Symbols |
|---|
| 90th percentile | | That utilization value in the selected time interval
which 10% of the utilization values fall above, and 90% fall below
or are equal to.
|
|---|
A |
|---|
| Accelerated Virtual
Input/Output | | See AVIO.
|
|---|
| activate | | When referring to a logical server, activate means to make a logical server definition available to
be deployed into the computing environment. An active logical server
is one that is currently operating within the computing environment.
An inactive logical server is one that has been defined but is not
currently operating within the computing environment.
|
|---|
| activate cell | | The process of changing an inactive
cell into an active cell. A cell is activated when it is integrated into an nPartition. A cell can
also be activated through cell online activation.
|
|---|
| activate I/O chassis | | The process of changing an inactive
I/O chassis into an active I/O chassis. A chassis is activated when the cell to
which it is attached is activated.
|
|---|
| activated core | | A core that has been turned
on by the HP Instant Capacity (iCAP) software or during installation. Cores
are activated with the icapmodify command (or the vparmodify command in an HP-UX virtual partition) while
HP-UX is running.
|
|---|
| active cell | | A cell that is available
for use by the software running on the nPartition. This implies that
the cell's cores and memory (and I/O, if the cell is attached
to an active I/O chassis) are all available
for use by the OS. An active cell has the following characteristics: It is present and populated. It is assigned to an nPartition. It is released from boot-is-blocked.
|
|---|
| active I/O chassis | | An I/O chassis with an
initialized link to the system bus adapter (SBA). The SBA link must be initialized for software running on the nPartition
to be able to use I/O cards installed in the I/O chassis.
|
|---|
| active logical
server | | A logical server that has
been bound to both an HP SIM node and a VSE workload, and is bound to specific storage. Active logical
servers can be in one of two states: powered on or powered off. See also inactive logical server, logical server.
|
|---|
| active nPartition | | An nPartition is active
if at least one of the cells in the nPartition is active. See also inactive nPartition.
|
|---|
| add-on system | | A system that has been converted to an HP Instant Capacity (iCAP) system. This process is performed by an HP service representative.
|
|---|
| advisory mode | | SRD advisory mode lets
you see what requests HP Global Workload Manager (gWLM) would make for a compartment without changing its resource allocation. See also managed mode, deploy.
|
|---|
| agent | | A program with a well-defined task that runs in
the background and that is used to capture information or do processing
tasks.
|
|---|
| allocation | | The amount of a resource that HP Global Workload Manager (gWLM) sets aside for a compartment after arbitrating resource requests
from the policies for all the compartments. In managed mode, gWLM makes an allocation available
to a compartment. In advisory mode, gWLM reports what the allocation
would be without changing resource allocations on a system. See also entitlement.
|
|---|
| annual projected
growth rate | | The rate at which utilization of a resource is
projected to change.
|
|---|
| application | | A logically related set of processes active on
a host system (a running application ) and/or
a logically related set of files on a host system disk (an installed application). HP Application Discovery recognizes applications based
on standard package installation, templates that are shipped with the
product, and templates that are defined by users.
|
|---|
| application discovery | | The process of finding applications and gathering
performance and location data about them for display and use.
|
|---|
| association | | In HP Systems Insight Manager (HP SIM), an association is created by discovery and
identification of HP SIM system objects that are
then associated with other objects. One type of association is containment.
For example, clusters contain members, complexes contain nPartitions, and OS images contain resource partitions. In HP Global Workload Manager (gWLM), a policy-workload association tells gWLM which policy to use to manage that workload's resource allocation.
|
|---|
| available resources | | Cells and I/O chassis that are not assigned to an nPartition; or cores, memory, and I/O
resources that are not assigned to a virtual partition. These resources are available to be used in new partitions or can
be added to existing partitions.
|
|---|
| average | | The sum of all the utilization values divided
by the number of data points for the selected time interval.
|
|---|
| AVIO | | Accelerated Virtual Input/Output. An I/O protocol
that improves virtual I/O performance for network and storage devices
used within the Integrity VM environment. The protocol also enables
support for a greater number of virtual I/O devices per guest. Participating
guests must include a virtual I/O device configured to use the AVIO
protocol.
|
|---|
B |
|---|
| backing store | | A device that is accessible to the Integrity VM Host and maps to a storage device on a virtual machine.
|
|---|
| base cabinet | | A compute cabinet that
can be used as the only compute cabinet in a complex, or as half of a dual compute cabinet complex. A base cabinet is
always physically the left cabinet in the pair (when viewed from the
front) and is always the cabinet that contains the Service
Processor. See also cabinet, expansion cabinet.
|
|---|
| base cell | | A cell in a partitionable
system. In future versions of partition management software, base
cells may be distinguished from other cell types. A base cell does not participate in interleaved
memory if the cell is online activated and an online re-interleave is not done,
or if the cell's failure usage flag is
set to Base, No Interleave when the
partition is booted after a hardware failure. See also floating cell.
