IBM 6C1 System bus, PCI-bus, slots, and adapters, Memory boot time deconfiguration, Bus bandwidth

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2.2.1 Memory boot time deconfiguration

Memory boot time deconfiguration is a function implemented in the service processor firmware for removing a memory segment or DIMM from the system configuration at boot time. The objective is to minimize system failures or data integrity exposure due to faulty memory hardware. The memory segment or DIMM that is deconfigured remains offline for subsequent reboots until the faulty memory hardware is replaced. This function provides the option for the user to manually deconfigure or re-enable a previously deconfigured memory segment or DIMM using the Service Processor menu.

Memory can also be decreased with AIX using the rmss command. This is useful for certain benchmark simulations.

Note: Memory cards can physically be removed only when the power is turned off to the entire system.

2.2.2 Memory interchange with other systems

The 2x256 MB DIMMs (# 4120) or 2x512 MB DIMMs (# 4121) options can be interchanged with the RS/6000® Models 44P-170, 44P-270, and the IBM ^pSeries 640 Model B80.

2.3 System bus

The 6XX bus or system bus is optimized for high-performance and multiprocessing performance. The bus is fully parity checked and each memory or cache request is range checked and positively acknowledged for error detection. Any error will cause a machine check condition and is logged in the AIX error log. The system bus speed is operated at 93.75 MHz with the 375 MHz processor card (1:4 ratio), and at 90 MHz with the 450 MHz processor card (1:5 ratio).

2.3.1 Bus bandwidth

The following are the theoretical maximum bandwidths, as applicable for an 2-way 450 MHz SMP configuration:

￿Memory bandwidth: 1.44 GB/s

￿Processor bandwidth: 1.44 GB/s

￿Bandwidth of the PowerPC® 6xx bus used to the I/O interface: 528 MB/s

2.4PCI-bus, slots, and adapters

The IBM ^pSeries 610 Models 6C1 and 6E1 are compliant with Revision 2.1 of the peripheral component interconnect (PCI) specifications and implement two peer PCI busses:

a32-bit data bus operating at 33 MHz and a 64-bit bus operating at 50 MHz. There are five PCI slots available. Slots one and two are 64-bit capable and can run up to speeds of 50 MHz. Slot three is 64-bit capable, and slots four and five are 32-bit. Slots three, four, and five run at 33 MHz.

A variety of graphics, SCSI, Fibrechannel, LAN, WAN, asynchronous, and SSA adapter cards can be installed in the Models 6C1 and 6E1.

14pSeries 610 Models 6C1 and 6E1 Technical Overview and Introduction

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Contents IBM Volker Haug Scott VetterPage International Technical Support Organization First Edition October Contents Page Preface Team that wrote this WhitepaperComments welcome Minimum and optional features General descriptionPage Physical package PSeries 610 Model 6C1 package layoutEnterprise racks PSeries 610 Model 6E1 package layoutIBM RS/6000 7014 Model T42 Enterprise Rack IBM RS/6000 7014 Model T00 Enterprise RackRack mounting rules for Model 6C1 VGA switch IBM 7316-TF1 Flat Panel Display ConsoleCable management arm Cable management arm for Model 6C1Page Architecture and technical overview Processor and cache POWER3-II architecture1 L1 and L2 cache Copper and Cmos technology Processor boot time deconfiguration within an SMP systemProcessor deallocation State enable means that processor 0 is enabled Processor clock rateMemory Processor part numbersPCI-bus, slots, and adapters Memory boot time deconfigurationSystem bus Memory interchange with other systemsGraphics accelerators 1 32-bit versus 64-bit PCI slotsLAN adapters Internal storage attachmentsConfiguration options, a combination MiscellaneousFast boot Boot options and limitationsBoot support and limitations of storage adapters Internal devicesSecurity Software requirementsHigh availability solution Reliability, availability, and serviceability RAS featuresRemark x means available Light Path diagnostics System indicator panelService processor Automatic rebootBoot to SMS menu Processor and memory boot time deconfigurationService processor restart SurveillanceHot plug fans Hot plug power suppliesSerial port snoop Hot plug task Scsi hot swap managerHandheld based systems management Special notices IBM trademarks AIX AIX 5LSystem Publications Referenced Web SitesHow to Get IBM Redbooks Mail addressRelated Publications

610, 6C1, 6E1 specifications

IBM 6C1, 6E1, and 610 models are part of IBM's legacy mainframe computing systems, renowned for their reliability, scalability, and security features. These systems have been foundational to managing enterprise-level tasks in various industries, including finance, healthcare, and government sectors.

One of the standout features of the IBM 6C1 is its advanced processing capabilities. Equipped with powerful processors, it enables users to handle heavy workloads while maintaining high performance and low latency. This model integrates IBM's latest microarchitecture technology, allowing for faster data processing and improved efficiency.

The IBM 6E1 model emphasizes enhanced memory and storage capabilities, which are crucial for running large-scale applications. With increased RAM options and high-speed access to storage solutions, users can expect improved multitasking capabilities and seamless operations for resource-intensive programs. This model also supports advanced virtualization technologies, making it easier for organizations to deploy multiple virtual machines on a single physical server, thus optimizing resource utilization.

The IBM 610 model is particularly known for its superior security features. With built-in encryption and data protection mechanisms, the 610 is designed to safeguard sensitive information against emerging cyber threats. This model adheres to stringent compliance standards, making it an ideal choice for organizations that handle critical data and require robust regulatory compliance.

Another notable characteristic across these IBM models is their reliability and uptime. IBM's engineering ensures that these systems have undergone rigorous testing to guarantee durability and performance stability. High availability configurations allow for continuous operation, minimizing downtime and ensuring business continuity.

In terms of connectivity, the IBM 6C1, 6E1, and 610 models support a wide range of networking protocols and interfaces. This flexibility allows organizations to seamlessly integrate these systems with existing IT infrastructure and modern cloud solutions.

Moreover, IBM provides comprehensive support and maintenance services for these models, ensuring that organizations can resolve issues promptly and keep their systems running optimally.

In conclusion, the IBM 6C1, 6E1, and 610 mainframe models offer a balanced combination of processing power, memory capacity, security features, and reliability. Their advanced technologies make them ideal for organizations looking to leverage mainframe capabilities for mission-critical applications and data management. With their proven track record, these IBM models continue to be a vital part of enterprise computing environments worldwide.