Method and system for writing to and reading from computer readable media

摘要

According to one embodiment, a method includes receiving a write request and determining a first portion of information associated with the write request. The method additionally includes determining a first location on a first disk to write the first portion of information and, based on the determined first location on the first disk, determining a second location on a second disk to write the first portion of information. The method further includes writing the first portion of the information to the first location on the first disk. The first location comprises an outer track of the first disk. The method further includes writing the first portion of the information to the second location on the second disk, the second location comprising an inner track of the second disk.

主权项

1. A method, comprising:
receiving a write request; determining a first portion of information associated with the write request; determining a first location on a first disk to write the first portion of information, wherein determining the first location on the first disk comprises determining a first sector corresponding to the first location; writing the first portion of the information to the first location on the first disk, the first location comprising an outer track of the first disk, wherein writing the first portion of the information to the first location on the first disk comprises writing the first portion of the information to the first sector; calculating a total number of sectors on the first disk; calculating a total number of sectors on the second disk; determining that the total number of sectors on the first disk is different than the total number of sectors on the second disk; in response to determining that the total number of sectors of the first disk is different than the total number of sectors on the second disk, determining a subset of sectors on the second disk; based on the determined first location on the first disk, determining a second location on a second disk to write the first portion of information, wherein determining the second location on the second disk comprises determining a second sector from the subset of sectors on the second disk; and writing the first portion of the information to the second location on the second disk, the second location comprising an inner track of the second disk, wherein writing the first portion of the information to the second location on the second disk comprises writing the first portion of the information to the second sector.