|
|---|
| baseline | | A timeless demand profile used to generate demand profiles in forecasting.
|
|---|
| BIB | | Boot-is-blocked. The state of a cell that is powered on but not allowed to boot. BIB exists as soon as
power is enabled to a cell, although the system firmware completes its power-on self-test sequence before waiting for BIB
to be cleared by the Service Processor. BIB
is cleared when the Service Processor is told to boot an nPartition. BIB is also cleared when the system firmware
determines that there is no active Service Processor in a complex.
|
|---|
| BladeSystem | | HP BladeSystem is an infrastructure in a box that
can support a combination of virtual machines, storage blades, and server
blades. It comprises server blade compute nodes, integrated
connectivity to data and storage networks, and shared power subsystems. See also BladeSystem enclosure, BladeSystem Integrated Manager.
|
|---|
| BladeSystem enclosure | | Hardware solution for consolidating server blades and all supporting infrastructure elements
(such as storage, network, and power) into a single unit. See also BladeSystem Integrated Manager.
|
|---|
| BladeSystem Integrated
Manager | | A component in HP Systems Insight Manager (HP SIM) that provides streamlined
management for the entire HP BladeSystem product
family. It enables users to quickly navigate their HP BladeSystem environments, including server blades, enclosure
infrastructures, racks, and integrated switches, through automatically
generated blade-rack picture views and hierarchical trees. Accessible
from an icon on the HP Virtualization Manager's Visualization view.
|
|---|
| boot-is-blocked | | See BIB.
|
|---|
| bound core | | For vPars versions prior
to A.04.xx, a core that can process interrupts for a virtual partition. Bound cores cannot be migrated from one virtual partition to another
if either of the partitions is running. Every virtual partition must
have at least one bound core. See also unbound core.
|
|---|
| business period | | The time interval (a day or a week) for which
to create an HP Capacity Advisor report.
|
|---|
C |
|---|
| cabinet | | The physical enclosure that contains cells or I/O chassis. A cabinet also includes hardware that provides power and cooling.
Some cell-based servers support cabling several cabinets together to form a single complex. See also base cabinet, cabinet, compute cabinet, expansion cabinet, I/O expansion cabinet.
|
|---|
| cabinet blowers | | The main cooling fans on top of HP Superdome
server compute cabinets. They provide the main airflow through the cabinet.
|
|---|
| Capacity Advisor | | HP Capacity Advisor. The HP VSE Management Software application
that performs analysis and planning of workloads on a system or across
a set of systems.
|
|---|
| capacity planning | | The analysis and planning of workloads on a system or across a set of systems.
|
|---|
| capacity-planning
simulation | | The process of combining workload demand profiles, as prescribed by a scenario, to estimate
the demand profiles of the systems that contain the workloads. Statistics
gathered from the simulation can be summarized in reports.
|
|---|
| CC | | Cell controller. A chip located on every cell board that has interfaces to the cores and memory on the cell. The cell
controller also has an interface to a system bus adapter and to the fabric. The cell controller maintains data coherency
across the cells in an nPartition.
|
|---|
| cell | | A circuit board that contains processors and
memory, all controlled by a cell controller
(CC). A cell is the basic building
block of an nPartition in a complex.
|
|---|
| cell controller | | See CC.
|
|---|
| cell local memory | | See CLM.
|
|---|
| cell OLA | | Cell online activation. The process of changing
an inactive cell to an active cell in a booted partition without requiring a reboot. If such a cell
is attached to a powered-on I/O chassis, then
the chassis is also activated as part of the cell OLA. Some operating
systems do not support online activation of cells. See also floating cells.
|
|---|
| cell online activation | | See cell OLA.
|
|---|
| cell power on/off | | Enable or disable power to a cell. A cell cannot become active until power has been enabled. It must be inactive before power can be
disabled. A cell location must be populated in order to enable power.
Physical removal of a cell must not occur until power has been disabled. Powering a cell on or off will also power on
or off an I/O chassis that is attached to the
cell.
|
|---|
| cell-based server | | A server in which all cores and memory are contained in cells, each of which can be assigned for exclusive use
by an nPartition. Each nPartition runs its
own instance of an operating system.
|
|---|
| central management
server | | See CMS.
|
|---|
| chassis log | | Term used for event log on cell-based servers based on the PA-8700 processor.
|
|---|
| CLI | | Command line interface. An operating system shell
for direct entry of commands by the user. See also GUI.
