguard for Linux, version A.11.20.