Memory Fault Handling | Sun Microsystems T6320 specification

TABLE 2-2FB-DIMM Configuration and Installation (Continued)

		Motherboard	FB-DIMM
		FB-DIMM	Installation	FB-DIMM
Branch Name Channel Name	FRU Name	Connector	Order*	Pair\
	/SYS/MB/CMP0/BR3/CH0/D1	J2501	3	H
Channel 1	/SYS/MB/CMP0/BR3/CH1/D0	J2601	2	G
	/SYS/MB/CMP0/BR3/CH1/D1	J2701	3	H

*Upgrade path: DIMMs should be added with each group populated in the order shown. \ Fault replacement path: Each pair is addressed as a unit, and each pair must be identical.

2.2.1.2Memory Fault Handling

The Sun Blade T6320 server module uses advanced ECC technology, also called chipkill, that corrects up to 4-bits in error on nibble boundaries, as long as they are all in the same DRAM. If a DRAM fails, the DIMM continues to function.

Note – The chipkill function is only supported on DIMMs that use “x4” DRAMs.

The following server module features manage memory faults independently.

■POST – Runs when the server module is powered on (based on configuration variables) and thoroughly tests the memory subsystem.

If a memory fault is detected, POST displays the fault with the FRU name of the faulty DIMMs, logs the fault, and disables the faulty DIMMs by placing them in the Automatic System Recovery (ASR) blacklist. For a given memory fault, POST disables half of the physical memory in the system. When this occurs, you must replace the faulty DIMMs based on the fault message and enable the disabled DIMMs with the ILOM command set /SYS/component component_state= enabled .

■Solaris Predictive Self-healing (PSH) technology – A feature of the Solaris OS, uses the fault manager daemon (fmd) to watch for various kinds of faults. When a fault occurs, the fault is assigned a unique fault ID (UUID), and logged. PSH reports the fault and provides a recommended proactive replacement for the DIMMs associated with the fault.

2.2.1.3Troubleshooting Memory Faults

If you suspect that the server module has a memory problem, follow the flowchart (see FIGURE 2-1). Type the ILOM command: show /SP/faultmgmt . The faultmgmt command lists memory faults and lists the specific DIMMs that are

Chapter 2 Sun Blade T6320 Server Module Diagnostics 2-11

T6320 specifications

The Sun Microsystems T6320 is a high-performance server designed to meet the demands of modern data centers and enterprise applications. As part of the Sun Fire series, the T6320 is built for scalability, efficient resource utilization, and reliability, making it an ideal choice for businesses looking to optimize their IT infrastructure.

One of the key features of the T6320 is its support for the UltraSPARC T2 processor architecture. This multicore processor can handle up to eight threads per core, meaning the T6320 can manage up to 64 simultaneous threads. This threading capability is particularly beneficial for virtualization and multi-threaded applications, allowing organizations to maximize the performance of their software while minimizing latency.

The T6320 also comes equipped with a high-speed memory subsystem, supporting up to 256 GB of DDR2 memory. With a memory bandwidth of up to 17 GB/s, the server ensures that data transfer rates do not become a bottleneck, facilitating faster processing and smoother operation for demanding applications. Moreover, the server supports multi-tier storage configurations, enabling organizations to choose the right balance of performance, capacity, and cost.

In terms of connectivity, the T6320 offers multiple gigabit Ethernet ports, creating a resilient network architecture capable of handling the high data loads typical in enterprise environments. Its redundancy features, including hot-swappable components and mirrored disks, further add to its reliability, ensuring continuous service even during maintenance.

The T6320 is built with energy efficiency in mind, minimizing power consumption without compromising performance. This characteristic is increasingly critical for organizations focused on sustainability and cost savings in their energy expenditures.

Additionally, Sun Microsystems has integrated advanced security features into the T6320, such as hardware-based security mechanisms to protect sensitive data and applications. This feature is vital for businesses operating in regulated industries or those that prioritize data integrity.

Finally, the server supports a variety of operating systems, including Solaris, Linux, and various UNIX flavors. This flexibility allows organizations to run their preferred software environments, making the T6320 a versatile option for diverse IT needs.

Overall, the Sun Microsystems T6320 stands out as a powerful, flexible, and efficient server solution, adept at handling the complexities of today's enterprise workloads while paving the way for future growth and technological advancements.

TABLE 2-2FB-DIMM Configuration and Installation (Continued)

/SYS/MB/CMP0/BR3/CH1/D1

J2701

2.2.1.2Memory Fault Handling

2.2.1.3Troubleshooting Memory Faults

Chapter 2 Sun Blade T6320 Server Module Diagnostics 2-11

T6320 specifications