|
|---|
| clipping | | In HP Global Workload Manager (gWLM), the limiting of a policy's resource request. Types of clipping include: Compartment clipping. A workload's compartment is already
at its maximum size (for example, as set using a vPars command), but policy requests are trying to increase it beyond its
configured maximum. Policy clipping. A workload is receiving the maximum CPU allocation allowed
based on its policy; however, the request would be higher if the policy
maximum were higher. Priority clipping. There are not enough resources for the compartments at lower
priority levels because resources are required for compartments at
higher priority levels. Note that resources are allocated for fixed policies, OwnBorrow policies,
and policy minimums before gWLM considers priorities.
|
|---|
| CLM | | Cell local memory. Cell memory that is not interleaved. A page of cell
local memory comes from a single cell. Cell local memory provides
better performance than interleaved memory for processes running on
the cores in the cell that
contains the memory. See also interleaved memory.
|
|---|
| cluster | | A set of two or more systems configured together to host workloads, such that users are unaware
that more than one system is hosting the workload.
|
|---|
| CMS | | Central management server. A system in the management
domain that executes the HP Systems Insight Manager (HP SIM) software. All central
operations within HP SIM are initiated from this
system.
|
|---|
| codeword | | The mechanism used with HP Instant Capacity (iCAP) versions
B.06.x and later for adjusting available usage rights for system components (RTU codewords), for applying an amount of temporary capacity to a system
(TiCAP codewords), and for applying Sharing
Rights to a GiCAP system to enable the creation
of one or more groups (GiCAP codewords). Codewords are purchased from
HP and retrieved from the Utility Pricing Solutions Portal. See also RTU, usage rights.
|
|---|
| command line interface | | See CLI.
|
|---|
| compartment | | An nPartition, virtual partition, virtual machine, or resource partition whose resources are allocated by HP Global Workload Manager (gWLM). Multiple compartments are grouped to form a shared resource domain (SRD). The compartments all share the resources of the SRD. A compartment
can be in only one SRD. Each compartment holds a workload. gWLM manages each workload's resource allocation by adjusting
the resource allocation of its compartment.
|
|---|
| compartment consumption | | The amount of a resource being consumed by all
of the cores in a compartment. For example,
if the processes in a compartment consume a total of two cores, the
compartment consumption of cores is two.
|
|---|
| Compartment Max | | The maximum amount of a resource that a compartment can have. This value is the maximum resource
allocation allowed by the underlying compartment. However, HP Global Workload Manager (gWLM) might reduce this number at times because an SRD has a large number of compartments and each compartment must receive
a minimum portion of the resources. See also Max Size.
|
|---|
| Compartment Min | | The minimum amount of a resource that a compartment can have. This value is the minimum resource
allocation required by the underlying compartment. See also Min Size.
|
|---|
| compartment utilization | | The compartment consumption of a given resource as a percentage of the compartment's size. For example, if a compartment's consumption is two cores and
its size is four cores, the compartment utilization of cores is 50%.
|
|---|
| complex | | A complex includes one or more cabinets that are cabled together
and all of the hardware resources that they contain. A complex has
a single Service Processor. See also server, system.
|
|---|
| complex profile | | The data structure managed by the Service Processor that represents the configuration of
a complex. The complex profile consists of
the Stable Complex Configuration Data for the entire complex, and Partition Configuration Data for each nPartition
in the complex.
|
|---|
| compute cabinet | | Any cabinet containing cells. An I/O expansion cabinet is not a compute cabinet.
|
|---|
| conditional policy | | A policy for managing
a workload's compartment. This type of policy indicates a policy that HP Global Workload Manager (gWLM) should use when a certain condition occurs.
|
|---|
| configured processor | | A processor that has been configured as the boot
console handler and is now available for activation by the HP Instant Capacity (iCAP) software.
|
|---|
| constraints | | Resource allocation restrictions imposed by either
the customer (for example, workload placement
restrictions), or the HP Virtual Server Environment (for example,
a cell cannot be subdivided across an nPartition). See also policy.
|
|---|
| convergence rate | | Indicator of workload sensitivity
to changes in CPU allocation. Larger values produce larger changes
in the allocation, causing faster convergence on the policy's
target; smaller values produce slower convergence on the target. The
default rate is 1.0.
|
|---|
| core | | The actual data-processing engine within a processor.
A single processor might have multiple cores, and a core might support
multiple execution threads. See also processor.
|
|---|
| core cell | | Each nPartition has one cell that system firmware selects
at boot time to be the core cell. This cell must be attached to an I/O chassis that contains core I/O. The core cell has the following unique characteristics: The nPartition's console
uses the partition console interface in the core I/O that is attached to the core
cell. The nPartition's
real-time clock is located in the core cell's processor dependent hardware. The core cell is used
by system firmware as a master copy for some
internal data structures. The Service
Processor passes event
logs to the core cell. The monarch
processor is on the core cell. Compatibility of other
cells in the nPartition is checked against the core cell.
|
|---|
| core I/O | | I/O hardware that provides the base set of I/O
functions required by every nPartition. Core
I/O includes the partition console interface and 10/100 BaseT network interface.
