Hot Swap

Extracted Attributes

• Key Benefits

  Improves usability, increases efficiency, enhances safety, near-zero downtime, allows replacement of faulty modules without interrupting equipment operation, manages inrush current, protects main bus and load during faults

• Also Known As

  Hot insertion

• Political Context

  Speculation of replacing a political candidate (e.g., presidential candidate) after a poor performance

• Primary Definition

  Replacement or addition of components to a system without stopping, shutting down, or rebooting the system

• Components with functionality

  Hot-swappable or hot-pluggable

• Distinction from Hot Plugging

  Hot plugging describes only the addition of components; hot swapping includes replacement or addition

• Components without functionality

  Cold-swappable or cold-pluggable

• Technical Implementation Aspects

  Connectors with staggered pins, on-board hot-swap controllers, N-channel MOSFETs as main power-control switches, sense resistors

Timeline

• Following President Joe Biden's performance in the Presidential Debate 2024, speculation arose within the Democratic Party about a 'Hot Swap' to replace him as the candidate. (Source: All-In Podcast episode 185)

  2024

Hot swapping

Hot swapping is the replacement or addition of components to a computer system without stopping, shutting down, or rebooting the system. Hot plugging describes only the addition of components to a running computer system. Components which have such functionality are said to be hot-swappable or hot-pluggable; likewise, components which do not are cold-swappable or cold-pluggable. Although the broader concept of hot swapping can apply to electrical or mechanical systems, it is usually mentioned in the context of computer systems. An example of hot swapping is the express ability to pull a Universal Serial Bus (USB) peripheral device, such as a thumb drive, mouse, keyboard, or printer out of a computer's USB slot without powering down the computer first. Most desktop computer hardware, such as CPUs and memory, are only cold-pluggable. However, it is common for mid to high-end servers and mainframes to feature hot-swappable capability for hardware components, such as CPU, memory, PCIe, SATA and SAS drives. Most smartphones and tablets with tray-loading holders can interchange SIM cards without powering down the system. Dedicated digital cameras and camcorders usually have readily accessible memory card and battery compartments for quick changing with only minimal interruption of operation. Batteries can be cycled through by recharging reserve batteries externally while unused. Many cameras and camcorders feature an internal memory to allow capturing when no memory card is inserted.

Web Search Results

• What is Hot Swapping? - GeeksforGeeks

  Hot Swapping is a feature that allows the removal or insertion of components into a computer system without needing to shut it down or reboot. This functionality, also known as "hot insertion," is common in modern devices such as USB peripherals, external drives, network adapters, and some smartphone components like SIM and memory cards. By facilitating continuous system operation during hardware changes, hot swapping improves usability, increases efficiency, and enhances safety in hardware [...] ## What is Hot Swapping? Hot-swapping allows the removal or insertion of components into the computer without shutting down or rebooting the system. It is also called "hot insertion". In this, a component can be removed and a new component can be inserted, while the main power is still on. It is a feature of USB (Universal Serial Bus), an external drive, and a network adapter. [...] | Hot-plug | Hot-swap | --- | | Hot plugging is the attachment of a component while the system is running. | Hot swaps allow the replacement of components while the system is running. | | It requires mounting the hard drive after the new drive has been installed. | Hot-swappable devices do not require any additional tasks to install. | | It is the attachment of components only | It is the replacement or addition of components. |

• Hot swapping - Wikipedia

  \\Hot swapping\\ is the replacement or addition of components to a computer system without stopping, shutting down "Shutdown (computing)"), or rebooting the system.( plugging\\ describes only the addition of components to a running computer system.( Components which have such functionality are said to be \_hot-swappable\_ or \_hot-pluggable\_; likewise, components which do not are \_cold-swappable\_ or \_cold-pluggable\_. Although the broader concept of hot swapping can apply to electrical or [...] Hot swapping is the central method in live coding, where programming is an integral part of the runtime process. In general, all programming languages used in live coding, such as SuperCollider, TidalCycles, or Extempore "Extempore (software)") support hot swapping. [...] Hot swapping is used to add or remove peripherals or components and to replace faulty modules without interrupting equipment operation. For example, a machine may have dual hot-swappable power supplies, each adequate enough to power the machine on its own. If one of those power supplies breaks and shuts down, the machine will not shut down, as it will draw power from the other, functional power supply. The faulty power supply can be replaced during operation of the machine, eventually bringing

• What does it mean to hot swap in computing? - TechTarget

  Hot swap is a key feature of USB devices that allows the addition of peripheral hardware without having to shut down the system. So, when a component in a server fails, the redundant unit automatically takes over. Flawed or failed hardware can be replaced without disruption. [...] WhatIs Home IT operations Definition # hot swap By Andrew Zola Published: Nov 01, 2021 ## What is a hot swap? A hot swap describes the act of removing components from or plugging them into a computer system while the power remains switched on. This means that parts can be changed without shutting down or rebooting a computer or server. Hot swap is sometimes called "hot plug" and "hot insertion." However, hot plugging describes the addition of components only. [...] Hot swapping works by providing a rack or enclosure for the device that gives the appearance of an uninterrupted connection to the computer's bus or controller. The system thinks that the device is intact while it's being removed or replaced.

• [PDF] Robust Hot Swap Design (Rev. A) - Texas Instruments

  A Hot Swap is usually placed on the input of a plug-in card to manage inrush current and to protect the main bus and the load during faults. Hot-Swap applications place a lot of stress on the MOSFET used as a pass element and a major challenge is to ensure that it is safely operated under all possible conditions. First, this application note discusses key principals and considerations for Hot Swap design. Then a design procedure is outlined using the LM5066I as an example. This procedure is [...] Figure 2 shows a start-up into a purely capacitive load. The Hot Swap will regulate the Hot Swap MOSTFET’s gate to maintain a power dissipation which is under the power limit and keep the input current under the current limit. Note that the inrush current increases as V OUT increases, because the V DS of the MOSFETs will decrease. The start time can be computed with Equation 3. Note that the Hot Swap will be in power limit or current limit during most of the start-up and hence one should [...] When using parallel MOSFETs, the designer must consider how well they current share. For Hot Swap design, TI recommends using these assumptions: • When the FETs are fully enhanced, (V GS > 10V) they will share the current evenly. Thus when computing the steady state case temperature, one can assume that each FET’s current equals the load current / # of MOSFETs.

• Example of Hot-Swap Circuit Design Process - Analog Devices

  hot swapping, or in some cases hot plugging (where the module interacts with the system software). To hot swap safely, connectors with staggered pins are often used to ensure that grounds and local power are established before other connections are made. In addition, each printed-circuit board (PCB) or plug-in module has an on-board hot-swap controller to facilitate the safe removal and insertion of the module from a live backplane. While in operation, the controller also offers continuous [...] The ADM1177 hot-swap controller consists of three main components (Figure 2): an N-channel MOSFET that serves as the main power-control switch, a sense resistor that measures the current, and the hot-swap controller—which includes a current-sense amplifier—completing the loop to control the MOSFET’s pass current. [...] High-availability systems, such as servers, network switches, redundant-array-of-independent-disk (RAID) storage, and other forms of communications infrastructure, need to be designed for near-zero downtime throughout their useful life. If a component of such a system fails or needs updating, it must be replaced without interrupting the rest of the system. The board or module will have to be removed—and its replacement plugged in—while the system remains up and running. This process is known as

• Instance Of

  Q7889