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Subset of computer's virtualised hardware resources
A logical partition (LPAR) is a subset of a computer's hardware resources, virtualized as a separate computer. In effect, a physical machine can be partitioned
Logical_partition
Creation of accessible areas on secondary storage device
before any other part of the disk. Each partition then appears to the operating system as a distinct "logical" disk that uses part of the actual disk
Disk_partitioning
Table inside a master boot record
system the partition contains or to flag special access methods used to access these partitions (e.g. special CHS mappings, LBA access, logical mapped geometries
Partition_type
Computer data storage partitioning standard
master boot record (MBR) partition tables, such as support for more than four primary partitions and 64-bit rather than 32-bit logical block addresses (LBA)
GUID_Partition_Table
Subsidiary partition table in the MBR partitioning scheme
(EBR), or extended partition boot record (EPBR), is a descriptor for a logical partition under the common DOS disk drive partitioning system. In that system
Extended_boot_record
storage media. The utility supports both functioning disks and damaged logical partitions and recovers data from both reformatted disks and disks which have
Hetman_Partition_Recovery
Micro-Partitioning, also known as shared processor partitioning, is a form of logical partitioning which was introduced by IBM on systems using the POWER5
Micro-Partitioning
Implementation of logical volume manager for Microsoft Windows NT
LDM. ^1 On a disk partitioned with the MBR Partition Table scheme, the Logical Disk Manager metadata are not stored in a partition, but are stored in
Logical_Disk_Manager
Logical partition technology in IBM POWER servers
Dynamic Logical Partitioning (DLPAR), is the capability of a logical partition (LPAR) to be reconfigured dynamically, without having to shut down the operating
Dynamic_Logical_Partitioning
Act of installing multiple operating systems on a single computer
which can be either in a primary partition or in a logical volume within the extended logical partition. It is possible to include a boot loader such as
Multi-booting
First sector of partitioned PC computer disk
extended partition, a special primary partition type used as a container to hold other partitions, was added with DOS 3.2, and nested logical drives inside
Master_boot_record
Topics referred to by the same term
division of a logical database Logical partition, a subset of a computer's resources, virtualized as a separate computer Binary space partitioning, in computer
Partition
Computer storage space allocation method
logical volume management (LVM) provides a method of allocating space on mass-storage devices that is more flexible than conventional partitioning schemes
Logical_volume_management
Aspect of a computer disk file system
0x0C (FAT32 with logical block addressing), and 0x0E (FAT16 with logical block addressing) types as well. A basic data partition can be formatted with
Microsoft basic data partition
Microsoft_basic_data_partition
Configuration in computer memory
Translation Control Entry (TCE) has been described in a document entitled Logical Partition Security in the IBM eServer pSeries 690. The PCI-SIG has relevant
Input–output memory management unit
Input–output_memory_management_unit
Line of mainframe computers
to run concurrently in separate logical partitions (LPARs), with a high degree of isolation. Initially 7 partitions per a disconnected side were supported
IBM_System/390
Divisioning of a logical database
A partition is a division of a logical database or its constituent elements into distinct independent parts. Database partitioning refers to intentionally
Partition_(database)
Network tunneling protocol
a 12-bit VLAN ID), VXLAN increases scalability up to about 16 million logical networks (using a 24-bit VNID) and allows for layer-2 adjacency across
VXLAN
Logical connective AND
\wedge } ) is the truth-functional operator of conjunction or logical conjunction. The logical connective of this operator is typically represented as ∧ {\displaystyle
Logical_conjunction
Real-time operating system
which has a separation kernel-based hypervisor that supports multiple logical partition types for various operating systems (OS) and applications, each referred
PikeOS
1947 division of British India
ISBN 9788171004096, retrieved 6 April 2016, ... The partition of the country did not take the two-nation theory to its logical conclusion, i.e., complete transfer of
Partition_of_India
Computer software
partitions. Allows sector-precise editing of primary partitions, logical drives, and EBR extended partitions (type 05). A particularly rare feature of RPM is
Ranish_Partition_Manager
Computer disk partitioning standard for legacy Macintosh computers
introduced with the Macintosh II. Disks using the Apple Partition Map are divided into logical blocks, with 512 bytes usually belonging to each block.
