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IBM P5 570 manual Service processor, Partition Load Manager

Models: P5 570

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Partition Load Manager

Note: The Shared Ethernet adapter and Virtual SCSI server functions are provided in the Virtual I/O Server that is included in the Advanced POWER Virtualization feature

(FC 7942), an additional feature of p5 systems.

Partition Load Manager

The Partition Load Manager (PLM) is part of the Advanced POWER Virtualization feature. It provides automated processor and memory distribution between dynamic LPAR and Micro-Partitioning capable logical partition running AIX 5L. The PLM application is based on a client/server model to share system information, such as processor or memory events, across the concurrent present logical partitions.

To improve the overall resource utilization of a partitioned system, PLM uses user-defined resource management policies to determine the additional resources, such as processors and memory, for each requesting partition.

For network communication, the PLM uses the Resource Monitoring and Control (RMC) subsystem, which provides several events on every managed node. The following events are registered on all managed nodes:

Memory-pages-steal high thresholds and low thresholds

Memory-usage-high thresholds and low thresholds

Processor-load-average high threshold and low threshold

To ensure a secure communication between managed nodes, OpenSSH and Kerberos V5 are supported in PLM to have a secure communication and an authentication mechanism for administrators. If Kerberos is not installed, PLM uses the configured authentication method, such as AIX authentication.

2.10 Service processor

The service processor (SP) is an embedded controller that is based on a PowerPC 405GP processor (PPC405) running the SP internal operating system. The SP operating system contains specific programs and device drivers for the SP hardware.

The p5-570 includes the SP. The key components include an FSP-Base (FSP-B) and an Extender chipset (FSP-E). FSP-B and FSP-E are implemented on a dedicated card.

Chapter 2. Architecture and technical overview 41

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IBM P5 570 manual Service processor, Partition Load Manager

Contents

and Introduction IBM Eserver p5 Technical OverviewExtreme flexibility with outstanding performance Giuliano Anselmi Gregor LinzmeierPage IBM Sserver p5 570 Technical Overview and International Technical Support OrganizationIntroduction JulyFirst Edition July Contents ivp5-570Technical Overview and Introduction Contents vip5-570Technical Overview and Introduction Notices Trademarks The team that wrote this Redpaper PrefaceComments welcome Become a published authorIBM U.S IBM UKChapter 1. General description 2p5-570Technical Overview and Introduction 1.2 Physical package 1.1 System specificationsDimension Description1.3 Minimum and optional features 1.3.1 Processor card features 1.3.3 Disk and media features 1.3.2Memory featuresFeature code Feature Code7311 Model D10 I/O drawer 1.3.4 USB diskette drive1.3.5 I/O drawers 7311 Model D10 I/O drawer physical package 7311 Model D11 I/O drawer physical package 7311 Model D11 I/O drawer7311 Model D20 I/O drawer 7311 Model D20 I/O drawer physical package I/O drawers and usable PCI slots1.3.6 Hardware Management Console models 1.4 Value Paks1.6 System racks 1.5 Model type conversionValue Processors, FC1.6.1 IBM RS/6000 7014 Model T00 Enterprise Rack 1.6.2 IBM RS/6000 7014 Model T42 Enterprise Rack 1.6.3AC Power Distribution Unit and rack contentFlat panel display options 1.6.5 Additional options for rackHardware Management Console 7310 Model CR2 1.6.6OEM rack1.7 Statement of direction 18p5-570Technical Overview and Introduction Figure 2-1 p5-570logic data flow Chapter 2. Architecture and technical overviewPOWER5 2.1 The POWER5 chipPOWER4 Enhanced SMT features 2.1.2 Dynamic power management2.1.1 Simultaneous multi-threading ST operationPOWER5TM 2.1.3 The POWER chip evolutionSMI SMI 2.2 Processor cards2.1.4 CMOS, copper, and SOI technology 24p5-570Technical Overview and Introduction 2.2.1 Processor drawer interconnect cablespmcycles -m 2.2.2 Processor clock rate2.3.2 Memory restriction 2.3.1 Memory placement rules2.3 Memory subsystem 2.3.3 Memory throughput 2.4 System buses2.4.1 RIO-2buses and GX+ card 11S1234567YL12345678901 FRU P/N EC Level2.5.1 PCI-Xslots and adapters 2.5 Internal I/O subsystem2.4.2 SP bus 2.5.3 Graphic accelerators 2.5.2 LAN adapters2.5.4 SCSI adapters 64-bitand 32-bitadapters2.6.1 Internal hot swappable SCSI disks 2.6 Internal storageHot-swapdisks and Linux 2.6.2 Internal RAID options2.6.3 Internal media devices 2.7.1 I/O drawers 2.7 External I/O subsystems2.7.3 7311 Model D20 I/O drawer 7311 Model D10 features7311 Model D11 features 7311 Model D20 internal SCSI cabling 2.7.4 7311 I/O drawer and RIO-2cablingPerformance Optimized 2.7.57311 I/O drawer and SPCN cablingCost Optimized IBM 2104 Expandable Storage Plus 2.7.6External disk subsystemsIBM TotalStorage Enterprise Storage Server IBM 7133 Serial Disk Subsystem SSAIBM TotalStorage FAStT Storage servers 2.8 Dynamic logical partitioning 2.9.2 Advanced POWER Virtualization feature2.9 Virtualization 2.9.1 Virtual EthernetMicro-Partitioningtechnology POWER Hypervisor POWER5 PartitioningVirtual I/O Server Shared Ethernet adapterPartition Load Manager 2.10 Service processor2.10.2Service processor - extender 2.10.1 Service processor - base2.11 Boot process 2.11.3IPL flow with an HMC attached to the system 2.11.2Hardware Management ConsoleProfiles 2.11.4 Definitions of partitionsManaged systems 2.11.5Hardware requirements for partitioning 2.11.7 System Management ServicesProcessors MemoryFigure 2-17System Management Services main menu 2.11.8 Boot optionsExternal tape drives 2.11.9Additional boot optionsDVD-ROM, DVD-RAM LAN boot SAN boot2.12 Operating system requirements 2.11.10 SecurityLinux support 2.12.2 LinuxPage 3.1 Capacity on Demand 2-way1.65 GHz POWER5 processor cardCapacity Upgrade on Demand 3.1.2 Capacity Upgrade on Demand for memoryOn/Off Capacity on Demand Reserve Capacity on DemandOn/Off Capacity on Demand 3.1.4Trial Capacity on Demand 3.2Reliability, availability, and serviceability3.2.1 Fault avoidance Mutual surveillance 3.2.2 First Failure Data Capture3.2.3 Permanent monitoring Environmental monitoring 3.2.4Self-healing3.2.5 N+1 redundancy 3.2.6Fault masking3.2.7Resource deallocation Dynamic or persistent deallocationError indication and LED indicators 3.2.8 Serviceability3.3Manageability Concurrent Maintenance3.3.1 Advanced System Management Interface System Attention LED3.3.2 Service Agent 3.3.3 p5 Customer-ManagedMicrocode 3.3.4 Service Update Management AssistantService focal point 3.4 Cluster 64p5-570Technical Overview and Introduction CSM value pointsCSM V1.4 on AIX and Linux planned 4Q04 Other publications Related publicationsIBM Redbooks 66p5-570Technical Overview and Introduction Online resourcesHelp from IBM How to get IBM Redbooks68p5-570Technical Overview and Introduction Page IBM Eserver p5 For more information: ibm.com/redbooksTechnical Overview and Introduction