Mirroring disk drive sectors

摘要

A recoverable error associated with a first disk drive sector is determined. Data of the first disk drive sector is duplicated to a mirrored sector in response to the recoverable error. The first disk drive sector continues to be used to store the data after the recoverable error is determined.

主权项

1. An apparatus comprising:
a controller configured to cause the apparatus to: determine a first order indicator exhibited by a targeted sector of a hard drive, wherein the first order indicator implies importance of data stored in the targeted sector to a host based on a pattern of host access to the targeted sector; duplicate the data of the targeted sector to a mirrored sector of the hard drive in response to the first order indicator, the first order indicator causing the duplication to occur independently of error exhibited by the targeted sector; and add a reference to at least one of the mirrored sector and the targeted sector in a collection of references to sectors, wherein the collection is used to manage unrecoverable errors exhibited by the respective sectors.