AIX 5L Problem Determination - IBM Redbooks

10.5.6 rset registry
As mentioned previously, some resource sets in AIX 5L are created, by default,
for memory and CPU. It is possible to create different resource sets by grouping
two or more resource sets and storing the definition in the rset registry.
The rset registry services enable system administrators to define and name
resource sets so that they can then be used by other users or applications. In
order to alleviate the risks of name collisions, the registry supports a two-level
naming scheme. The name of a resource set takes the form
name_space/rset_name. Both the name space and rset_name may each be 255
characters in size, are case sensitive, and may contain only upper and lower
case letters, numbers, underscores, and periods. The name space of sys is
reserved by the operating system and used for rset definitions that represent the
resources of the system.
The SMIT rset command has options to list, remove, or show a specific resource
set used by a process and the management tools, as shown in Figure 10-9.
Figure 10-9 SMIT main panel for resource set management
To create, delete, or change a resource set in the rset registry, you must select
the Manage Resource Set Database item in the SMIT panel. In this panel, it is
also possible to reload the rset registry definitions to make all changes available
to the system. Figure 10-10 on page 292 shows the SMIT panel for rset registry
management.
Chapter 10. Performance problem determination 291