Single Large Expensive Disk

SLED: Laufwerksmodul einer IBM 3380

Single Large Expensive Disk (engl.: einzelne große teure Platte) ist eine Bezeichnung für die von Mitte der 1950er Jahre bis in die 90er z. B. bei Großrechnern üblichen Datenspeicherlösungen, aus einzelnen, aus heutiger Sicht vergleichsweise großformatigen und teuren Festplatten. Dagegen steht das Ende der 80er aufgekommene RAID-Konzept, in dem mehrere günstige, kleinformatige Platten in einem flexiblen und Redundanz-gesicherten Verbund zusammenarbeiten.[1][2]

Einzelnachweise

  1. ↑ David A. Patterson, Garth Gibson, and Randy H. Katz: A Case for Redundant Arrays of Inexpensive Disks (RAID). (PDF; 1,2 MB) University of California, Berkeley, 1988, abgerufen am 8. Februar 2011: „While the capacity of Single Large Expensive Disks (SLED) has grown rapidly, the performance improvement of SLED has been modest.“
  2. ↑ 20th century disk storage chronology. IBM, abgerufen am 8. Februar 2011.

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