Patent ID: 7406563
Filing Date: 2008-07-29
Classification: G06F

Abstract:
1. A method for processing an access command directed to a striped configuration of disks, comprising: deriving a set of parameters based on specifications of the striped configuration of disks, the set of parameters representing inputs for processing the access command; receiving the access command, the access command being directed to a starting address within the striped configuration of disks; performing a first sequence of bit-level operations using a first subset of parameters from the set of parameters to determine a disk of the striped configuration of disks containing the starting address, wherein the first sequence of bit-level operations includes at least one bit-wise shift operation and at least one bit-wise conjunction operation; and performing a second sequence of bit-level operations using a second subset of parameters from the set of parameters to determine a block number on the disk containing the starting address, the block number corresponding to the starting address, wherein the second sequence of bit-level operations includes at least one bit-wise shift operation and at least one bit-wise conjunction operation.