IBM RS/6000 - Manual (Page 182)

Table 33 on page 158 shows the resources required to classify a
machine as having a stand-alone, diskless or dataless configuration in
the NIM environment. In the table, the resources that are accessed
locally are indicated by L, and the resources that are accessed remotely
are indicated by R.
Table 33. NIM Client Configurations
Machine
Types
Resources Required to Define Configuration Type
/(root) /home /tmp /usr boot image paging dump
Stand-alone L L L L L L L
Diskless R R R R R R R
Dataless R R or
L
R or
L
R R L R
and
L
9.1.2 NIM Objects
The NIM environment is composed by objects that represent networks, machines
and resources.
NIM stores information about the physical environment as objects in the NIM
database. There are three
classes of objects:
Networks
Machines
Resources, which are files and directories required to perform NIM operations
There are different types of objects within each class. Each object has additional
characteristics called attributes. For example, if you define several token-ring
networks in your NIM environment, one of them may run at a speed of 4 Mb/s,
while another may run at 16 Mb/s. The ring speed is an attribute of the network
object.
Table 34 shows the three NIM object classes and the types for each class:
Table 34. NIM Object Classes
Machines Resources Networks
Diskless SPOT Token-ring
Dataless lpp-source Ethernet
Stand-alone mksysb FDDI
Other resources
9.1.2.1 NIM Object Names
Each object in the NIM environment has a unique name that you specify when the
object is defined. These names are independent of any of the physical
characteristics of the objects. For example, you can use the host name of a
system as the machine object name in the NIM environment, but these names are
independent of each other; if you change the name of the machine in the TCP/IP
hosts table, this modification will not be reflected in the NIM environment.
However, you do not need to change the NIM machine object name; the machine is
identified by its IP Address, which is an attribute of the machine object.
158 Introduction to PCI-Based RS/6000 Servers