Updating Load Balancer
Obtaining an update You can obtain the Edge Components fix pack for the
AIX, HP-UX, Linux, Solaris Operating System, or Microsoft Windows operating
systems in the following mediums:
- Product CDs for newly supported operating systems.
- Downloadable fix packs for existing installations on operating systems
that were previously supported.
For information about supported operating systems, refer to the IBM support
site for WebSphere Application Server
detailed system requirements.
You can find the link to the refresh packs or fix packs for Edge Components
in the IBM support site's Recommended
downloads for WebSphere Application Server.
- Find the corrective service release to which you are upgrading and follow
the link to the download site.
- Follow the instructions on the site to download the Edge Components refresh
pack.
Updating Load Balancer for AIX, HP-UX, Linux, and Solaris operating
systems
Uninstall previous versions of Load Balancer
Before installing the refresh or fix pack, stop and uninstall any existing
versions of Load Balancer that are earlier than the version to which you are
upgrading.
- Go to a command prompt with root authority.
- Backup any files to another directory that you created and placed in the
Load Balancer install directory. Also, consider saving any Load Balancer configuration
scripts.
- Stop the Load Balancer Executor by using the following command:
dscontrol executor stop
The Load Balancer Executor can still be running
even if dsserver is stopped. If you receive a message that dsserver is not
running, start dsserver and then issue the command again.
- Stop dsserver by using the following command:
dsserver stop
- Uninstall all of the Load Balancer packages using the system-specific
commands in the table that follows.
Table 4. System-specific commands to uninstall Load Balancer
System-specific commands to uninstall
Load Balancer |
Platform |
Commands |
AIX |
Uninstall all of the Load Balancer product packages
with the following command:
installp -u ibmlb
|
HP-UX |
Uninstall all of the Load Balancer product packages
with the following command:
swremove ibmlb
|
Linux |
- To check for Load Balancer or related packages that were previously installed,
use the following command:
rpm -qa | grep ibmlb
- Uninstall each Load Balancer package. Use the following command:
rpm -e package_name where package_name is the individual Load Balancer package name.
Note:
To uninstall individual packages, remove the packages
in the reverse order in which they were installed. |
Solaris |
- To check for Load Balancer or related packages that were previously installed,
use the following command:
pkginfo | grep ibmlb
- Uninstall each Load Balancer package. Use the following command:
pkgrm package_name where package_name is the individual Load Balancer package name. |
Installing the Load Balancer refresh pack or fix pack
If you do not have Load Balancer installed, you are only required to install
the license file for Load Balancer, which is lb70Full.LIC, prior to installing
a refresh or fix pack. You can obtain the license by installing the license
package for Load Balancer.
To install a fix or refresh pack:
- Go to a command prompt with root authority.
- Obtain the Load Balancer refresh or fix pack and place it in a temporary
directory.
- Uncompress and untar the build package. This results in a number of separate
file sets.
- Install the software using the system-specific commands in the table that
follows. Refer to the list of packages for
the order in which to install the file sets.
Table 5. System-specific commands to install an refresh or fix pack
System-specific commands to install an
refresh or fix pack |
System |
Commands |
AIX |
- Generate a .toc file, if not already there, by issuing the command:
inutoc
- Install the packages for Load Balancer. For example, to install the base
package from the current directory, issue the following command:
installp -acXd . ibmlb.base.rte
|
HP-UX |
swinstall -s /source package_name where source is
the directory for the location of the package and package_name is the name of the package.
For example, to install the base package
from the current directory, issue the following command:
swinstall -s /lb ibmlb.base
|
Linux |
rpm -iv package_name where package_name is the name of the package.
For example, the following
command installs all of the packages for Load Balancer when the packages reside
in the current directory:
rpm -iv ibmlb*.rpm
Note:
You
can use the -nodeps option to successfully install all of
the packages in any order. |
Solaris |
pkgadd -d pathname package_name where pathname is
the directory for the location of the package and package_name is the name of the package.
For example, to install the administration
package from the current directory, issue the following command:
pkgadd -d . ibmlbadm
|
- Restore any configuration files and the start scripts that you saved or
modified during a previous uninstall.
This table lists all of the packages that are delivered with Edge Components
and their required order of installation. Install the packages that are included
in the refresh or fix pack according to the order that is specified in the
following table.
Note:
Not all of the packages listed here are delivered
with the refresh or fix pack. Update only the packages that are delivered
with the refresh or fix pack and that were previously installed on your system.
Table 6. List of packages
List of packages |
Components installed |
Update the packages (listed generically)
in this order |
- Dispatcher
- Content Based Routing
- Site Selector
- Cisco CSS Controller
- Nortel Alteon Controller
- Metric Server
- Load Balancer Documentation
|
- Base
- Administation
- License
- Device Driver (AIX only)
- LB component(s)
- Metric Server
- Load Balancer Documentation (lang)
|
Edge Components Documentation |
doc-lang |
Updating Load Balancer for Windows operating systems
Use the setup program for Edge Components to upgrade as follows
- To prevent the currently installed Load Balancer from starting, edit any
start scripts that you have created to temporarily suppress any commands that
will start Load Balancer upon reboot.
- Ensure that the Load Balancer service is set as Manual.
- Restart your Windows machine.
- Download the Edge Components refresh or fix pack.
- Use the Add/Remove programs option in the Windows control panel to uninstall
the current Load Balancer component, if present.
- Run the installation program by doing one of the following actions:
- From a command prompt:
- Change to the /lb directory and enter setup.
- For a refresh pack, change to the /lb directory and enter setup. For a
Load balancer fix pack, unzip the downloaded package to a folder and enter
setup from that folder.
- From the Start menu:
- Click Run.
- Click Browse.
- To install Caching Proxy and Load Balancer, or only Caching Proxy, select
the directory that contains the installation files for your operating system
and select setup.
- To install only Load Balancer:
- For a refresh pack, change to the /lb directory and select setup. For
a fix pack, the Load balancer fix pack only contains Load balancer installation
files and does not include the /lb folder. Select the installation files for
your operating system and select setup.
- Click Open.
- Click OK.
- Enter information as requested by the installation program.
Rejecting an update
- For the AIX operating system, you must produce the patch in refresh or
fix pack format. The Edge Components refresh or fix pack is provided with
product format packaging only, not refresh or fix pack format packaging. Therefore,
you cannot use the AIX SMIT mechanisms for installing and removing patches.
To reject a patch on an AIX system, you must uninstall the file sets and reinstall
the previous version.
- On Windows operating systems, use the setup program for Edge Components
Product to remove components.
- Select Remove on the Maintenance Options window for the setup program.
- Use the setup program for Edge Components to reinstall the previous version.
- On HP-UX, Linux, or Solaris operating systems, to remove a refresh or
fix pack and return to a prepatched state, uninstall the product and reinstall
the previous version.
For most components, when the refresh or fix pack is removed, the configuration
files are saved in the oldfiles/component directory. You can use these configuration
files with the reinstalled version of the product to maintain the patched
configuration in the prepatched version. For the Load Balancer component,
you must manually save configuration files to maintain the patched configuration.