Minimizing delay periods when accessing mirrored disks

Abstract

Methods, apparatus and computer program products implement embodiments of the present invention that include arranging a first storage device and a second storage device to store data in a mirrored configuration. Upon a host processor receiving, in response to a first request conveyed to read the data from the first storage device, a message indicating that the first storage device is in an error recovery mode, the host processor can convey a second request to read the data from the second storage device. Upon receiving the data from the second storage device, the host processor can cancel the first request. Storage devices implementing embodiments of the present invention include hard disk drives and solid state disk drives.

Dependencies are inferred from the claim text.