Apple_Partition_Map
Piece of software or hardware that creates and runs virtual machines
CoolThreads servers. IBM provides virtualization partition technology known as logical partitioning (LPAR) on System/390, zSeries, pSeries and IBM AS/400
Hypervisor
Way to identify a logical unit in computer storage
and then partition this RAID into several separate storage-volumes. To represent each volume, a SCSI target is configured to provide a logical unit. Each
Logical_unit_number
Relationship where one statement follows from another
Logical consequence (also entailment or logical implication) is a fundamental concept in logic which describes the relationship between statements that
Logical_consequence
File system used by MS-DOS and Windows 9x
additional partition called logical drive. Since PC DOS 3.3 (April 1987), there is another, optional extended partition containing the next logical drive,
File_Allocation_Table
Statement that is true regardless of the truth or falsity of its constituent propositions
Logical truth is one of the most fundamental concepts in logic. Broadly speaking, a logical truth is a statement which is true regardless of the truth
Logical_truth
Command line program
create a new partition: create partition logical size=2048 assign letter=F Specifically, the above will create a 2 GB logical partition, provided that
Diskpart
Topics referred to by the same term
Automation and Measuring Systems (ASAM) Multiple Domain Facility; see Logical partition Map-dot-fingerprint dystrophy, a genetic disease affecting the cornea
MDF
Logical operation
In logic, negation, also called the logical not or logical complement, is an operation that takes a proposition P {\displaystyle P} to another proposition
Negation
Logical connective OR
logic, disjunction (also known as logical disjunction, logical or, logical addition, or inclusive disjunction) is a logical connective typically notated as
Logical_disjunction
Process of salvaging inaccessible data from corrupted or damaged secondary storage
or access data stored on them. Logical failures can occur due to corruption of the engineering chip, lost partitions, firmware failure, or failures during
Data_recovery
Methods for dividing computing resources
mainframes. IBM refers to its specific form of hardware virtualization as "logical partition", or more commonly as LPAR. Hardware-assisted virtualization reduces
Virtualization
Symbol connecting formulas in logic
In logic, a logical connective (also called a logical operator, sentential connective, or sentential operator) is an operator that combines or modifies
Logical_connective
Family of operating systems for IBM PC compatibles
of the extended partition logical drives. Moreover, even adding a new hard drive having only logical drives in an extended partition would still disrupt
DOS
Statement that is taken to be true
for reasoning. In mathematics, an axiom may be a "logical axiom" or a "non-logical axiom". Logical axioms are taken to be true within the system of logic
Axiom
Logical volume management system
partition might need to be, LVM allows filesystems to be easily resized as needed. Performing consistent backups by taking snapshots of the logical volumes
Logical Volume Manager (Linux)
Logical_Volume_Manager_(Linux)
Computer instruction set architecture
It is based on Power ISA v.2.06 and includes major enhancements to logical partition functions, transactional memory, expanded performance monitoring,
Power_ISA
Way to specify the location of data on computer storage devices
boot load time. Disks partitioned with MBR use 32-bit logical block addressing LBA to handle the total number of physical or logical sectors, that is, they
Logical_block_addressing
Disklabel for BSD operating systems
extended partitions and logical partition system used by MS-DOS, Windows and Linux. The same PC hard drive can have both BSD disklabel partitions and the
BSD_disklabel
Proper alignment of partitions in data storage device
Track partition alignment, partitions starting on track boundaries on hard disk drives Cylinder partition alignment, partitions starting on logical or physical
Partition_alignment
For transferring SCSI commands and data
Virtual SCSI allows client logical partitions to access I/O devices (disk, CD, and tape) that are owned by another logical partition. The following SRP target
SCSI_RDMA_Protocol
Development of classes and classifications
taxonomy", which mixes historical and empiricist principles). Logical division, or logical partitioning (top-down classification or downward classification) is
Taxonomy
Data storage portion for Microsoft Windows
partition layout, certain software components used hidden sectors of the disk for data storage purposes. For example, on dynamic disks, the Logical Disk
Microsoft_Reserved_Partition
OS-level virtualisation
machine. Operating system-level virtualization Logical Partitioning (LPAR) Dynamic Logical Partitioning (DLPAR) FreeBSD jail Solaris Containers OpenVZ
Workload_Partitions
Family of mainframe computers
Processor Resource and System Manager (PR/SM) to deploy one or more Logical Partitions (LPARs). Each LPAR supports a variety of operating systems. A hypervisor
IBM_Z
Technology for carrying Ethernet traffic over wide area networks
Native CP/CMS Hyper-V KVM oVirt LDoms / Oracle VM Server for SPARC Logical partition (LPAR) LynxSecure PikeOS Proxmox VE QNX SIMMON SmartOS VMware ESXi
Ethernet_VPN
Server partitioning hardware and software
Logical Domains (LDoms or LDOM) is the server virtualization and partitioning technology for sun4v processors. It was first released by Sun Microsystems
Oracle_VM_Server_for_SPARC
Series of Unix operating systems from IBM
installed but not activated by default JFS2 Ability to run in a Logical Partition on POWER4 The L stands for Linux affinity Trusted Computing Base (TCB)
IBM_AIX
Method of deriving conclusions
from premises. They are integral parts of formal logic, serving as the logical structure of valid arguments. If an argument with true premises follows
Rule_of_inference
Therefore, logical disks are used to partition the available capacity and provide the amount of storage needed by each host from a common pool of logical disks
Logical_disk
Disk utility for macOS
macOS. Features include: Create, convert, backup, compress, and encrypt logical volume images from a wide range of formats to .dmg or, for CD/DVD images
Disk_Utility
Series of high-end 1980s IBM mainframe computers
operator to define and assign resource to a virtual machine known as a logical partition (LPAR). Initially there was a 4-LPAR limit for uniprocessors and an
IBM_3090
Computer software
partitions. A disk partition is a logical segment of the storage space on a storage device. By partitioning a large device into several partitions, it is possible
Disk_editor
Concept in logic
logically equivalent if they have the same truth value in every model. The logical equivalence of p {\displaystyle p} and q {\displaystyle q} is sometimes
Logical_equivalence
Computing terms for disk partitions
system partition for booting. As of Windows 11, this nomenclature is still used by the "Disk Management" utility. UFS had defined the boot logical units
System partition and boot partition
System_partition_and_boot_partition
This is a list of utilities for performing disk partitioning.
