Instructions for compatible upgrades | Incompatible upgrades
Instructions for specific types of compatible upgrades
This section lists details for the steps above about how to upgrade a machine.
Hardware and capacity upgrades
This type of upgrade most likely requires a server shutdown. After restarting, the Load Balancer server may simply be restarted by using the command dsserver and reloading a configuration file. Some parameters possibly need to be adapted to the new hardware in order to utilize increased capacities.
OS upgrade
If a new OS is installed, Load Balancer might need to be reinstalled and reconfigured. Configure the machine for load balancing your Web server cluster as described in 11.2, Configure Load Balancer. If you have done performance tuning as described in Chapter 19, Monitor and tune Load Balancer, also reapply your tuning to the new installation.
Software product upgrade
If a different major version of Load Balancer (or even a different Web server product) is installed, this might require reconfiguration different from the configuration described in this book for Load Balancer V6.0.
Refresh packs and fix packs
Refresh packs and fix packs normally do not require any reconfiguration. Refer to 8.6.2, Install Load Balancer refresh pack, for instructions on how to apply refresh packs and fix packs.
Fixes, APARs, iFix, eFix, and so on
Fixes normally do not require any reconfiguration. Fixes are installed similarly to fix packs. Also refer to the installation instructions that are included with the fixes.