Availability Guide for Application Design

Instrumenting an Application for Availability
Availability Guide for Application Design—525637-004
8-32
DSM Management Services
Figure 8-9 on page 8-32 shows the flow of event messages in a system. Messages
originate in the subsystem environment and are then sent by the subsystems and
applications to the primary and alternate collector processes. Collectors write event
messages to the log files. Distributors retrieve selected messages from the log files
and send them to processes, printers, terminals, and other destinations in the
operations environment.
Figure 8-9. Flow of Event Messages Through EMS
Primary
Collector
($0)
Forwarding
Distributor
Management
Application
To
Remote
Collector
Arrows indicate flow of event messages.
Solid lines represent original event-message stream.
Dashed lines represent filtered event-message stream.
Filter
Consumer
Distributor
Filter
Alternate
Collectors
Log
Files
Log
Files
Legend
Business
Applications
Log
Files
Printing
Distributor
Filter
Log
Files
Printer
HP
Subsystem
s
VHS
VST709.vdd