Method and apparatus for converting between logical and...

Details Method and apparatus for converting between logical and... Method and apparatus for converting between logical and...

G - Physics

06

F

G06F 12/00 (2006.01) G06F 3/06 (2006.01) G06F 13/00 (2006.01)

Patent

CA 2388590

A method for converting between logical and physical memory space which adapts to different RAID types and configurations in a modular form. In particular, a module containing a standard set of conversion algorithms (78) is used for all conversions. The standard set of conversion or translation algorithms operate on a pseudo representation of a RAID array that has all redundant components removed. For each RAID type and configuration, the standard algorithms can be used unchanged if a method is provided to convert the real RAID array representation into the pseudo version and back again. This simplifies both the programming and the debugging. This also makes the software more modular and more easily upgradeable.

La présente invention concerne un procédé d'interconversion entre espace mémoire logique et physique s'adaptant à différents types et configurations de réseaux redondants de disques indépendants (RAID) sous une forme modulaire. En particulier, un module contenant un jeu standard d'algorithmes de conversion (78) suffit à toutes les conversions. Ce jeu standard d'algorithmes de conversion et de traduction opère sur une pseudo-représentation d'un réseau RAID dont tous les éléments redondants ont été retirés. Les algorithmes s'utilisent en l'état, quel que soit le type et la configuration RAID, dès lorsqu'on dispose d'une méthode de conversion pour l'interconversion entre la représentation du réseau RAID réel et sa version pseudo. Cela simplifie tant la programmation que la mise au point. Cela permet une plus grande modularité du logiciel qui se prête d'autant mieux ainsi aux évolutions de versions.

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