Specifications

80 IBM System z Personal Development Tool: Volume 3 Additional Topics
Figure 6-3 Shared emulated I/O
The Linux userid associated with the group controller must have the proper path information
set in the .bashrc file, just like that for the userids associated with each instance. All the
userids involved (the group controller and the instances) must be in the same Linux group;
this is group ibmsys in our examples. All the emulated volume files must be readable and
writable (possibly via the groupid) by all the userids involved.
3
For our example, assume we
have three userids defined (ibmgroup, ibmsys1, and ibmsys2) and all are in group ibmsys. We
could define three devmaps, as follows:
/home/ibmgroup/group1
[system]
members ibmsys1 ibmsys2 # userids for the instances
[manager]
name awsckd 8765
device A80 3390 3990 /z/Z9RES1
device A81 3390 3990 /z/Z9RES2
device A82 3390 3990 /z/Z9SYS1
device A83 3390 3990 /z/Z9RES3
device A84 3390 3990 /z/Z9USS1
device A90 3390 3990 /z/SARES1
[manager]
name awsosa 1223 path=F0 --pathtype=OSD
device 400 osa osa --unitadd=0
device 401 osa osa --unitadd=1
3
This is controlled by normal Linux permission settings for each file. For example, the command chmod g+w /z/*
could be used to make all the files in directory /z writable by members of the current group.
Linux
awsosa awsosa
Local x3270 sessions
aws3274
Local x3270 sessions
aws3274
Local x3270 sessions
CP
z/OS
TCP/IP
ibmsys1
zPDT Instance
CP
z/OS
TCP/IP
ibmsys2
zPDT Instance
Private
DASD
Linux TCP/IP
Shared
DASD
Private aws3274
Shared
aws3274
Tunnel
aws3274
Group
Controller
ibmgroup
Ethernet adapter