System information

Chapter 14. Firmware maintenance

This chapter describes the various options available for maintaining both HMC and managed

system firmware levels. We show you, through examples, some of the main firmware update

options.

We discuss the different methods of updating the HMC to a new software level as well as

installing individual fix packs. We also cover the backup of the HMC to help with the recovery

process in the event of a disaster. Finally, we show the two ways of updating an i5 managed

system’s firmware, either through the HMC (out-of-band) or via an i5/OS service partition

(in-band) with special MHxxxxx PTFs.

The following main topics are covered in this chapter:

򐂰 How to determine the HMC installed software level

򐂰 HMC backup of critical console data

򐂰 Installing an individual HMC fix

򐂰 Firmware overview