Failure Detection And Recovery; System Alerts - IBM System x3850 X5 Implementation Manual

IBM Midrange System Storage Implementation and Best Practices Guide, SG24-6363
This book represents a compilation of best practices for deploying and configuring IBM
Midrange System Storage servers, which include the DS4000 and DS5000 family of
products.
http://www.redbooks.ibm.com/abstracts/sg246363.html
IBM System Storage DS3000: Introduction and Implementation Guide, SG24-7065
This book introduces the IBM System Storage DS3000, providing an overview of its
design and specifications, and describing in detail how to set up, configure, and administer
it.
http://www.redbooks.ibm.com/abstracts/sg247065.html
Implementing an IBM/Cisco SAN, SG24-7545
This book consolidates critical information while discussing procedures and tasks that are
likely to be encountered on a daily basis when implementing and IBM/Cisco SAN.
http://www.redbooks.ibm.com/abstracts/sg247545.html
IBM XIV Storage System: Architecture, Implementation, and Usage, SG24-7659
This book describes the concepts, architecture, and implementation of the IBM XIV
Storage System.
http://www.redbooks.ibm.com/abstracts/sg247659.html
IBM Midrange System Storage Hardware Guide, SG24-7676
This book consolidates, in one document, detailed descriptions of the hardware
configurations and options that are offered as part of the IBM Midrange System Storage
servers, which include the IBM System Storage DS4000 and DS5000 families of products.
http://www.redbooks.ibm.com/abstracts/sg247676.html

7.10 Failure detection and recovery

A memory-expanded System x3690 X5 connects to the MAX5 via a QPI connection.
Therefore, a problem with the MAX5 is equivalent to a problem with the system itself. System
alerts and reporting on the x3690 X5 will respond to failures on the MAX5.

7.10.1 System alerts

On the system hardware level, use the System x3690 X5 alerting method to analyze failure
on the MAX5. Use the following tools:
Light path diagnostics (LPD)
Light path diagnostics is a system of LEDs on the various external and internal
components of the server. When an error occurs, LEDs are lit throughout the server. By
viewing the LEDs in a particular order, you can identify the source of the error.
Integrated Management Module (IMM)
The System x3690 X5 IMM informs you of the current system status at the System Status
panel, as shown in Figure 7-62 on page 370. Use IMM to investigate server conditions
when an error or abnormal status is observed.
Chapter 7. IBM System x3690 X5
369