170 Delivering Continuity and Extreme Capacity with the IBM DB2 pureScale Feature
Validating dapl ...
Required minimum version and release for dapl: 2.0.25-(null)
Actual version of package: 2.0.32
Requirement matched.
Validating sg3_utils ...
Package (or file) found: sg3_utils
Requirement matched.
Validating sg_persist ...
Package (or file) found: /usr/bin/sg_persist
Requirement matched.
DBT3533I The db2prereqcheck utility has confirmed that all
installation prerequisites were met for DB2 database server with DB2
pureCluster feature. Version: "10.1.0.0".
3.4.2 Using the command line on a Linux environment
This section describes how to install a DB2 database with the DB2pureScale
feature by running db2_install.
To install a DB2 database with the DB2pureScale feature by running
db2_install, complete the following steps:
1. Create DB2 instance owner and group, for example, db2sdin1/db2iadm1, on
all the hosts in the cluster.
2. Create DB2 fence user and group, for example, db2sdfe1/db2fadm1, on all
the hosts in the cluster.
3. Run db2_install to install the DB2 pureScale database product on any host.
This host is referenced as the installation-initiating host.
4. On the installation-initiating host, run db2icrt to create a member and a
cluster caching facility. The db2icrt command copies the DB2 files to the
second host and then creates a member and a cluster caching facility.
Attention: The db2_install command is deprecated in a future Fix Pack
release. Use the db2_setup GUI installation.
Chapter 3. Implementation and setup 171
To install the DB2 pureScale feature using the command-line interface (CLII)
method, complete the following steps:
1. Log in as root on node101.
2. Go to the folder that contains the DB2 installer tar file. Extract the installer
files by running the following command:
tar -zxvf <DB2 10.1 pureScale feature installer tar file path>
3. Create the DB2 instance administrator group db2iadm1 and the DB2 fenced
group db2fadm1 by running the following commands:
groupadd –g 999 db2iadm1
groupadd –g 998 db2fadm1
4. Create the DB2 instance user db2sdin1 and DB2 fenced user db2sdfe1 by
running the following commands:
useradd –u 1004 –g db2iadm1 –m –d /home/db2sdin1 db2sdin1
useradd –u 1003 –g db2fadm1 –m –d /home/db2sdfe1 db2sdfe1
5. Go to the folder that was extracted, and run the following the command to
install the DB2 pureScale feature on the installation-initiating host:
db2_install –t /tmp/db2_install.trc –l /tmp/db2_install.log
This command installs the DB2 database with the DB2 pureScale feature to
the /opt/ibm/db2/V10.1/ default directory. Add the -b <DB2DIR> parameter
to the db2_install command to change the installation directory. The
installation directory must be the same on all hosts in your cluster.
In the command, the -t parameter specifies the full path of the installation
trace file. The -l parameter specifies the full path to the installation log file.
Although both parameters are optional, the installation trace and log files can
help DB2 diagnose installation problems in the unlikely event that they occur.
6. Run the /usr/local/bin/db2ls command to verify the installation.
Use the following syntax to create a DB2 instance with one DB2 member and
one CF on the installation-initiating host:
db2icrt –d –m <member_hostname> -mnet <member_netname> –cf
<cf_hostname> -cfnet <cf_netname> –instance_shared_dev <disk name>
-tbdev <tb disk name> -u <DB2 fence user name> <DB2 instance user
name>

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