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Chapter 4. Reliability, availability, and serviceability

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4.5.3 Service processor

In POWER8 processor-based systems, the dedicated service processor is primarily
responsible for fault analysis of processor and memory errors. The service processor is a
microprocessor that is powered separately from the main instruction processing complex. In
the Power E850C server, redundant connections to the service processor provide added
reliability.

In addition to FFDC functions, the service processor performs many serviceability functions:

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Remote power control options

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Reset and boot features

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Environmental monitoring

The service processor interfaces with the OCC function, which monitors the server’s
built-in temperature sensors and sends instructions to the system fans to increase
rotational speed when the ambient temperature is above the normal operating range. By
using an integrated operating system interface, the service processor notifies the
operating system of potential environmental related problems so that the system
administrator can take appropriate corrective actions before a critical failure threshold is
reached. The service processor can also post a warning and start an orderly system
shutdown in the following circumstances:

– The operating temperature exceeds the critical level (for example, failure of air

conditioning or air circulation around the system).

– Internal component temperatures reach or exceed critical levels.

– The system fan speed is out of operational specification (for example, because of

multiple fan failures).

– The server input voltages are out of operational specification.

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POWER Hypervisor (system firmware) and HMC connection surveillance

The service processor monitors the operation of the firmware during the boot process, and
also monitors the hypervisor for termination. The hypervisor monitors the service
processor and can perform a reset and reload if it detects the loss of the service
processor. If the reset or reload operation does not correct the problem with the service
processor, the hypervisor notifies the operating system. The operating system can then
take appropriate action, including calling for service. The service processor also monitors
the connection to an HMC and can report loss of connectivity to the operating system
partitions for system administrator notification.

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Uncorrectable error recovery

The auto-restart (reboot) option, when enabled, can reboot the system automatically
following an unrecoverable firmware error, firmware hang, hardware failure, or
environmentally induced (ac power) failure.

The auto-restart (reboot) option must be enabled from the ASMI menu or from the
operator panel on the front of the server.

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Содержание E850C

Страница 1: ...Redpaper Front cover IBM Power System E850C Technical Overview and Introduction Alexandre Bicas Caldeira Volker Haug...

Страница 2: ......

Страница 3: ...International Technical Support Organization IBM Power System E850C Technical Overview and Introduction October 2016 REDP 5412 00...

Страница 4: ...uplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp First Edition October 2016 This edition applies to the IBM Power System E850C 8408 44E server This document was created o...

Страница 5: ...PCIe Gen3 I O expansion drawer 10 1 6 2 EXP24S SFF Gen2 bay Drawer 12 1 7 Build to order 13 1 8 IBM Power Systems Solution Editions 13 1 8 1 IBM Power Systems Solution Editions for SAP HANA 13 1 8 2 I...

Страница 6: ...8 Asynchronous and USB adapters 53 2 9 9 Cryptographic coprocessor 53 2 9 10 Flash storage adapters 53 2 10 Internal storage 54 2 10 1 Storage controller options 54 2 10 2 RAID protection for internal...

Страница 7: ...s 105 4 3 Availability 106 4 3 1 Correctable error introduction 106 4 3 2 Uncorrectable error introduction 106 4 3 3 Processor Core Cache correctable error handling 107 4 3 4 Processor Instruction Ret...

Страница 8: ...on 4 6 3 Concurrent firmware maintenance improvements 133 4 6 4 Electronic Services and Electronic Service Agent 133 4 7 Selected POWER8 RAS capabilities by operating system 137 Related publications 1...

Страница 9: ...BM websites are provided for convenience only and do not in any manner serve as an endorsement of those websites The materials at those websites are not part of the materials for this IBM product and...

Страница 10: ...Power Systems Software POWER6 POWER6 POWER7 POWER7 POWER8 PowerHA PowerPC PowerSC PowerVM PowerVP Redbooks Redpaper Redbooks logo Storwize System Storage SystemMirror WebSphere XIV The following term...

Страница 11: ...ud PowerVC manager can enable clients to accelerate the transformation of their IT infrastructure for cloud while providing tremendous flexibility during the transition IBM Cloud PowerVC Manager provi...

