Patent ID: 6502166
Filing Date: 2002-12-31
Classification: G06F

Abstract:
An apparatus for distributing data across a plurality of disk drives, the apparatus comprising:a memory having a data striping procedure stored therein, the data striping procedure including instructions for: storing data across the disk drives, such that the data in data stripes that include substantially original data are distributed across the disk drives according to a first rule, and such that the data in data stripes that include substantially duplicate data are distributed across the disk drives according to a second rule, the data stripes having substantially original data being interleaved with the data stripes having substantially duplicate data; and a processor coupled to the memory, for executing the data striping procedure; and wherein the first rule data distributes data across the disk drives in a data stripe, such that a last data segment in the data stripe includes a duplicate of data that is stored in a first data segment of the data stripe, each other data segment, other than the last data segment, including original data.