IBM p5 550 Technical Overview And Introduction

Also see for p5 550: Technical overview and introduction

Contents

38 p5-550 Technical Overview and IntroductionManual or Normal. Manual mode overrides various automatic power-on functions, such asauto-power restart, and enables the power switch button. AIX/Linux partition mode boot, available only if the system is not managed by the HMC.– Service mode boot from saved list. This is the preferred way to run concurrent AIXdiagnostics.– Service mode boot from default list. This is the preferred way to run stand-alone AIXdiagnostics.– Boot to open firmware prompt.– Boot to System Management Service (SMS) to further select the boot devices ornetwork boot options. Boot to server firmware:Select the state for the server firmware: Standby or Running.When the server is in the server firmware standby state, partitions can be set up andactivated2.12.2 Hardware Management ConsoleDepending on the model, the HMC provides a number of native serial ports and Ethernet port.One serial port can be used to attach a modem for the Service Agent. The Service AgentConnection Manager can be used instead if the HMC has a TCP/IP port 80 connection to theInternet. The HMC provides an Ethernet port (or ports) to connect to partitions on itsPOWER5 processor-based managed systems. The network connection is mandatory for theHMC to p5 systems, and highly recommended between the HMC and partitions. It supportsthe following functions: Logical partition configuration and management Dynamic logical partitioning Capacity and resource management System status HMC management Service functions (for example, Microcode Updates and Service Focal Point) Remote HMC interfaceAll the managed servers must be authenticated from the HMC. If a new attached system isdiscovered, the HMC will prompt you to set two passwords using the HMC interface: Advanced System Management general user ID password Advanced System Management admin ID password HMC access password2.12.3 IPL flow with an HMC attached to the systemWhen the system status is in standby, you can use the HMC to open a virtual terminal andaccess the SMI, or launch a Web browser to access the ASMI.Note: The same HMC cannot be attached to POWER4 and POWER5 processor-basedsystems simultaneously, but for redundancy purposes, one POWER5 processor-basedserver can be attached to two HMCs.