Страница 12: ...erica He holds a degree in Computer Science from the Universidade Estadual Paulista UNESP and an MBA in Marketing His major areas of focus are competition sales marketing and technical sales support A...

Страница 13: ...logies Your efforts will help to increase product acceptance and customer satisfaction as you expand your network of technical contacts and relationships Residencies run from two to six weeks in lengt...

Страница 14: ...Redbooks Find us on Facebook http www facebook com IBMRedbooks Follow us on Twitter http twitter com ibmredbooks Look for us on LinkedIn http www linkedin com groups home gid 2130806 Explore new Redb...

Страница 15: ...lp clients deploy scalable mission critical business applications in virtualized private cloud infrastructures The Power E850C is optimized for running AIX and Linux workloads The Power E850C server i...

Страница 16: ...ble for use The processor and memory subsystem in the Power E850C server is contained on a single planar This CPU planar contains the four processor sockets and 32 memory Custom DIMM CDIMM slots The m...

Страница 17: ...Demand for both cores and memory IBM Active Memory Expansion and Active Memory Mirroring for Hypervisor The Power E850C supports AIX and Linux operating systems and PowerVM Standard and Enterprise ed...

Страница 18: ...E850C Power E850C operating environment System Power E850C Operating Non operating Temperature Recommended 18 27 C 64 80 F 1 60 C 34 140 F Allowable 5 40 C 41 104 F Relative humidity 8 80 5 80 Maximum...

Страница 19: ...oduct specific installation requirements Figure 1 3 shows a picture of a Power E850C system node from the front Figure 1 3 Front view of the Power 850C system node Environmental assessment The IBM Sys...

Страница 20: ...nd one DVD bay All backplane options offer IBM Easy Tier function for mixed HDD SSD arrays Dual SAS Controller Backplane without write cache EPVP Dual SAS Controller Backplane with write cache EPVN Sp...

Страница 21: ...ooling fans Highly resilient architecture for power regulators Other features Second generation service processor Hot plug SAS bays and PCIe slots Redundant and hot plug power supplies and fans Option...

Страница 22: ...edia features This section describes the key disk and media features 1 5 1 SAS bays and storage backplane options Clients have a choice of three storage features with eight SFF disk bays four x 1 8 in...

Страница 23: ...Q Conceptually this function is like the Easy Tier function found in IBM Storage products such as the IBM System Storage DS8000 IBM Storwize V7000 and SAN Volume Controller However it is implemented j...

Страница 24: ...rs with three processor modules Up to four PCIe3 drawers with four processor modules Each PCIe Gen3 I O expansion drawer adds a total of 10 PCIe Gen3 adapter slots to the server s capabilities Figure...

Страница 25: ...10 Gb 1 GbE Copper SFP RJ45 Adapter EN0U PCIe2 2 port 10 GbE SFN6122F Adapters EC2J PCIe2 2 port 10 GbE RoCE SR Adapter EC30 PCIe2 2 port 10 GbE RoCE SFP Adapter EC28 PCIe2 2 port 10 GbE SR Adapter 52...

Страница 26: ...x bays two sets of 12 bays or one set of 24 bays mode 4 2 or 1 Mode setting is done by IBM Manufacturing If you need to change the mode after installation ask your IBM support representative to see th...

Страница 27: ...oud environment Power Systems Solution Edition for SAP HANA offers a competitively priced POWER8 server that is preconfigured to support the deployment of SAP HANA SAP s in memory database This config...

Страница 28: ...nce and system reliability The SAP HANA code that runs on the POWER architecture uses the exceptional POWER8 memory bandwidth SIMD parallelization and simultaneous multithreading SMT Table 1 4 lists t...

Страница 29: ...set of functions that are necessary to manage the system Creating and maintaining a multiple partition environment EN0S x 2 PCIe2 4 Port 10 Gb 1 GbE SR RJ45 Adapter 5729 x 2 8 GB 4 port Fibre Channel...