|
|---|
| core-cell choices | | Information in each nPartition's Partition Configuration Data that guides system firmware in choosing the
nPartition's core cell. Cells that are
identified as core cell choices are tried first (in the order specified)
before system firmware applies its default core-cell selection algorithm.
|
|---|
| cross-bar chip | | See XBC.
|
|---|
| current virtual
partition | | The virtual partition that
is running the vPars command currently being
executed. See also local nPartition.
|
|---|
| custom policy | | A policy for managing
the resources available to a workload. This type of policy allows you to provide your own metric. HP Global Workload Manager (gWLM) then manages an associated workload, adjusting the resource allocation
as needed based on the value of the metric. You update values for
the metric using the gwlmsend command on the operating
system instance where the workload is running.
|
|---|
D |
|---|
| deactivate cell | | The process of changing an active
cell into an inactive cell. A cell becomes inactive when a shutdown for
reconfiguration operation is performed on its nPartition. A cell can also be deactivated by setting
its use-on-next-boot value to No and then performing a reboot for reconfiguration operation on the nPartition.
|
|---|
| deactivate I/O
chassis | | The process of changing an active
I/O chassis into an inactive I/O chassis.
An I/O chassis is deactivated when the cell to which it is attached is deactivated.
|
|---|
| deactivated core | | See inactive core.
|
|---|
| deconfigured processor | | A processor that has not yet been configured
at the boot console handler. HP Instant
Capacity (iCAP) and HP Pay per use software cannot activate
a processor that is deconfigured.
|
|---|
| demand
profile | | A set of resource-demand readings made at regular
intervals for some period of time. The demand profile of a workload, system, or complex is used when doing capacity planning. Demand profiles can be based on historical
data or computed as part of a forecast.
|
|---|
| deploy | | In HP Systems Insight Manager (HP SIM), to implement one or more components such as software, drivers,
or licenses, rendering them under control of HP SIM. In HP Global Workload Manager (gWLM), to enable
gWLM control of a shared resource domain
(SRD). Deploying
an SRD in managed mode allows gWLM to control
resource allocation within the SRD. For example, in an SRD that is
based on processor sets (PSETs) for compartments, deploying an SRD in managed mode allows gWLM to migrate processing cores between PSETs. When deploying an SRD in advisory
mode, gWLM reports only what the allocation would be without
actually affecting resource allocations on a system.
See also undeploy.
|
|---|
| DIMM | | Dual In-line Memory Module. A standard memory-chip
format.
|
|---|
| discovery | | In system management
applications, the process of finding and identifying network objects.
In HP Systems Insight Manager (HP SIM), discovery finds and identifies all the HP systems
within a specified network. In HP Application Discovery, discovery finds
and identifies all running and installed applications within a specified
network. HP Global Workload Manager (gWLM) can examine
systems that you specify and automatically identify the nPartitions, virtual partitions, virtual machines, processor sets (PSETs), and Fair-Share Scheduler (FSS) groups that are present on those systems.
gWLM can also identify iCAP and TiCAP as well as GiCAP groups.
You then form SRDs using the
discovered items.
|
|---|
| discovery ratio | | As used by HP Application Discovery, this is a comparison
of matched to unmatched processes running on a host. The ratio is the percentage of processes that
can be matched to discovered applications.
|
|---|
| Dual In-line Memory
Module | | See DIMM.
|
|---|
| dynamic processor
migration | | A vPars feature that allows
you to add unbound cores to
a virtual partition, or remove them from a virtual partition, while
the virtual partition is running.
|
|---|
E |
|---|
| echelon | | A set of DIMMs installed as a single failure group. If any DIMM in the echelon
fails or is deconfigured, the entire echelon is deconfigured. Some
HP server models use an echelon size of 4 DIMMs; others use an echelon
size of 2 DIMMs.
|
|---|
| Effective Max | | See Max Size.
|
|---|
| Effective Min | | See Min Size.
|
|---|
| entitlement | | The amount of a system
resource (for example, processor) that is guaranteed to a virtual machine. The actual allocation of resources to
the virtual machine may be greater or less than its entitlement depending
on the virtual machine's demand for processor resources and the
overall system processor load. The amount of a resource
that is set aside for a compartment.
|
|---|
| event log | | Information about system events made available
from the source of the event to other parts of a server complex. An event log indicates what event has occurred,
when and where it happened, and its severity (the alert level). Event
logs do not rely on normal I/O operation. The term “chassis log” was used
in place of “event log” on earlier server models.
|
|---|
| expansion cabinet | | A specially configured compute cabinet that can be connected to a base cabinet to
create a dual-compute-cabinet complex. The expansion cabinet is always
the right-hand cabinet in the pair (when viewed from the front) and
contains a hub to connect it to the Service Processor in the base cabinet. See also cabinet, IOX.
