Specifications

5102ch04.fm Draft Document for Review May 12, 2014 12:46 pm
134 IBM Power System S822 Technical Overview and Introduction
Each IBM Power Systems server has the following levels of server firmware and power
subsystem firmware:
򐂰 Installed level
This level of server firmware or power subsystem firmware is installed and will be installed
into memory after the managed system is powered off and then powered on. It is installed
on the temporary side of system firmware.
򐂰 Activated level
This level of server firmware or power subsystem firmware is active and running
in memory.
򐂰 Accepted level
This level is the backup level of server or power subsystem firmware. You can return to this
level of server or power subsystem firmware if you decide to remove the installed level. It is
installed on the permanent side of system firmware.
In Figure 4-2 the HMC screen shows the different levels.
Figure 4-2 HMC System Firmware Screen
IBM provides the Concurrent Firmware Maintenance (CFM) function on selected Power
Systems. This function supports applying non disruptive system firmware service packs to the
system concurrently (without requiring a reboot operation to activate changes). For systems
that are not managed by an HMC, the installation of system firmware is always disruptive.
The concurrent levels of system firmware can, on occasion, contain fixes that are known as
deferred. These deferred fixes can be installed concurrently but are not activated until the
next IPL. Deferred fixes, if any, will be identified in the Firmware Update Descriptions table of
the firmware document. For deferred fixes within a service pack, only the fixes in the service
pack that cannot be concurrently activated are deferred. Table 4-1 shows the file-naming
convention for system firmware.
Table 4-1 Firmware naming convention
PPNNSSS_FFF_DDD
PP Package identifier 01 -