Страница 30: ...writing but you can also use one of the withdrawn models listed in Table 1 6 Table 1 6 HMC models that support POWER8 processor technology based servers Existing HMC models 7042 can be upgraded to Li...

Страница 31: ...rack that provides 36U or 36 EIA of space The 7014 T42 or feature 0553 is a 2 meter enterprise rack that provides 42U or 42 EIA of space Compared to the existing Power E850 the E850C server draws add...

Страница 32: ...rack The 2 0 meter 79 3 inch Model T42 addresses the requirement for a tall enclosure to house the maximum amount of equipment in the smallest possible floor space The following features differ in th...

Страница 33: ...rack 1 10 4 Feature code 0551 rack The 1 8 meter rack 0551 is a 36U EIA units rack The rack that is delivered as 0551 is the same rack that is delivered when you order the 7014 T00 rack The included f...

Страница 34: ...ith a C20 plug connect to C19 PDU receptacles and are ordered separately One country specific wall power cord is also ordered separately and attaches to a UTG524 7 connector on the front of the PDU Su...

Страница 35: ...tems Hardware IBM Knowledge Center website https www ibm com support knowledgecenter TI0002C p8had p8had_85x_86x_kickoff htm 1 10 7 Rack mounting rules Consider the following primary rules when you mo...

Страница 36: ...22 IBM Power System E850C Technical Overview and Introduction...

Страница 37: ...implementation are key to achieving the best performance Always do the performance sizing at the application workload environment level and evaluate performance by using real world performance measure...

Страница 38: ...1 Dimensions of the system components for installation planning A Power E850C server should be installed into a rack that has been certified and tested to support the system such as the IBM 7014 T00 r...

Страница 39: ...f the system provides access to the internally installed PCIe cards the service processor connections and the power supply units Figure 2 2 shows a rear view of the Power E850C server showing power su...

Страница 40: ...e number of PCIe adapter slots that can be used varies based on the number of processor modules installed Table 2 2 shows the available options Table 2 2 Usable memory CDIMM slots and PCIe adapter slo...

Страница 41: ...e C11 slot Figure 2 4 shows the logical design of the Power E850C server with two processor modules installed Figure 2 4 Logical diagram for a Power E850C with two processor modules installed USB 3 0...

Страница 42: ...0C Technical Overview and Introduction Figure 2 5 shows the logical design of the Power E850C server with three processor modules installed Figure 2 5 Logical diagram for a Power E850C with three proc...

Страница 43: ...or DDR4 memory Each buffer chip also includes an L4 cache to reduce the latency of local memory accesses For an in depth discussion on the POWER8 processor see the IBM Power System E850 Technical Over...

Страница 44: ...ory or allowing a server to run more partitions and do more work with the same physical amount of memory The processor resource used to expand memory is part of the processor entitlement assigned to t...

Страница 45: ...onsumption by reducing the number of memory requests Increases memory write performance by acting as a cache and by grouping several random writes into larger transactions Partial write operations tha...

Страница 46: ...Hz DDR4 DRAM EM8P 32 GB CDIMM 1600 MHz DDR4 DRAM EM8Q 64 GB CDIMM 1600 MHz DDR4 DRAM EM8R 128 GB CDIMM 1600 MHz DDR4 DRAM EM8S Table 2 3 summarizes the minimum and maximum CDIMM and memory requirement...

Страница 47: ...identical and plugged into P2 C20 and P2 C21 Fifth CDIMM pair is identical and plugged into P2 C14 and P2 C15 Sixth CDIMM pair is identical and plugged into P2 C22 and P2 C23 Seventh CDIMM pair is id...

Страница 48: ...CDIMM pair is identical and plugged into P2 C10 and P2 C11 Eleventh CDIMM pair is identical and plugged into P2 C18 and P2 C19 Twelfth CDIMM pair is identical and plugged into P2 C26 and P2 C27 Table...

Страница 49: ...mory CDIMMs in a Power E850C system are capable of capacity upgrade on demand and must have a minimum of 50 of their physical capacity activated A minimum of 128 GB of memory must be activated on each...

