EMS Manual

EMS Components and Architecture
EMS Manual—426909-005
2-10
Consumer, Forwarding, and Printing Distributors
Depending on the nature of the destination, you can use one of four types of
distributors:
Consumer, Forwarding, and Printing Distributors
In general, you can initiate and terminate consumer, forwarding, and printing
distributors as needed. When you initiate a distributor, you can (in some cases, must)
provide:

The source of the event messages you want the distributor to process: the current
primary or alternate collector log files (on a local or remote node) or a specific log
file

The destination of event messages selected by the distributor (a display device, an
EMS collector on another node, or a management application)

The generation time stamp of the earliest event message you want the distributor
to process (or none, if you want only the most recent event messages)

The filter or filters you want the distributor to use to select event messages to send
to the destination

The burst detection and suppression (BDS) criteria you want the distributor to use
Not all option combinations are allowed, and some option combinations are allowed
but not commonly used. For more information about configuring distributors, see
Section 12, Configuring EMS
.
Compatibility Distributor ($Z0)
The compatibility distributor provides continuity between EMS and the prior console-
message mechanism and allows message viewing during system load. $Z0 is the only
mechanism for viewing messages during system load.
Because its purpose is so specialized, the compatibility distributor is not initiated and
controlled in the same way as other types of distributors. You can configure the
compatibility distributor only during system generation, and only one compatibility
distributor is allowed per system (node). The distributor can be stopped by the
CDISTSTOP option of the EMSCCTRL utility.
Consumer Sends selected event messages to a requesting management application.
Forwarding Sends selected event messages to an EMS collector on another node in
the network or to an alternate collector on the same node.
Printing Obtains formatted text for selected event messages and writes it to a
printer or other display device, or to a file. When a routing filter is used,
unformatted events can be routed to selected distributor processes.
Compatability Filters event messages according to a fixed (rather than a user-specified)
criterion, obtains formatted text for the selected primary collector event
messages, and writes it to a console device.