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scratch disk

   Also found in: Wikipedia 0.01 sec.
scratch disk
A hard disk used to store data temporarily. In highly computational applications such as editing large images or video, the scratch disk is used to hold the data being edited. If there is only one drive in the system, a separate partition can be created and not used for anything else, ensuring there is always available space. However, having a separate drive for the scratch disk improves performance. For professional use, one or more separate high-speed drives may be designated as scratch drives. See scratch tape and scratchpad.
1.(storage)scratch disk - See scratch.
2.(operating system)scratch disk - Unallocated space on Windows 95's primary hard disk partition, used for virtual memory.

Shortage of space on this partition can result in the error "scratch disk full".


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What happens because of this is your computer has to frequently read and write to the scratch disk or the RAM.
DMF enables data files that are over a certain age to be automatically taken offline to a tape facility -- making the much faster scratch disk space self-managing.
The Center for Parallel Computing at the Federal University of Rio de Janeiro selected an SGI Altix 450 with 32 Intel(R) Itanium(R) 2 processors with 64GB of memory running Novell's SUSE(R) Linux Enterprise Server 9 and an SGI InfiniteStorage 120 system, which incorporates the performance and reliability of Serial Attached SCSI (SAS) disk drives for mission critical applications, with 8 X 300GB scratch disk.
 
 
 
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