Data processing system with a plurality of storage units and a backup storage unit

摘要

The invention provides for a method and apparatus for increasing performance in a data processing system (100). The data processing system (100) includes a plurality of storage devices and a backup storage device (106) wherein the backup storage device (106) is configured as a log device. Data is logged to the backup storage device after the backup storage device has been configured as a log device. In response to a failure of a storage device within the plurality of storage devices, the backup storage device is reconfigured to be used as a replacement for the failed storage device