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- Disk_buffer abstract "In computer storage, disk buffer (often ambiguously called disk cache or cache buffer) is the embedded memory in a hard drive acting as a buffer between the rest of the computer and the physical hard disk platter that is used for storage. Modern hard disks come with 8 to 128 MiB of such memory, and solid-state drives come with up to 512 MB or 1 GB of cache memory.Since the late 1980s, nearly all disks sold have embedded microcontrollers and either an ATA, Serial ATA, SCSI, or Fibre Channel interface. The drive circuitry usually has a small amount of memory, used to store the bits going to and coming from the disk platter.The disk buffer is physically distinct from and is used differently from the page cache typically kept by the operating system in the computer's main memory. The disk buffer is controlled by the microcontroller in the hard disk drive, and the page cache is controlled by the computer to which that disk is attached. The disk buffer is usually quite small, from 8 to 64 MiB, and the page cache is generally all unused physical memory. While data in the page cache is reused multiple times, the data in the disk buffer is rarely reused.[citation needed] In this sense, the terms disk cache and cache buffer are misnomers; the embedded controller's memory is more appropriately called the disk buffer.Note that disk array controllers, as opposed to disk controllers, usually have normal cache memory of around 0.5–8 GiB.".
- Disk_buffer thumbnail Fujitsu_MPG3307AH_ms_avrs-110909.jpg?width=300.
- Disk_buffer wikiPageID "8641308".
- Disk_buffer wikiPageRevisionID "603398725".
- Disk_buffer hasPhotoCollection Disk_buffer.
- Disk_buffer subject Category:Computer_storage_devices.
- Disk_buffer subject Category:Hard_disk_computer_storage.
- Disk_buffer type Artifact100021939.
- Disk_buffer type ComputerStorageDevices.
- Disk_buffer type Device103183080.
- Disk_buffer type Instrumentality103575240.
- Disk_buffer type MemoryDevice103744840.
- Disk_buffer type Object100002684.
- Disk_buffer type PhysicalEntity100001930.
- Disk_buffer type Whole100003553.
- Disk_buffer comment "In computer storage, disk buffer (often ambiguously called disk cache or cache buffer) is the embedded memory in a hard drive acting as a buffer between the rest of the computer and the physical hard disk platter that is used for storage.".
- Disk_buffer label "Disk buffer".
- Disk_buffer label "Festplattencache".
- Disk_buffer sameAs Festplattencache.
- Disk_buffer sameAs m.02pfkty.
- Disk_buffer sameAs Q375176.
- Disk_buffer sameAs Q375176.
- Disk_buffer sameAs Disk_buffer.
- Disk_buffer wasDerivedFrom Disk_buffer?oldid=603398725.
- Disk_buffer depiction Fujitsu_MPG3307AH_ms_avrs-110909.jpg.
- Disk_buffer isPrimaryTopicOf Disk_buffer.