Страница 50: ...z Core 1 x 32 B 1 x 32 B x 3 658 GHz 234 11 GBps 3 95 GHz Core 1 x 32 B 1 x 32 B x 3 957 GHz 253 25 GBps 4 22 GHz Core 1 x 32 B 1 x 32 B x 4 223 GHz 270 27 GBps Memory bandwidths Each processor module...

Страница 51: ...er E850C 2 processor modules 3 65 GHz 24 cores 3 processor modules 3 65 GHz 36 cores 4 processor modules 3 65 GHz 48 cores L1 data cache 4213 92 GBps 6320 88 GBps 8427 84 GBps L2 cache 4213 92 GBps 63...

Страница 52: ...hosts the hypervisor memory blocks so the mirroring is done at the logical memory block level not at the CDIMM level To enable the AMM feature the server must have enough free memory to accommodate t...

Страница 53: ...spare DRAM per rank on each memory CDIMM provides for dynamic DRAM device replacement during runtime operation Also dynamic lane sparing on the memory link allows for replacement of a faulty data lane...

Страница 54: ...memory activations are restricted to the single server they are licensed to and cannot be transferred to another system Capacity Upgrade on Demand can have several applications to allow for a more fl...

Страница 55: ...CDIMMs installed in the system You cannot activate more memory capacity than is physically installed in the server 2 6 2 Elastic Capacity on Demand With the Elastic CoD offering you can temporarily ac...

Страница 56: ...o request up to 90 processor days of temporary capacity for each inactive processor core within the server For instance if you have 32 processor cores installed and 16 are permanently activated you wo...

Страница 57: ...CoD processor minute is charged This level of performance is then available for the next minute of use If additional workload requires a higher level of performance the system automatically allows th...

Страница 58: ...tware running on this capacity The activation code that is provided is for the hardware resources only Elastic CoD Utility CoD and Trial CoD activations include incremental licensing for the following...

Страница 59: ...ivations in which case the entire system is restricted to running only Linux workloads When ordering an Integrated Facility for Linux package ELNN the following no cost features are added to the syste...

Страница 60: ...ore the maximum number of adapters supported and the total PCIe bandwidth available varies by configuration All PCIe Gen3 slots in the server are hot plug compatible for concurrent maintenance and rep...

Страница 61: ...Gen1 Gen2 or Gen3 adapters The server also supports full height full length audiotapes in the I O expansion drawer For more information see 2 11 1 PCIe Gen3 I O expansion drawer on page 62 Table 2 14...

Страница 62: ...nt Ethernet addresses on two distinct subnets One Ethernet port is used as the primary connection and the second Ethernet port can be used for redundancy 1 x serial port This RJ 45 port can be convert...

Страница 63: ...ts Before adding or rearranging adapters use the System Planning Tool to validate the new adapter configuration For more information see the IBM System Planning Tool website http www ibm com systems s...

Страница 64: ...1 GbE SR RJ45 Adapter 50 AIX Linux EN0U 2CC3 PCIe2 4 port 10 Gb 1 GbE Copper SFP RJ45 Adapter 50 AIX Linux EN0W 2CC4 PCIe2 2 port 10 1 GbE BaseT RJ45 Adapter 50 AIX Linux EN15 2CE3 PCIe3 4 port 10 Gb...

Страница 65: ...nd network connections and FCoE connections Figure 2 11 Comparison between existing FC and network connections and FCoE connections Feature Code CCIN Description Max per system OS support 5729 PCIe2 8...

Страница 66: ...InfiniBand is based on a switched fabric architecture of serial point to point links where these InfiniBand links can be connected to either host channel adapters HCAs which are used primarily in serv...

Страница 67: ...aphic coprocessor 2 9 10 Flash storage adapters The available flash storage adapters are shown in Table 2 24 Table 2 24 Available flash storage adapters Feature code CCIN Description Max per system OS...

Страница 68: ...es four SFF disk bays and two 1 8 inch disk bays One of the controllers handles the DVD bay None of the controller options provide any external SAS connections for further expansion If you want to exp...

Страница 69: ...ccess to all of the internal disks If multiple arrays are configured on the internal disks the controllers split primary responsibility for handling the arrays If one of the dual controllers fails the...