|
|---|
F |
|---|
| fabric | | Within a complex, the
interconnect composed of cross-bar chips
(XBC) and cells.
|
|---|
| failover | | The operation that takes place when a primary
service (network, storage, or CPU) fails, and the application continues
operation on a secondary unit.
|
|---|
| failure usage flag | | A per-cell flag in the Partition Configuration Data that specifies how the cell
will be reactivated and whether it will participate in memory interleave after a hardware failure.
|
|---|
| Fair-Share Scheduler
group | | See FSS group.
|
|---|
| field replaceable
unit | | See FRU.
|
|---|
| fixed policy | | An HP Global Workload Manager (gWLM) policy for managing
a workload's compartment. This type of policy allocates a workload's
compartment a fixed (constant) amount of CPU resources. Fixed policies do not have a settable priority.
gWLM satisfies compartment minimums first; next, it satisfies both fixed policies and policy minimums; finally, it satisfies
other policy types.
|
|---|
| floater processor | | See unbound core.
|
|---|
| floating cell | | A cell in a partition that does not participate in interleaved
memory (all of the cell's memory is used as cell local memory). A floating cell cannot
be a partition's core cell. It is generally easier
to perform cell online activation of a floating
cell than of a base cell, because no online
re-interleave operation is needed. However, if a floating cell is
attached to an I/O chassis, then the ability
to do online activation is limited by the ability to do online activation
on the chassis and cards in the chassis.
|
|---|
| forecast | | A prediction of system utilizations and workload demand profiles for some future
time.
|
|---|
| forecast data range | | A time interval specifying the set of historical
data to use for generating a forecast.
|
|---|
| forecast model | | A combination of a forecast data range and a set of annual projected growth rates that are used to estimate
future utilization.
|
|---|
| free cell | | A cell that is not assigned
to an nPartition. This applies to any cell
location, regardless of whether the slot exists or is populated.
|
|---|
| FRU | | Field replaceable unit. Hardware that can be
replaced by a field engineer. This includes all components that are hot-pluggable or hot-swappable. It also includes many components that must be powered off to be
replaced.
|
|---|
| FRU ID | | Data that provides identification information
about a field replaceable unit (FRU), such as the part number, serial number,
revision and test history. The FRU ID typically is stored in an EEPROM
that is located on the FRU.
|
|---|
| FSS group | | Fair-Share Scheduler group. A group of processes
that has its CPU allocation managed by the HP-UX FSS. FSS groups allow
you to allocate fractions of cores, rather than only whole cores,
to the processes in the group.
|
|---|
G |
|---|
| GiCAP | | HP Global Instant Capacity. Software that enables
you to move usage rights for Instant Capacity components within a
group of servers. The GiCAP Group Manager page can be launched from
an icon on the HP Virtualization Manager's Visualization view. See also iCAP, iCAP component, TiCAP.
|
|---|
| Global Instant
Capacity | | See GiCAP.
|
|---|
| Global Workload Manager | | See gWLM.
|
|---|
| GNI | | Global noninterleaved memory, another name for cell local memory (CLM).
|
|---|
| guest | | See virtual machine.
|
|---|
| guest OS | | The operating system that is running on a virtual machine.
|
|---|
| GUI | | Graphical User Interface. A visually-oriented
user interface in which components and actions can be selected by
clicking on objects and menus instead of typing command lines. See also CLI.
|
|---|
| gWLM | | HP Global Workload Manager. The HP VSE Management Software application
that allows you to centrally define resource-sharing policies that you can use across multiple
HP servers. These policies increase system utilization and facilitate
controlled sharing of system resources. gWLM's monitoring abilities
provide both real-time and historical monitoring of the resource allocation.
|
|---|
H |
|---|
| HA | | High availability. The ability of a server or
partition to continue operating despite the failure of one or more
components. High availability requires redundant resources, such as
CPU resources and memory, in specific combinations. The high-availability status of a device group
is usually indicated by the following notation.
|
|---|
| hard reset | | A hard reset, like the reset (RS) command available at the Service
Processor prompt, immediately stops the operating system
and all applications, without forcing a crash dump. See also TOC.
|
|---|
| headroom | | In general, the amount of a computing resource
that is available on a system after all requirements for applications
on the system are accounted for. In HP Capacity Advisor, requirements for applications
include the utilization limits set for each
application. See also relative headroom.
|
|---|
| high availability | | See HA.
|
|---|
| host | | A system or partition
that is running an instance of an operating system. The physical machine
that is the HP Integrity Virtual Machines VM Host for one or more virtual machines.
|
|---|
| host name | | The name of a system or partition that is running
an OS instance.
|
|---|
| host OS | | The operating system that is running on the host
machine.
|
|---|
| hot-pluggable | | A hardware component that can be added to or
removed from a cabinet, with software intervention,
while the cabinet remains operational. Examples are PCI I/O cards, cells, and I/O chassis. These components are hot-pluggable only to the
extent that operating system and hardware support is present. For example, with the initial HP-UX 11i
release, a cell is hot-pluggable because it can be physically installed
into a "hot" cabinet and powered on, but that version of the OS does
not support cell online activation. See also hot-swappable, FRU.
|
|---|
| hot-swappable | | A hardware component that can be added to or
removed from a cabinet, without software intervention,
while the cabinet remains operational. Examples are bulk power supplies, cabinet blowers, and I/O fans.