List of disk partitioning software
List_of_disk_partitioning_software
Different bootloaders
the ability of the boot loader to be stored in the first sector of any partition on a mass storage device. https://wiki.archlinux.org/title/REFInd#Ins
Comparison_of_bootloaders
Distinctly-addressable storage unit
logical drive. An operating system (OS) can potentially recognize a partition without recognizing a volume associated with it, as when a partition has
Volume_(computing)
Alphabetical assignment to logical drives on computers (e.g., C:\)
subsequent drive letters to every recognized logical partition present in the first extended partition, beginning with the first hard drive and proceeding
Drive_letter_assignment
Network virtualisation technology
Native CP/CMS Hyper-V KVM oVirt LDoms / Oracle VM Server for SPARC Logical partition (LPAR) LynxSecure PikeOS Proxmox VE QNX SIMMON SmartOS VMware ESXi
Network Virtualization using Generic Routing Encapsulation
Network_Virtualization_using_Generic_Routing_Encapsulation
Mathematical use of "for all"
mathematical logic, a universal quantification is a type of quantifier, a logical constant which is interpreted as "given any", "for all", "for every", or
Universal_quantification
Symbol representing a property or relation in logic
In logic, a predicate is a non-logical symbol that represents a property or a relation, though, formally, does not need to represent anything at all.
Predicate_(logic)
Mathematical table used in logic
functional values of logical expressions on each of their functional arguments, that is, for each combination of values taken by their logical variables. In
Truth_table
IBM midrange computer (1988–2013)
AS/400-specific IBM Machine Type (MT/M 9406–520) and were able to run AIX in a logical partition along i5/OS, while the p5 servers were able to run i5/OS, respectively
IBM_AS/400
Interface to device driver that appears in filesystem
partition are numbered 1 through 4, while the indexes of any logical partitions are 5 and onwards, regardless of the layout of the former partitions (their
Device_file
Blade server architecture by IBM
Features: Can run AIX or Linux Can do virtualization, with Dynamic Logical Partitioning (DLPAR) capabilities Processors: Two PowerPC 970FX single-core at
IBM_BladeCenter
Mainframe computer hardware
the use of an Internal Coupling Facility where the CFCC runs in a logical partition (LPAR) defined in standard processor complex and communicates over
Coupling_Facility
modules in 1 MiB chunks (partitions) so that all of the modules' resources are used evenly. For robustness, each logical partition is stored in at least
IBM_XIV_Storage_System
2015 64-bit mainframe microprocessor by IBM
new SIMD instructions, data compression, improved cryptography and logical partitioning. The cores have numerous other enhancements such as a new superscalar
IBM_z13
Attempt to persuade or to determine the truth of a conclusion
premises—sentences, statements, or propositions—directed towards arriving at a logical conclusion. The purpose of an argument is to give reasons for one's thinking
Argument
Axiom of set theory
Partition principle: Given two sets A and B, if a surjection exists from A to B, then an injection exists from B to A. Equivalently, every partition P
Axiom_of_choice
Value indicating the relation of a proposition to truth
In logic and mathematics, a truth value, sometimes called a logical value, is a value indicating the relation of a proposition to truth, which in classical
Truth_value
Mathematical model for deduction or proof systems
with the deductive nature of the system. The logical consequence (or entailment) of the system by its logical foundation is what distinguishes a formal system
Formal_system
Large and powerful computer
mainframes, notably the IBM Z servers, offer two levels of virtualization: logical partitions (LPARs, via the PR/SM facility) and virtual machines (via the z/VM
Mainframe_computer
Logical volume management system on macOS
is a logical volume management system on macOS that was introduced by Apple in Mac OS X Lion. Core Storage is a layer between the disk partition and the
Core_Storage
Component of IBM z/OS
z/OS, and the PR/SM Logical Partitioning (LPAR) hypervisor, a function of the mainframe hardware. Major IRD functions are: Logical CP Management - where
Intelligent_Resource_Director
Live Partition Mobility, a component of the PowerVM Enterprise Edition hardware feature, provides the ability to move AIX, IBM i, and Linux logical partitions
Live_Partition_Mobility
