Disk array system and its logical resource processing method in degradation or reconstruction state

• Main Authors: WANG LIANCHAO, SU JIA, YANG XIPING
• Format: Patent
• Language: Chinese; English
• Published: 30.03.2011
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention discloses a disk array system and a method for processing a logical resource LUN under the degradation or reconstruction condition of the disk array. The method comprise the following steps: redistributing the LUN resources in the disk array which is in the state of degradation or reconstruction to the disk array which is in the normal state according to the recording of the writing state of the LUN resources in the disk array and the writing state of the LUN resources; converting a writing business operation on the original LUN resources to a writing business operation on the newly-distributed LUN, and keeping the reading business operation on the original LUN unchanged. The system and the method have the advantages that the writing business operation on the disk array in the state of degradation or reconstruction is transferred to the normal disk array, so that the business burden of disk array in the state of degradation or reconstruction is greatly reduced, and the business reading and writi