These items are hot-swappable if their removal does not create an N-1 HA situation. For example, if
a cabinet's power status is N+1, then any
one of the bulk power supplies can be removed without affecting the
operation of the cabinet. See also hot-pluggable, FRU.
|
|---|
| HP SIM | | HP Systems Insight Manager (HP SIM).
The platform and framework on which the HP VSE Management Software products
are deployed.
|
|---|
| hyper-threading | | Intel® Hyper-Threading Technology. The ability of certain processors to
create a second virtual core that allows additional
efficiencies of processing. This is not a true multi-core processor,
but it adds performance benefits. True multi-core processors typically
deliver much greater performance than equivalent hyper-threading technology.
|
|---|
I |
|---|
| I/O bay | | The physical location in a cabinet where an I/O support structure is located.
|
|---|
| I/O chassis | | A PCI or PCI-X card cage and associated backplane that contains a system bus adapter
and one or more local bus adapters. An I/O chassis may or may not be physically removable.
|
|---|
| I/O chassis enclosure | | See ICE.
|
|---|
| I/O Dependent Code | | See IODC.
|
|---|
| I/O expansion cabinet | | See IOX.
|
|---|
| I/O fans | | The fans that are used to cool an I/O chassis. Found in both I/O expansion cabinets and compute cabinets. I/O fans
are distinct from cabinet blowers.
|
|---|
| I/O support structure | | A physical structure in cabinets where one or more I/O chassis are located. In some cabinets the I/O support
structure is referred to as an I/O support tray, in other cabinets
as an I/O chassis enclosure (ICE). The different names reflect the different physical
characteristics of the support structures. The I/O support structure
is removable in some cabinet types (for example, I/O expansion
cabinet) and is not removable in others.
|
|---|
| iCAP | | HP Instant Capacity. The HP Utility Pricing Solutions
product that allows you to purchase and install additional processing
power through the use of a two-step purchase model. Initially, you
purchase system components (cores, cell boards, memory) at a fraction of the
regular price because 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
price for the usage rights 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. Earlier versions of iCAP were referred to as
Instant Capacity on Demand, or iCOD. See also GiCAP, TiCAP.
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| iCAP component | | Also called a component without usage rights,
an HP Instant Capacity (iCAP) component is a core, cell board, or memory that is physically installed in
an iCAP system but is not authorized for use. Before it can be used,
a right to use (RTU) must be purchased and a codeword must be
applied to the system.
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| iCAP core | | Also referred to as a core without usage rights,
a core that is physically installed in an HP Instant Capacity (iCAP) system
but does not have usage rights and is not activated. After obtaining
usage rights, iCAP cores can be turned on by the iCAP software or
during installation. Cores with usage rights are activated with the icapmodify command (or the vparmodify command in a virtual partition) while HP-UX is running.
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| ICE | | I/O chassis enclosure. A specific type of I/O bay on some models of HP Superdome server. An ICE
provides mechanical and electrical support for up to two 12-slot I/O chassis.
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| iCOD | | See iCAP.
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| iCOD component | | See iCAP component.
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| iCOD core | | See iCAP core.
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| inactive cell | | A cell that is not available
for use by software running on an nPartition. This term is usually used to describe a cell that has the following
status (though any cell that is not active is by definition inactive): The slot is present and
is populated. The cell is assigned
to an nPartition.
See also active cell.
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| inactive core | | A core that either has
not yet been activated or that has been turned off by the HP Instant
Capacity iCAP software and returned to the
pool of inactive cores. These cores are available for activation.
New HP-UX processes are not assigned to a deactivated core, and all
processes running on the deactivated core are migrated to other cores
(with the exception that interrupt handlers might not be migrated
from deactivated cores). See also activated core, iCAP core.
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| inactive I/O chassis | | An I/O chassis that is
not available for use by the software that is running on an nPartition. An I/O chassis is inactive when it is attached
to an inactive cell. See also active I/O chassis.
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| inactive logical
server | | A logical server that contains
metadata but is not currently bound to a specific physical server
or system. Inactive logical servers that have never been activated
might or might not be bound to storage. See also active logical server, logical server.
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| inactive nPartition | | An nPartition in which
all of its cells are inactive. See also active nPartition.
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| initial system
loader | | See ISL.
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| Instant Capacity | | See iCAP.
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| Instant Capacity
component | | See iCAP component.