Страница 70: ...e same capacity RAID 6 requires a minimum of four drives of the same capacity RAID 10 requires a minimum of two drives Hot spare capability is supported by RAID 5 or RAID 6 All three controller option...

Страница 71: ...ently calculated and distributed parity information for extra fault tolerance A RAID 6 configuration requires N 2 drives to accommodate the additional parity data making it less cost effective than RA...

Страница 72: ...o coding or software intervention is needed after the RAID is configured correctly Statistics on block accesses are gathered every minute When the adapter detects that some portion of the data is bein...

Страница 73: ...rd operating system SAS adapter configuration utility Figure 2 15 shows an example of tiered array creation for AIX Figure 2 15 Array type selection panel on AIX RAID Manager Figure 2 16 shows a creat...

Страница 74: ...both HDDs and SSDs mounted in a Gen3 carrier Previous generation SFF disk types SFF 1 and SFF 2 do not fit in these bays All SFF 3 bays support concurrent maintenance or hot plug capability All three...

Страница 75: ...th software such as AIX Network Installation Management NIM or Linux Install Manager to perform these functions The Power E850C supports the RDX USB External Docking Station for Removable Disk Cartrid...

Страница 76: ...wer can be configured with one or two EMXF fanout modules Adding a second fanout module is not a hot plug operation and requires scheduled downtime The physical dimensions of the drawer are 444 5 mm 1...

Страница 77: ...s found at http www ibm com support knowledgecenter 8408 E8E p8eab p8eab_85x_slot_details htm 2 11 2 PCIe Gen3 I O expansion drawer optical cabling I O drawers are connected to the adapters in the ser...

Страница 78: ...able to connector T2 on the PCIe3 optical cable adapter in your server 4 Connect the other end of the cable to connector T2 on the PCIe3 6 slot Fan Out module in your expansion drawer 5 Repeat the pre...

Страница 79: ...g PCIe3 Optical Cable Adapter EJ08 Table 2 29 shows PCIe adapter slot priorities in the Power E850C server Table 2 29 PCIe adapter slot priorities T1 T2 Optical cable adapter T1 T2 Optical cable adapt...

Страница 80: ...possible combination of the I O expansion drawer to server attachments Figure 2 20 shows an example of a Power E850C with two processor modules and a maximum of two PCIe Gen3 I O expansion drawers Fig...

Страница 81: ...sor modules and a maximum of three PCIe Gen3 I O expansion drawers Figure 2 21 Example of a Power E850C and a maximum of three PCI Gen3 I O expansion drawers I O Drawer I O Drawer Power E850 with thre...

Страница 82: ...of four I O drawers 2 11 3 PCIe Gen3 I O expansion drawer SPCN cabling There is no system power control network SPCN used to control and monitor the status of power and cooling within the I O drawer S...

Страница 83: ...possible single points of failure EXP24S configuration rules consistent with previous Power Systems are used All Power operating system environments that are using SAS adapters with write cache requi...

Страница 84: ...n Mode setting is done by IBM manufacturing If you need to change the mode after installation ask your IBM support representative to refer to the following site http w3 ibm com support techdocs atsmas...

Страница 85: ...sure The EXP24S SAS ports are attached to a SAS PCIe adapter or pair of adapters by using SAS YO or X cables Cable length varies depending on the feature code Calculate the proper length considering r...

Страница 86: ...AIX Linux 1953 300 GB 15 K RPM SAS SFF 2 Disk Drive AIX Linux 1536 AIX Linux 1964 600 GB 10 K RPM SAS SFF 2 Disk Drive AIX Linux 1536 AIX Linux ES0Q 387 GB SFF 2 SSD 5xx eMLC4 for AIX Linux 768 AIX Li...

Страница 87: ...Figure 2 26 shows the rear connectors of the EXP24S drawer how they relate to the modes of operation and disk grouping Figure 2 26 Rear view of EXP24S with the 3 modes of operation and the disks assig...

Страница 88: ...de 1 allowing for up to 24 disks to be attached to the server Figure 2 27 shows the connection diagram and components of the solution Figure 2 27 Scenario 1 Basic non redundant connection The followin...

