STREAMS/UX for the HP 9000 Reference Manual

Installation and Veriﬁcation of STREAMS/UX

Conﬁguring STREAMS-based Pipes with SAM

Configuring STREAMS-based Pipes with SAM

System Administration Manager (SAM) allows you to conﬁgure various

tunable parameters. After installation is complete, all of the STREAMS/UX

parameters are set to a default value and do not require any modiﬁcations.

You may, however, want to change one tunable parameter. If you want to use

STREAMS-based pipes, you will need to change this default value.

NOTE: By turning on STREAMS-based pipes, ALL of the pipes created by the pipe(2)

command on the system will be STREAMS-based.

You can use SAM to conﬁgure STREAMS-based pipes. Follow the steps

below:

1 In SAM, choose “Kernel Configuration,” followed by “Configurable

Parameters.”

2 Highlight the “streampipes” label, then select “Modify Configurable Parameters”

from the Actions menu.

3 Under the label “Choose One to Modify Parameters,” choose “Specify New

Formula Value.” Set the formula value to 1 (one), then press OK.

4 In the File menu, choose exit. Before SAM exits, it will ask you when you want

to have the new kernel created. Choose “Create a New Kernel Now.”

5 Press OK. The new kernel will be built and moved into place.