Method, disaster recovery record, back-up apparatus and RAID array controller for use in restoring a configuration of a RAID device

摘要

A computer system has (1) an array of data storage devices, (2) an operating system stored on a RAID device and (3) a RAID controller. In response to detection of a computer system failure, the RAID device configuration is automatically restored. A system back-up memory stores a recovery record of physical drive to logical drive mapping for the RAID device. The RAID controller enables the recovery record to be processed in response to detection of a system failure. In response to computer system failure detection, the recovery record information restores the RAID array configuration. Following system failure, a computer system manager instigates the procedure by pressing a button.