Tandem Failure Data System (TFDS) Manual

ManualsBrandsHP ManualsServerHP Integrity NonStop H-Series

Introduction to TFDS

HP Tandem Failure Data System (TFDS) Manual—540122-003

1-3

Components

These key components are represented in Figure 1-1:

Component Description (page 1 of 2)

Client A program instrumented to report failures to TFDS

Debug services The central broker for all debug events

eGarth A program used for processor failure analysis

EMS logs Files to which events are written by both applications and

subsystems

GCSC Global Customer Support Center, the HP support organization

for HP NonStop customers

Incident DB The TFDS incident database, which contains records of all

incidents received by TFDS. Three types of records are in the

incident database:

•

Master records contain incident symptom strings that

uniquely identify each incident in the incident database.

•

Detail records contain a key corresponding to a master

record, a stack trace, statistical information, and other

information about the incident.

•

Control records contain the version ID and the last detail

record number.

HP NED Dev The HP software development group that receives the results

of failures analyses

NonStop OS

utilities Reload

and RcvDump

Utilities that are used to reload a processor and receive its

processor memory dump to a disk file or tape

OSM A program that dials out TFDS incidents to your service

provider and tells TFDS if and when to proceed after a

processor failure

OS millicode Software that controls basic functions within the NonStop OS

SCF (Kernel

subsystem)

Provides the command interface to configure and control most

of the subsystems provided with the NonStop OS. The Kernel

subsystem, in conjunction with the Persistence Manager

($ZPM), controls key elements of a NonStop system that need

to be started automatically when the system is starting, and

also restarted if one of the components fails. The TFDS

monitor ($ZDMP) is a process pair under the control of the

Kernel subsystem. The TFDS helper processes are also under

the control of the Kernel subsystem., but are not NonStop

process pairs.