Compaq AlphaServer ES40 User Manual

3-14 Compaq AlphaServer ES40 Service Guide
3.3.3 Resizing SRM Console Heap
The SRM console allocates enough memory for most configurations. If
options were installed that require more memory than the SRM console
has allocated, the console dynamically resizes itself to provide
additional memory to support the configuration.
The following crash/reboot cycle can occur several times until the console has
allocated enough memory. An abbreviated example of the output to a serial
console screen is shown in Example 3–3.
1. The console powers up.
2. Drivers try to allocate more “heap space” (space for more memory) but
cannot.
3. The console displays a message similar to the following:
CPU0: insufficient dynamic memory for a request of 4592 bytes
Console heap space will be automatically increased in size by
64KB
4. The console takes an exception.
5. The console allocates more heap space and restarts with memory set to the
required size.
After the console completes its final reinitialization, the console banner is
displayed, followed by the console prompt. Enter the show heap_expand
command to verify that the console has allocated more memory. You can then
boot the operating system. No other action is required, and the crash/reboot
cycle should not occur again.
If the configuration is subsequently changed, enter the following command to
reset the heap space to its default before you boot the system:
P00>>> set heap_expand none
Resizing may or may not occur again, depending on whether the console
requires additional heap space.

Compaq AlphaServer ES40 Specifications

General

Manufacturer	Compaq
Model	AlphaServer ES40
Number of Processors	1 to 4
Memory Type	DDR SDRAM
Operating System	OpenVMS, Tru64 UNIX, Linux
Release Year	2000
CPU Speed	500 MHz to 1 GHz
Memory	Up to 32 GB
Storage	SCSI
Network	10/100/1000Base-T Ethernet
Form Factor	Rack-mounted

Summary

Chapter 1 System Overview

1.1 System Architecture

Describes the switch-based interconnect system that maintains constant performance.

1.8 Memory Architecture and Options

Explains the memory bus structure and available memory options.

1.10 Remote System Management Logic

Explains the System Power Controller (SPC) and RMC components.

Chapter 2 Troubleshooting

2.1 Questions to Consider

Lists questions to ask the system manager before troubleshooting.

2.3 Service Tools and Utilities

Lists available tools for testing, diagnosis, and recommendations.

Chapter 3 Power-Up Diagnostics and Display

3.1 Overview of Power-Up Diagnostics

3.2 System Power-Up Sequence

Details the step-by-step power-up sequence illustrated in a figure.

3.4 Power-Up Error Messages

Lists error messages displayed by RMC, SROM, and SRM at power-up.

3.5 Forcing a Fail-Safe Floppy Load

3.6 Updating the RMC

Chapter 4 SRM Console Diagnostics

4.1 Diagnostic Command Summary

Summarizes SRM diagnostic and related commands.

4.4 clear_error

4.5 crash

4.14 memtest

4.18 show error

Reports errors logged in FRU EEPROMs.

4.19 show fru

4.21 sys_exer

Chapter 5 Error Logs

5.1 Error Log Analysis with Compaq Analyze

Describes Compaq Analyze for determining hardware failure causes.

5.2 Fault Detection and Reporting

5.5 Windows NT Error Logs

Chapter 6 System Configuration and Setup

6.1 System Consoles

Describes system console programs in flash ROM.

6.2 Displaying the Hardware Configuration

6.3 Setting Environment Variables for Tru64 UNIX or OpenVMS

6.4 Setting Up a System for Windows NT

Guides on setting date, time, and hard disks before NT installation.

6.8 Setting SRM Security

Explains setting SRM security using password and secure commands.

6.9 Setting Windows NT Security

Describes password protection for Windows NT setup and startup.

6.10 Configuring Devices

6.11 Switching Between Operating Systems

Chapter 7 Using the Remote Management Console

7.1 RMC Overview

Provides an overview of RMC functions for system monitoring and control.

7.2 Operating Modes

7.4 Connecting to the RMC CLI

Details how to connect to the RMC command-line interface.

7.6 RMC Command-Line Interface

Lists RMC commands for system setup and management.

7.7 Resetting the RMC to Factory Defaults

7.8 Troubleshooting Tips

Lists possible causes and solutions for RMC troubleshooting.

Chapter 8 FRU Removal and Replacement

8.1 FRUs

8.5 Power Supply

8.7 Hard Disk Drives

8.8 CPUs

Explains how to add or replace CPU cards.

8.9 Memory DIMMs

Details how to replace memory DIMMs and MMBs.

8.10 PCI Cards

Describes installing or replacing PCI cards.

8.16 System Motherboard

Explains how to remove the system motherboard.

Appendix A SRM Console Commands

4-1 SRM Commands Used on ES40 Systems

Lists frequently used SRM console commands.

Appendix E Isolating Failing DIMMs

E.1 Information for Isolating Failures

E.2 DIMM Isolation Procedure

Provides a procedure to isolate a failing DIMM.