disk cache


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disk cache

[′disk ‚kash]
(computer science)
A portion of random-access memory that contains the data most recently read from or written to the disk, allowing rapid access by the central-processing unit.

disk cache

A section of main memory or memory in the disk controller that bridges the disk and CPU. For more details, see cache.
References in periodicals archive ?
Although the greater part of distributions and parameters produced satisfactory results, to describe the service delay produced by the disk cache normal distribution is chosen because it produced the lowest average difference 1.
Solid-state disk cache can offer savings through delaying or avoiding expensive forklift upgrades and data migration by accelerating existing storage and extending its useful life.
TenXpert is a dedicated stand-alone, multi-user Novell, Windows NT, and UNIX DVD/CD-ROM network server offering up to 36 GB of hard disk cache that significantly enhances CD and DVD library performance, according to the company.
A disk cache of 256K is extremely important in lowering the average seek time; a buffer of this size is not hard to find.
Finally, there are a number of speed-up hardware cards for the PC AT generation of computers, and a number of these include disk caches.
As part of ILM, secondary disk cache is being used to stage data before being sent to tape.
TenXpert is a dedicated, standalone, multi-user, Novell, NT and UNIX, CD-ROM network server offering up to 36 GB of hard disk cache that significantly enhances CD library performance.
Equipped with a CD-ROM network server offering a 9-GB hard disk cache, users simply attach the system directly to the network for instant, simultaneous, multi-user access.
With automatic CD-ROM mounting and unmounting, a large hard disk cache, and 100-Mbps network speeds, the hardware server automatically controls all functions so there is no software to install and no Windows or Novell license fees, according to the company.
Archiving solution represents a supply of tape libraries, including the media, to resolve disk cache and ensure uninterruptible server for archiving system, migrating existing archiving software licenses or delivery of a new SW and supply of tape media.
Disk cache provides a major performance benefit and is mandatory for most moderate to high activity subsystems.