Страница 89: ...the solution Figure 2 28 Scenario 2 Basic redundant connection The following are the required feature codes for this scenario One EXP24S drawer 5887 with indicator feature 9360 mode 1 with dual 5901...

Страница 90: ...gure 2 29 Dual Virtual I O Servers sharing a single EXP24S The following are the required feature codes for this scenario One EXP24S drawer 5887 with indicator feature 9366 mode 2 with quad 5901 Four...

Страница 91: ...enance of the whole EXP24S drawers if all data is properly mirrored Figure 2 30 shows the connection diagram and components of the solution Figure 2 30 Dual Virtual I O Servers sharing two EXP24S The...

Страница 92: ...tual I O Servers sharing two EXP24S The following are the required feature codes for this scenario Two EXP24S drawers 5887 with indicator feature 9365 mode 4 with four 5901 Eight PCIe SAS adapter 5901...

Страница 93: ...em The IBM XIV Storage System hardware is part of the Spectrum Accelerate family and is a high end disk storage system It helps thousands of enterprises meet the challenge of data growth with hotspot...

Страница 94: ...agement support for configuring logical partitions LPARs and dynamic resource allocation including processor and memory settings for selected Power Systems servers The HMC also supports advanced servi...

Страница 95: ...Power Systems servers The virtual HMC runs as a virtual machine on an x86 server virtualized either by VMware ESXi or Red Hat KVM It offers the same functionality as the hardware appliance HMC However...

Страница 96: ...mware level 2 13 4 HMC connectivity to the POWER8 processor based systems POWER8 processor based servers and their predecessor systems that are managed by a hardware or virtual appliance HMC require E...

Страница 97: ...portant hardware component Although Power Systems servers and their hosted partitions can continue to operate when the managing HMC becomes unavailable certain operations such as dynamic LPAR partitio...

Страница 98: ...ower Systems visit the IBM Power Systems Software website at http www ibm com systems power software index html 2 14 1 Virtual I O Server The minimum required level of Virtual I O Server for Power E85...

Страница 99: ...about features and external devices that are supported by Linux see this site http www ibm com systems p os linux index html For information about SUSE Linux Enterprise Server see this site http www n...

Страница 100: ...user understand and dynamically optimize processor performance versus processor energy consumption and system workload to control IBM Power Systems power and cooling usage EnergyScale uses power and t...

Страница 101: ...s Soft power capping There are two power ranges into which the power cap can be set Power capping as described previously and soft power capping Soft power capping extends the allowed energy capping r...

Страница 102: ...ors made available increases As the workload decreases the number of processors that are made available decreases Processor folding increases energy savings during periods of low to moderate workload...

Страница 103: ...vity thermal voltage and current sensors The on die nature of the OCC allows for approximately 100 increase in speed in response to workload changes over POWER7 The capability enables reaction under t...

Страница 104: ...and model number and server specifications For example for the Power E850C system search for 8408 44E server specifications An estimation of the energy consumption for a certain configuration The cal...

Страница 105: ...ate and hybrid This combination allows for fast and automated VM deployments based on prebuilt image templates and self service capabilities all with an intuitive interface This chapter provides an ov...

Страница 106: ...Manager provides a self service cloud portal for IBM Power Systems This self service portal enables users to quickly request cloud resources and reliably deploy virtual machines with approval policie...

Страница 107: ...ps as a Service provides powerful insights into your Power Systems infrastructure by using a set of hosted as a service apps with no additional software or infrastructure setup Through these new apps...

Страница 108: ...tion and configuration tooling for AIX IBM has expanded its commitment to keep key open source cloud management packages updated and to provide timely security fixes to enable clients to take advantag...

Страница 109: ...vailable and includes support for licensed AIX users For more information see the AIX Toolbox for Linux Applications website at http www ibm com systems power software aix linux toolbox alpha html Git...

Страница 110: ...respond to their dynamically changing business priorities in a more agile and timely fashion 3 2 1 Hybrid infrastructure management tools Power Systems OpenStack based PowerVC management upwardly inte...

