266 IBM Power Systems 775 for AIX and Linux HPC Solution5.1 Managing service updatesThis section provides an overview on updating the firmware and software for the variouscomponents within the IBM Power 775 High Performance Computing cluster.5.1.1 Service packsService packs are used to indicate components and levels of components that are verified tooperate together. The service pack includes a readme file for installing and updating the IBMHPC clustering with Power 775. The service pack also contains the following useful serviceinformation: Software offerings Recommended code levels Recommended installation sequence Known restrictions and limitations Known problems and workarounds Hints and tips Service pack support matrix and archiveFor the latest information about applying code maintenance, see the appropriate service packon the IBM HPC clustering with Power 775 servers/service packs portion of the IBM HighPerformance Computing clusters service packs at this website:http://www.ibm.com/developerworks/wikis/display/hpccentral/IBM+High+Performance+Computing+Clusters+Service+Packs#IBMHighPerformanceComputingClustersServicePacks-IBMHPCClusteringwithPower775serversServicePacksIf your service pack is not listed, see the most recent service pack and access the archivedservice packs that lists your service pack.5.1.2 System firmwareThis section describes the basic steps for updating and validating firmware updates to theframe power code and the CECs GFW system firmware.For more information about updating the Central Electronic Complex (CEC) firmware, andvalidating CECs power up, see this website:http://sourceforge.net/apps/mediawiki/xcat/index.php?title=XCAT_System_p7_775_Hardware_Management#Update_the_CEC_firmware.2C_and_Validate_CECs_Can_Power_UpIBM fix centralLocate and download the supported Power 775 power code and GFW System firmware(CEC) from IBM fix central to a directory on the EMS. The IBM HPC clustering with Power775 service pack contains the recommended code levels. Links to fix central and to downloadthe firmware are available at this website:http://www.ibm.com/support/fixcentral