Specifications

84 IBM System z Personal Development Tool: Volume 3 Additional Topics
3270 devices (from the controller list that is inherited by all instances, and from the unique list
in each instance) can be accessed from the selection menu.
Yet another option exists for accessing shared aws3274 functions. This involves an inetd
service that automatically detects which 1090 instances are running and constructs a
selection menu based on this information. The inetd setup varies with different Linux
distributions.
Inherited devices
The group controller devmap can include definitions for device managers other than awsckd,
awsfba, awsosa, and aws3270. For example, it might contain the following:
/home/ibmgroup/group1
[system]
membersibmsys1 ibmsys2
[manager]
name awstape 4444
device 580 3480 3480
device 581 3480 3480
In this case each instance (ibmsys1 and ibmsys2) will have emulated 3480 tape drives at
addresses 580 and 581. There is no connection between these drives in the two instances. It
is exactly as though the awstape stanza appeared in the devmaps for each instance. The sole
purpose is to remove the necessity for defining these devices for each instance. This is not
very meaningful for a small device list as shown here, but might be more meaningful for
longer lists.