HP-UX Workload Manager User's Guide

Glossary
nPartitions
Glossary 519
launches run in the user’s initial
group—assuming those applications are not
specified in application records.
This is the group prmconfig, prmmove -i,
login, at, and cron use to determine where
to place user processes. If a user does not
have a user record or is not in a netgroup
that has a user record, the user default
group OTHERS becomes the user’s initial
group. The initial group is shown as
init_group in the following example:
users = user : init_group [alt_group1
alt_group2 ...] [, ...];
inode number HP-UX uses data structures
known as inodes to store data about files in a
file system. The file system device combined
with an inode number uniquely identifies a
given file.
Instant Capacity (iCAP) An HP Utility
Pricing Solutions product whose pricing
model is based on purchasing components
(processors, cell boards, and memory).
Instant Capacity allows you to purchase and
install additional components at a discount
from the regular purchase prise, as the
usage rights are not included. These Instant
Capacity components are inactive but
installed and ready for use. When extra
capacity is needed, you pay the remainder of
the regular purchase price for the usage
rights (through purchasing a Right to Use
codeword) to activate the components. (If the
regular price for the component is reduced
by the time the usage rights are purchased,
the remainder price is proportionally
reduced, providing additional savings.) After
obtaining usage rights, Instant Capacity
processors can be turned on by the Instant
Capacity software or during installation.
Processors are activated with the
icod_modify or icapmodify command while
HP-UX is running.
Previous versions of iCAP were referred to
as Instant Capacity on Demand, or iCOD.
See also Pay per use (PPU), Temporary
Instant Capacity (TiCAP).
logical CPU An execution thread contained
within a core. With Hyper-Threading
enabled, each core can contain multiple
logical CPUs. Logical CPUs are available
starting with HP-UX 11i v3 and the
Hyper-Threading feature. See also core,
Hyper-Threading.
logical volume group A single logical disk
device under Logical Volume Manager
(LVM) formed from one or more physical
disk drives. WLM manages disk bandwidth
on a logical volume group basis.
logical Volume Manager (LVM) A
disk-management tool used to partition
physical disk drives.
memory manager A daemon that
monitors use of real memory on the system
to ensure that workload groups are granted
their memory shares. This daemon also
enforces memory capping.
nPartitions Also known as nPars. HP
nPartitions offer both hardware and
software isolation among different instances
of an operating system running on a single
server.