which contain no executable code. A machine may be divided into Logical Partitions (LPARs), each with its own virtual system memory so that multiple
IBM Enterprise Systems Architecture
IBM_Enterprise_Systems_Architecture
Operating system for IBM mainframes
system (either MVS, or VM with guests, or other) could also occupy a Logical Partition (LPAR) instead of an entire physical system. Multiple MVS instances
MVS
In logic, a statement which is always true
interpretation of its component terms, with only the logical constants having a fixed meaning. It is a logical truth. For example, a formula that states "the
Tautology_(logic)
Subfield of mathematics
'algebra of logic', and, more recently, simply 'formal logic', is the set of logical theories elaborated in the course of the nineteenth century with the aid
Mathematical_logic
Business computer
Corporation. The System Ten, introduced in 1970, featured an early form of logical partitioning. The System Ten was a character-oriented computer, using 6-bit BCD
Singer_System_Ten
High-end line of RISC (POWER)/UNIX-based servers
eServer p5 machines support DLPAR (Dynamic Logical Partitioning) with Virtual I/O and Micro-partitioning. System p generally uses the AIX operating system
IBM_System_p
Hypothetical split of the country into Wallonia and Flanders
The partition of Belgium is a hypothetical situation, which has been discussed by both Belgian and international media, envisioning a split of Belgium
Hypothetical partition of Belgium
Hypothetical_partition_of_Belgium
Algebraic manipulation of "true" and "false"
the values of the variables are numbers. Second, Boolean algebra uses logical operators such as conjunction (and) denoted as ∧, disjunction (or) denoted
Boolean_algebra
Symbol with a fixed meaning in logic
types of logical constants are logical connectives and quantifiers. The equality predicate (usually written '=') is also treated as a logical constant
Logical_constant
Assignment of meaning to the symbols of a formal language
hand, an interpretation does not have anything to say about logical symbols, e.g. logical connectives " a n d {\displaystyle \mathrm {and} } ", " o r
Interpretation_(logic)
Overview article
are in the same logical partition, they won't be able to access partitioned resources. A system may be part of multiple network partitions. The Schannel
Security and safety features new to Windows Vista
Security_and_safety_features_new_to_Windows_Vista
Set of sentences in a formal language
statements are taken as axioms. In a deductive theory, any sentence that is a logical consequence of one or more of the axioms is also a sentence of that theory
Theory_(mathematical_logic)
Line of mainframe computers
the System z10, and with the appropriate version of z/VM, a single logical partition (LPAR) can now span all processor types. Previously, IFLs (Linux processors)
IBM_System_z10
Mathematical theory of data types
Gregory Bateson introduced a theory of logical types into the social sciences; his notions of double bind and logical levels are based on Russell's theory
Type_theory
Form of logic that allows quantification over predicates
and a variety of other powerful logical theories could be formulated axiomatically without appeal to any more logical apparatus than first-order quantification
Second-order_logic
Type of logical system
of formal system. First-order logic uses quantified variables over non-logical objects, and allows the use of sentences that contain variables. Rather
First-order_logic
Study of the semantics, or interpretations, of formal and natural languages
validity, and logical consequence. While logical syntax concerns the formal rules for constructing well-formed expressions, logical semantics establishes
Semantics_(logic)
Argument whose conclusion must be true if its premises are
of an argument can be tested, proved or disproved, and depends on its logical form. In logic, an argument is a set of related statements expressing the
Validity_(logic)
If and only if relation
In logic and mathematics, the logical biconditional, also known as material biconditional or equivalence or bidirectional implication or biimplication
Logical_biconditional
3-volume treatise on mathematics, 1910–1913
the behaviour of the symbols "⊢" (assertion of truth), "∾" (logical not), and "V" (logical inclusive OR). Truth-values: PM embeds the notions of "truth"
Principia_Mathematica
Process of preparing a data storage device for initial use
a disk partition or a logical volume. This formatting includes the data structures used by the OS to identify the logical drive or partition's contents
Disk_formatting
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