Страница 111: ...itlement of a POWER8 Linux bare metal system in the IBM Cloud SoftLayer Customers are entitled to six months of a C812L M POWER8 Linux bare metal with the following configuration 10 core POWER8 proces...

Страница 112: ...zed environments Although critical applications can benefit from the clustered virtual machines model because of the faster RTO its implementation can be more complex for many virtual machines However...

Страница 113: ...oud Reward Program services offerings use the proven expertise of IBM Systems Lab Services consultants The following list is a sample of the services that are offered under the IBM Power to Cloud Rewa...

Страница 114: ...100 IBM Power System E850C Technical Overview and Introduction...

Страница 115: ...in a server occurs Availability Indicates how infrequently the functioning of a system or application is affected by a fault or defect Serviceability Indicates how well faults and their effects are co...

Страница 116: ...have advanced design features within the processor for correction or try again after soft error events In addition the design incorporates spare capacity that is integrated into many elements to toler...

Страница 117: ...replacing memory After all self healing and other RAS related features are implemented the hypervisor might still detect that a DIMM has a substantial fault that when combined with a future fault coul...

Страница 118: ...cture based approach is designed to improve overall system reliability with each successive generation of system offerings Reliability can be improved in primarily three ways Reducing the number of co...

Страница 119: ...Large decreases in component reliability are directly correlated to relatively small increases in temperature All POWER processor based systems are packaged to ensure adequate cooling Critical system...

Страница 120: ...continues to worsen over time resulting in an uncorrectable error condition You can predictively deallocate a component to prevent correctable errors from aligning with soft errors or other hardware f...

Страница 121: ...essor reinitialization during system reboot or individual Core Power on Reset using the Power On Reset Engine 4 3 4 Processor Instruction Retry and other try again techniques Within the processor core...

Страница 122: ...try cannot contain might be handled in PowerVM by a technique called Core Contained Checkstops This technique allows PowerVM to be signaled when such faults occur and terminate code in use by the fail...

Страница 123: ...olid faults within internal or external processor fabric busses are corrected by the error correction code that is used POWER8 processor to processor module fabric busses also use a spare data lane so...

Страница 124: ...ts contains 10 DRAM modules For each such port there are eight DRAM modules worth of data 64 bits plus another DRAM module s worth of error correction and other such data There is also a spare DRAM mo...

Страница 125: ...on is not relied on for repair of faulty hardware If a more substantial fault persists after all the self healing capabilities are used the hypervisor also can dynamically moving logical memory blocks...

Страница 126: ...ation information and the persistent data are stored external to the server on persistent storage This capability requires that an HMC manage the host system and the operational target system The Remo...

Страница 127: ...ata backups and so on These offerings include distributed applications with IBM DB2 PureScale HA solutions that use clustering technology with IBM PowerHA SystemMirror and disaster management across g...

Страница 128: ...ve a running logical partition including its operating system and running applications from one system to another without any shutdown and without disrupting the operation of that logical partition In...

Страница 129: ...xiting host server and the destination server VIOS partitions cannot be migrated For more information about Live Partition Mobility and how to implement it see IBM PowerVM Live Partition Mobility SG24...

Страница 130: ...re detection circuitry that is used to detect erroneous hardware operations Error checking hardware ranges from parity error detection that is coupled with Processor Instruction Retry and bus try agai...

Страница 131: ...ances The operating temperature exceeds the critical level for example failure of air conditioning or air circulation around the system Internal component temperatures reach or exceed critical levels...

Страница 132: ...ine failure information while connected to IBM back end systems Using the extensive network of advanced and complementary error detection logic that is built directly into hardware firmware and operat...

Страница 133: ...tained Device drivers In certain cases diagnostic tests are best performed by operating system specific drivers most notably adapters or I O devices that are owned directly by a logical partition In t...

Страница 134: ...service and support and a notification is sent to the contact that is defined in the ESA guided setup wizard Remote support The Remote Monitoring and Control RMC subsystem is delivered as part of the...

Страница 135: ...aded to the optional HMC Specific management console information is included as part of the information that optionally can be sent to IBM Support for analysis If additional information that relates t...

