Patent ID: 7584378
Filing Date: 2009-09-01
Classification: G06F

Abstract:
1. A data storage system, comprising: first and second storage enclosures, each storage enclosure comprising: a first inter-enclosure path between the first array in the first storage enclosure and the first array in the second storage enclosure, the first inter-enclosure path being enabled during normal operation of the storage system; a second inter-enclosure path between the second array in the first storage enclosure and the second array in the second storage enclosure, the second inter-enclosure path being enabled during normal operation of the storage system; and a controller, comprising a first path to the first array in the first enclosure and a second path to the second array in the first enclosure whereby, during normal operation of the system, the first arrays in the first and second enclosures are configured as a first storage loop and the second arrays in the first and second enclosures are configured as a second storage loop, the controller being configured to: