Configure Scan Dump Policy

Note: This function works only on CHRP systems and only under diagnostics 5.1.0.35 or later.

Configure Scan Dump Policy allows the user to set or view the scan dump policy (scan dump control and size) in NVRAM. Scan Dump data is a set of chip data that the service processor gathers after a system malfunction. It consists of chip scan rings, chip trace arrays, and Scan COM (SCOM) registers. This data is stored in the scan-log partition of the system's Nonvolatile Random Access Memory (NVRAM).

Use this service aid to display and change the following settings for the Scan Dump Policy at run time:

vScan Dump Control (how often the dump is taken)

and

vScan Dump Size (size and content of the dump)

The Scan Dump Control (SDC) settings are:

vAs Needed: This setting allows the platform firmware to determine whether a scan dump is performed. This is the default setting for the dump policy.

vAlways: This setting overrides the firmware recommendations and always performs a dump after a system failure.

The Scan Dump Size (SDS) settings are:

vAs Requested - Dump content is determined by the platform firmware.

vMinimum - Dump content collected provides the minimum debug information. The intent is to allow the platform to reboot as quickly as possible.

vOptimum - Dump content collected provides a moderate amount of debug information.

vComplete - Dump data provides the most complete error coverage at the expense of reboot speed.

You can access this task directly from the AIX command line by typing:

/usr/lpp/diagnostics/bin/uspchrp -d

Chapter 6. Introduction to Tasks and Service Aids 105

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IBM pSeries690 manual Configure Scan Dump Policy

pSeries690 specifications

The IBM pSeries690, also known as the IBM eServer p690, is a high-performance server within IBM's line of Power Systems, designed primarily for enterprise-level workloads. Launched in the early 2000s, it distinguished itself as one of IBM's flagship offerings, aimed at delivering exceptional scalability, reliability, and processing power.

At the heart of the pSeries690 is the IBM POWER4 processor, a revolutionary architecture that significantly enhanced processing capabilities. The system supports multiple processor configurations, allowing businesses to customize performance based on their specific applications. Each pSeries690 can be configured with up to 32 POWER4 processors, providing a maximum processing power that is well-suited for demanding enterprise applications, complex databases, and large-scale transaction processing.

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The pSeries690 also includes robust fault tolerance and reliability features. Redundant components, hot-swappable parts, and advanced error detection mechanisms ensure that the system remains operational even in the event of hardware failures. This reliability is crucial for mission-critical applications where downtime can lead to substantial financial losses.

Networking capabilities of the pSeries690 are enhanced by support for high-speed connections, including Gigabit Ethernet and the ability to integrate with various network topologies. This versatility facilitates seamless connectivity in complex IT environments.

In conclusion, the IBM pSeries690 remains a powerful and reliable choice for enterprises seeking to manage and optimize their most demanding workloads. Its combination of cutting-edge processing capabilities, expansive memory support, and robust virtualization features makes it a significant player in the realm of enterprise computing. As businesses continue to evolve, the core strengths of the pSeries690, especially in terms of scalability and reliability, ensure that it continues to meet the needs of demanding applications.