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| Instant Capacity
core | | See iCAP core.
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| Integrity Virtual
Machines | | See Integrity VM.
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| Integrity Virtual
Machines Manager | | See VM Manager.
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| Integrity VM | | HP Integrity Virtual Machines. A soft partitioning virtualization
product that allows you to install and run multiple systems (virtual machines) on the same
physical host system (Integrity server or nPartition). The Integrity
server or nPartition acts as a VM Host for
the virtual machines (also referred to as guests). The virtual machines share a single
set of physical hardware resources, yet each virtual machine is a complete environment in itself and runs its own instance of
an operating system (referred to as a guest OS). See also virtual machine, VM Host.
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| Intelligent Platform
Management Interface | | See IPMI.
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| interleaved memory | | Memory that can be interleaved across more than
one cell. Interleaved memory presents a single logical memory address
range that is mapped to different physical memory ranges across multiple
cells. See also CLM.
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| invalid data | | In HP Capacity Advisor, data that could potentially skew
reporting results and lead to inaccurate or misleading conclusions
when capacity planning. Examples of events that Capacity Advisor can
recognize as potential sources of invalid points include the following: System downtime during
a data collection period Data manually marked by
the user as invalid Partial collection from
a virtual machine or a VM host
See also missing data, valid data.
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| IODC | | I/O Dependent Code. IODC provides a uniform,
architected mechanism to obtain platform information. IODC is composed
of two parts. The first part is a set of up to 16 bytes that identify
and characterize hardware modules. The second part is a set of entry
points that provide a standard procedural interface for performing
module-type dependent operations such as boot device, keyboard, and
display device initialization and Input/Output routines. IODC is documented
in the PA-RISC 1.1 I/O Firmware Architecture Reference Specification. NOTE: this link will take you
outside of this help system. Your browser must have access to the
internet to follow this link.
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| IOX | | I/O expansion cabinet. A cabinet that contains I/O devices (card cages) but no cells. See also expansion cabinet.
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| IPMI | | Intelligent Platform Management Interface. A
set of standards for remote multiplatform server management. IPMI
uses intelligent platform management hardware and a message-based
interface.
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| ISL | | Initial system loader. This program implements
the portion of the bootstrap process that is independent of the operating
system (OS). The ISL is loaded and executed after self-test and initialization
have completed successfully. It provides an interface to select an
OS or load a predefined default OS.
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| Itanium®-based systems | | Systems built on any version of the Intel® Itanium® architecture.
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L |
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| LBA | | Local bus adapter. A device that connects the
system bus adapter (SBA) to an I/O bus, such as PCI. Multiple LBAs are connected to a single SBA.
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| leaf node | | An object at the lowest level of a graphical
tree view. Leaf nodes have no child nodes.
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| local bus adapter | | See LBA.
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| local nPartition | | Used in a context where an nPartition command is being executed, the local nPartition is the nPartition
that is running the command. See also current virtual partition, remote nPartition.
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| logical server | | A feature provided by HP Virtualization Manager,
a logical server is a set of configuration and metadata that you create,
activate, and assign to operate within a physical or virtual
machine. An active logical server can be moved from one location to another, and its characteristics
can be modified. This feature allows you to populate an enclosure,
load balance servers, and evacuate servers in case of disaster; it
allows you to provision resources only when
needed and increase utilization of limited compute resources. See also active logical server, inactive logical server.
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| LTU | | License to use. One of the three main components
of HP Global Workload Manager (gWLM): CMS, agents, and LTU for each
agent. The CMS allows you to control and monitor gWLM. The agents
run on the systems where you are managing workloads. You install an
LTU on each system that runs an agent in order to continue full agent
functionality beyond the initial trial period.
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M |
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| managed mode | | SRD managed mode lets HP Global Workload Manager (gWLM) automatically adjust the resource allocations for your compartments. See also advisory mode, deploy.
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| managed resource | | A resource that can be allocated and controlled
by HP Virtualization Manager. Managed resources include: cores, memory, disks, and I/O bandwidth.
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| managed system | | A server or other system that can be managed by HP Systems Insight Manager (HP SIM) from a CMS . A managed system can be managed
by more than one CMS.
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| managed workload | | A workload that is managed
by HP Global Workload Manager (gWLM).
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| management domain | | A CMS and its managed systems.
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| Management Processor | | See Service Processor.
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| master I/O backplane | | The main backplane in a complex into which you plug an I/O chassis.
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| max 15-min | | Maximum 15-minute sustained: data given in the
Utilization Metric Summary screen of the HP Capacity Advisor Profile Viewer, the highest value in the
selected time interval that was sustained for at least 15 minutes.
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| Max Size | | The maximum amount of CPU resources, measured
in cores, that an HP Global Workload Manager (gWLM) policy requests for its associated workloads. In graphs, the Effective Max is shown. This value
is the smaller of Max Size and Compartment Max (the maximum amount of a resource that a compartment can have).
