System for achieving enhanced performance and data availability

Details System for achieving enhanced performance and data availability System for achieving enhanced performance and data availability

1992-09-09

1999-01-05

Lee, Thomas C.

Boots, shoes, and leggings

395441, 3649521, 3649562, 364965, 3649442, 371 101, G06F 1100, G06F 1116

Patent

active

058571124

ABSTRACT:
The present invention provides a system of hardware and software that combine to efficiently integrate the various requirements for system performance and system reliability in a RAID system. A user of the present invention is able to select from a range of system performance and reliability configurations, independently of each other. From user specifications, the present invention initially constructs a user space which must be mapped onto the physical storage space in the array of disk drives. The present invention preserves the orthogonality of performance and reliability concepts through a series of mappings that relate to these concepts independently as it transforms user space into the physical space of the disk array.

REFERENCES:
patent: 4947477 (1990-08-01), Little
patent: 5159608 (1992-10-01), Falconer et al.
patent: 5167032 (1992-11-01), Martin et al.
patent: 5237658 (1993-08-01), Walker et al.
patent: 5257362 (1993-10-01), Menon
patent: 5257391 (1993-10-01), DuLac et al.
patent: 5301297 (1994-04-01), Menon et al.
patent: 5303244 (1994-04-01), Watson
Relying on Raid; Doug McLean; DEC User; Feb., 1992; p. 43(1).
Orthogonal Concepts in Array Technology, Sep. 10, 1990 at Disc Array Forum.
Maximizing Performance in a Striped Disk Array, 1990 by IEEE.
Performance Consequences of Parity Placement, 1990 by ACM.

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