Serial port snoop

You can use the serial port snooping at any point after the system is booted to AIX, whenever the configured reset string is typed on the main console. The system uses the service processor reboot policy to restart. This action causes an early power off warning (EPOW) to be logged, and also an AIX dump to be created if the machine is at an AIX prompt, with AIX in such a state that it can respond. If AIX cannot respond, the EPOW record is created, rather than the AIX dump.

This functionality is very useful in the unlikely event of a system hang and you have to administer a remote server.

3.2.3 Hot plug power supplies

The Models 6C1 and 6E1 adopted Netfinity® 5600 power supplies, which consist of up to three 250 W units. One system unit requires a minimum of two power supplies for normal operation. To make your system more reliable, you can hot-plug a third power supply for redundancy. The third power supply is recognized by your system as soon as you plug it in.

With three supplies, if one supply fails, you can do a hot-plug replacement without a shutdown of your system.

In the unlikely event of one failing power supply (without having the third power supply installed) or two failing power supplies (if you have installed the redundant power supply), a system shutdown will be initiated by the operating system.

3.2.4 Hot plug fans

There are four fans in the Models 6C1 and 6E1. All four fans are hot pluggable. Each fan has a LED to indicate the state of the fan. The Light Path summary panel also has a status LED for each fan. Off means normal operation and solid-on means fault.

At power on, in order to maintain a low acoustic level, the speed of the fans is ramped up slowly. The supply voltage of fan 1 and fan 2 is linearly increased from 0V to approximately 6.5V whereas the supply voltage of fan 3 and fan 4 is linearly increased from 0V to approximately 7.5V. All fans will have their LED (both FRU LED and summary panel fan LED) turned off (normal operation) when running. As ambient temperature exceeds 24C, the fan voltage starts increasing linearly, finally reaching its maximum of approximately 12V at 32C.

If one of the four fans fails, the three remaining fans will be placed in the turbo mode (full speed) by setting the fan supply voltage to 12V. The failing fan LED (both FRU LED and summary panel fan LED) must be switched to solid-on state indicating a fault condition. An alert will be send to the operating system that redundant cooling has been lost and a service call is needed. The failing fan can be replaced (hot-pluggable) while the system is running.

When the failing fan has been replaced and service processor has determined that the new fan operates properly, the fan LED will be switched to off (normal) via the AIX Service Aid menu and the fan supply voltages will be returned to nominal level.

If one fan fails and a second fan runs slow or fails, a system shutdown will be issued to the operating system.

24pSeries 610 Models 6C1 and 6E1 Technical Overview and Introduction

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IBM 610, 6E1, 6C1 manual Hot plug power supplies, Hot plug fans, Serial port snoop
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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.
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