Страница 136: ...rvice representatives to help keep the firmware and software current on the server IBM Service and Support Problem Management database At the IBM Support center historical problem data is entered into...

Страница 137: ...the component by signaling flashing the component identity LED and illuminating the blue enclosure identity LED to identify the server in a busy data center After the repair the LEDs shut off automat...

Страница 138: ...tion that simplify the servicing of the system From this quick access link you can find information about the following topics among others Installing and configuring the system Troubleshooting and pr...

Страница 139: ...ives who are familiar with the task and those who are not Education on demand content is placed in the procedure at the appropriate locations Throughout the R V procedure repair history is collected a...

Страница 140: ...rface that is connected to the POWER8 processor The service processor is always running regardless of the main system unit s state The system unit can be in the following states Standby power off Oper...

Страница 141: ...unwanted IP addresses or ranges You might be able to use the service processor s default settings In that case accessing the ASMI is not necessary To access ASMI use one of the following methods Use...

Страница 142: ...el can be accessed in two ways By using the normal operational front view By pulling it out to access the switches and view the LCD display The operator panel has these features A 2 x 16 character LCD...

Страница 143: ...ound by partition firmware when the system or partition is booting The service processor s error log can be accessed on the ASMI menus You can also access the system diagnostics from a Network Install...

Страница 144: ...ranty period plus some additional time The Power Systems Firmware is relocated from the public repository to the access control repository The I O firmware remains on the public repository but the ser...

Страница 145: ...supported They want to move a system to a more standardized release level when there are multiple systems in an environment with similar hardware A new release has a new function that is required in t...

Страница 146: ...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 Acce...

Страница 147: ...or activation With the Power On Reset Engine PORE the firmware can now dynamically power off processor components change the registers and reinitialize while the system is running without discernible...

Страница 148: ...pport This enhancement can translate to less time that is wasted monitoring the symptoms diagnosing the error and manually calling IBM Support to open a problem record The tool s 24x7 monitoring and r...

Страница 149: ...following website http www ibm com support electronicsupport Service Event Manager The Service Event Manager SEM allows the user to decide which of the Serviceable Events are called home with the ESA...

Страница 150: ...he filters for filtering the list of serviceable events that is shown After you make the selections click Refresh to refresh the list based on the filter values Approval state Select the value for app...

Страница 151: ...erating system RAS feature AIX V7 2 TL1 SP1 V7 1 TL3 SP5 V6 1 TL9 SP5 Linux RHEL 6 8 RHEL 7 2 SUSE Linux Enterprise Server 12 Ubuntu 16 04 01 Processor FFDC for fault detection error isolation X X Pro...

Страница 152: ...P mutual surveillance with POWER Hypervisor X X Concurrent firmware update with HMC X X Service Agent Call Home Application X X Service indicator LED support X X System dump for memory POWER Hyperviso...

Страница 153: ...nance with HMC X X PowerVM Live Partition Live Application Mobility with PowerVM Enterprise Edition X X Emergency power off warning EPOW EPOW errors handling X X RAS feature AIX V7 2 TL1 SP1 V7 1 TL3...

Страница 154: ...140 IBM Power System E850C Technical Overview and Introduction...

Страница 155: ...r System S821LC Technical Overview and Introduction REDP 5406 IBM Power System S822 Technical Overview and Introduction REDP 5102 IBM Power System S822LC for Big Data Technical Overview and Introducti...

Страница 156: ...ibm com systems power hardware s812l s822l index html IBM Power Systems S822LC for Big Data server specifications http www ibm com systems power hardware s822lc big data index html IBM Power System S...

Страница 157: ...urces IBM Fix Central website http www ibm com support fixcentral IBM Knowledge Center http www ibm com support knowledgecenter IBM Power Systems website http www ibm com systems power IBM Power Syste...

Страница 158: ...144 IBM Power System E850C Technical Overview and Introduction...

Страница 159: ......

Страница 160: ...ibm com redbooks Printed in U S A Back cover ISBN 0738455687 REDP 5412 00...

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