HP-UX Workload Manager User's Guide

Glossary
system administrator
Glossary 521
system’s CPU resources, which is half of 1
core on a system with only 1 active core, but
8 cores on a system with 16 active cores.
See also absolute CPU units.
rendezvous point A designated location for
holding performance data. The wlmsend
utility forwards data for a given metric to a
rendezvous point. The wlmrcvdc utility
monitors the rendezvous point, receiving the
data and sending it the WLM daemon.
secure compartment See the definition for
Secure Resource Partition.
secure mode The mode of operation in
which WLM (the daemons and the
monitoring GUI) can communicate securely
with certain other systems. Each system has
a security certificate that can be distributed
to the security repositories (truststores or
keystores) of other systems with which it
will communicate securely. WLM can
communicate securely with any system for
which it has a security certificate in its
truststore. For more information on security
certificates and setting up secure
communications, see wlmcert(1M).
Secure Resource Partition If you use the
HP-UX feature Security Containment, you
can create secure compartments to isolate
files and processes. WLM allows you to place
your secure compartments in workload
groups, providing automatic resource
allocation control to the compartments as
well. This combination of secure
compartments and workload groups is
known as Secure Resource Partitions.
shares Shares are the amounts of CPU
resources, real memory, or disk bandwidth
assigned to workload groups. A CPU share is
1/100 of a single core or 1/100 of each core (or
1/1000 of each core) on the system,
depending on the WLM operating mode.
SLA Service-level agreement. An agreement
or contract between an IT group or a data
center and its customer, based upon
measurable service-level objectives (SLOs).
SLO Service-level objective. Generally a
specific, measurable item/objective within a
broader, more comprehensive service-level
agreement (SLA) contract.
SLO violation An SLO violation occurs
when the performance of a workload does
not meet the stated goal for that workload.
When such a violation happens, WLM
adjusts CPU resource allocations, based on
SLO priorities and available CPU resources,
to better meet the SLO’s performance goal.
stretch goal Any goal that is not the
highest priority goal for the associated
workload. Stretch goals are met only after
the higher priority goals have been met. A
stretch goal indicates desired performance,
whereas a goal indicates required
performance. See also goal.
Strictly host-based A WLM configuration
is strictly host-based when it does not
include a prm structure.
system administrator A person
responsible for day-to-day system
configuration and maintenance. This person
has root user capabilities.