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| measured value | | The current value of a metric being used in a policy.
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| memory echelon | | See echelon.
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| metric | | A specific measurement that defines a performance
characteristic.
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| metric view selection | | In HP Capacity Advisor, a combination of the statistical
model (such as peak or average) used to calculate the metric and whether
it is to be presented as a percentage or an absolute value.
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| migrating processing
cores | | The process of activating and deactivating cores across partitions for
load balancing.
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| Min Size | | The minimum amount of CPU resources, measured
in cores, that an HP Global Workload Manager (gWLM) policy requests for its associated workloads. In graphs, the Effective Min is shown. This value
is the larger of Min Size and Compartment Min (the minimum amount of a resource that a compartment can have).
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| missing data | | Data that was not collected by HP Capacity Advisor, perhaps because a monitored system was down during data collection.
Such data is not used in analysis, though it may be shown in the Profile Viewer. See also invalid data, valid data.
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| monarch processor | | Also known as the boot processor, this is the
main controlling core of the operating system.
This core is designated as CPU 0.
The LPMC monitor does not deactivate or replace a failing monarch
processor.
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| monitored workload | | A workload that can be
monitored by HP Virtualization Manager but has no policy associated with it. Monitored
workloads are not managed by HP Global Workload Manager (gWLM).
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| multithreading | | The ability of an application and operating system
to allow parallel computing by dividing processing between multiple processors or cores.
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N |
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| node | | See system.
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| nPartition | | A partition in a cell-based server that consists of one or more cells, and one or more I/O
chassis. Each nPartition operates independently of other
nPartitions and either runs a single instance of an operating system
or is further divided into virtual partitions. nPartitions can be used as compartments managed by HP Global Workload Manager (gWLM) as long as several requirements are met. Refer to the gWLM online
help for a description of nPartition requirements. See also virtual partition.
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| nPartition Configuration
Privilege | | A feature available on newer cell-based servers that can be used to restrict the ability of privileged
users on one nPartition from affecting other
nPartitions. This feature is configured by using the PARPERM command at the Service Processor command
interface. For more information, refer to the Partition Manager Configuration Privilege topic.
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| nPartition Provider | | The WBEM services provider for nPartition information
about cell-based servers.
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| nPartition server | | See cell-based server.
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O |
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| online activation | | The ability to activate a deactivated
core using HP Instant
Capacity (iCAP) software while HP-UX
is running. No reboot is required. This is done with the icapmodify command or, in a virtual partition, with the vparmodify command. Online activation is the default behavior
of iCAP.
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| OS | | Operating system.
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| OwnBorrow policy | | An HP Global Workload Manager (gWLM) policy for managing
a workload's compartment. This type of policy allows you to set the
following values: The minimum amount of
CPU resources that a compartment should ever have. The maximum amount of
CPU resources that a compartment should ever have. The amount of CPU resources
that a compartment owns.
A compartment is allocated the resources it owns
when they are needed. When a workload is not busy, gWLM may lend its
CPU resources to other workloads that are busy, as long as the compartment
minimum is maintained. When it becomes busy, a compartment will immediately
re-acquire any resources that were loaned to other compartments. A
compartment with a busy workload can borrow CPU resources up to its
allowed maximum, if resources are available from other compartments. You can assign a weight to an OwnBorrow policy in order to prioritize
resource allocation.
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| owned size | | Resources, measured in cores, that are allocated
to a compartment when they are required. A
compartment can lend its owned resources to other compartments.
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P |
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| PACI | | Partition console interface. Provides console
access for an nPartition. PACI is a part of core I/O.
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| package | | A package groups application services (individual
HP-UX processes) together. See also Serviceguard package.
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| parked workload | | A workload that is not
currently associated with a system. A workload
becomes parked if its system is set to “none” when it
is created or later modified. A parked workload that was previously
associated with a system may have historical data associated with
it from HP Capacity Advisor or HP Global Workload Manager (gWLM). As with any workload, the historical data will be
lost if the workload is deleted. When migrating a workload from one system to
another, it may be useful to park the workload (removing the association
with the original system) until the new system becomes available.
This preserves the historical data for the workload across the migration.
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| partition | | A subset of server hardware that includes core, memory, and I/O resources on which an operating system (OS) can be run. This type of partitioning allows a single
server to run an OS independently in each partition with isolation
from other partitions. A resource
partition, made up of either a Fair-Share Scheduler (FSS)
group or a processor set, that runs within a single OS. This type of partitioning controls
resource allocations within an OS.
See also nPartition, virtual partition.
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| Partition Configuration
Data | | See PCD.
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| partition console
interface | | See PACI.
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| partition database | | See vPars partition database.
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| Partition Manager | | The HP VSE Management Software application that manages
and configures nPartitions on |
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