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31 relations: Computer data storage, Data buffer, Disk array controller, Disk controller, Disk read-and-write head, Ext4, Fibre Channel, Hard disk drive, Hard disk drive platter, Hybrid array, Hybrid drive, Input/output, Journaling block device, Kernel.org, Linux, Linux kernel, LWN.net, Mebibyte, Microcontroller, Native Command Queuing, Operating system, Page cache, Parallel ATA, SCSI, Serial ATA, Solid-state drive, Starvation (computer science), Tagged Command Queuing, Theodore Ts'o, Transactional NTFS, Write barrier.
Computer data storage
Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media that are used to retain digital data.
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Data buffer
In computer science, a data buffer (or just buffer) is a region of a physical memory storage used to temporarily store data while it is being moved from one place to another.
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Disk array controller
A disk array controller is a device which manages the physical disk drives and presents them to the computer as logical units.
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Disk controller
The disk controller is the controller circuit which enables the CPU to communicate with a hard disk, floppy disk or other kind of disk drive.
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Disk read-and-write head
Disk read/write heads are the small parts of a disk drive which move above the disk platter and transform the platter's magnetic field into electrical current (read the disk) or, vice versa, transform electrical current into magnetic field (write the disk).
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Ext4
The ext4 or fourth extended filesystem is a journaling file system for Linux, developed as the successor to ext3.
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Fibre Channel
Fibre Channel, or FC, is a high-speed network technology (commonly running at 1, 2, 4, 8, 16, 32, and 128 gigabit per second rates) providing in-order, lossless delivery of raw block data, primarily used to connect computer data storage to servers.
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Hard disk drive
A hard disk drive (HDD), hard disk, hard drive or fixed disk is an electromechanical data storage device that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks (platters) coated with magnetic material.
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Hard disk drive platter
A hard disk drive platter (or disk) is the circular disk on which magnetic data is stored in a hard disk drive.
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Hybrid array
A hybrid array is a form of hierarchical storage management that combines hard disk drives (HDDs) with solid-state drives (SSDs) for I/O speed improvements.
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Hybrid drive
In computing, a hybrid drive (solid state hybrid drive – SSHD) is a logical or physical storage device that combines a faster storage medium such as solid-state drive (SSD) with a higher-capacity hard disk drive (HDD).
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Input/output
In computing, input/output or I/O (or, informally, io or IO) is the communication between an information processing system, such as a computer, and the outside world, possibly a human or another information processing system.
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Journaling block device
JBD, or journaling block device, is a generic block device journaling layer in the Linux kernel written by Stephen C. Tweedie from Red Hat.
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Kernel.org
kernel.org is the main distribution point of source code for the Linux kernel, which is the base of the Linux operating system.
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Linux
Linux is a family of free and open-source software operating systems built around the Linux kernel.
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Linux kernel
The Linux kernel is an open-source monolithic Unix-like computer operating system kernel.
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LWN.net
LWN.net is a computing webzine with an emphasis on free software and software for Linux and other Unix-like operating systems.
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Mebibyte
The mebibyte is a multiple of the unit byte for digital information.
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Microcontroller
A microcontroller (MCU for microcontroller unit, or UC for μ-controller) is a small computer on a single integrated circuit.
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Native Command Queuing
In computing, Native Command Queuing (NCQ) is an extension of the Serial ATA protocol allowing hard disk drives to internally optimize the order in which received read and write commands are executed.
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Operating system
An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs.
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Page cache
In computing, a page cache, sometimes also called disk cache, is a transparent cache for the pages originating from a secondary storage device such as a hard disk drive (HDD).
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Parallel ATA
Parallel ATA (PATA), originally, is an interface standard for the connection of storage devices such as hard disk drives, floppy disk drives, and optical disc drives in computers.
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SCSI
Small Computer System Interface (SCSI) is a set of standards for physically connecting and transferring data between computers and peripheral devices.
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Serial ATA
Serial ATA (SATA, abbreviated from Serial AT Attachment) is a computer bus interface that connects host bus adapters to mass storage devices such as hard disk drives, optical drives, and solid-state drives.
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Solid-state drive
A solid-state drive (SSD) is a solid-state storage device that uses integrated circuit assemblies as memory to store data persistently.
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Starvation (computer science)
In computer science, starvation is a problem encountered in concurrent computing where a process is perpetually denied necessary resources to process its work.
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Tagged Command Queuing
Tagged Command Queuing (TCQ) is a technology built into certain ATA and SCSI hard drives.
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Theodore Ts'o
Theodore Yue Tak Ts'o (曹子德) (born 1968) is a software engineer mainly known for his contributions to the Linux kernel, in particular his contributions to file systems.
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Transactional NTFS
Transactional NTFS (abbreviated TxF) is a component introduced in Windows Vista and present in later versions of the Microsoft Windows operating system that brings the concept of atomic transactions to the NTFS file system, allowing Windows application developers to write file-output routines that are guaranteed to either succeed completely or to fail completely.
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Write barrier
In operating systems, write barrier is a mechanism for enforcing a particular ordering in a sequence of writes to a storage system in a computer system.
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References
[1] https://en.wikipedia.org/wiki/Disk_buffer
