05568629 is referenced by 235 patents and cites 22 patents.

A method for partitioning a disk array into logical storage units distinct from the physical storage units within the array. A set of individual drives within the array are partitioned into multiple partitions. Corresponding partitions from the individual drives are grouped together to form a logical unit which is addressed as, and functions as, an independent disk array. The partitions within the logical unit are addressed as, and function as, disk drives within the logical array. Thus, a single set of disk drives may be divided into two or more logical storage units, each functioning as an independent disk array, and each employing a different RAID level scheme for storing data. Alternatively, multiple sets of disk drives within the array can combined together into a logical storage unit which functions as a single set of drives. Corresponding drives from each set of drives are addressed as a single disk drive within the logical unit. Thus a logical unit is formed having twice or more the capacity of a single set of disk drives. Finally, The two logical disk arrays described above may be utilized together to organize a plurality of disk drives into several logical arrays, some formed from partitions of disk drives, some from combining groups of unpartitioned disk drives, and others formed from combining unpartitioned drives together with partitions of drives. Each logical array may employ a different scheme for storing data.

Title
Method for partitioning disk drives within a physical disk array and selectively assigning disk drive partitions into a logical disk array
Application Number
812339
Publication Number
5568629
Application Date
November 4, 1993
Publication Date
October 22, 1996
Inventor
Daniel A Riedl
Andover
KS, US
Gerald J Fredin
Wichita
KS, US
Timothy W Gentry
Wichita
KS, US
Agent
James M Stover
Wayne P Bailey
Assignee
Symbios Logic
CO, US
Hyundai Electronics America
CA, US
AT&T Global Information Solutions Company
OH, US
IPC
G06F 12/00
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