STORAGE CONTROL APPARATUS, RECORDING MEDIUM HAVING STORED THEREIN STORAGE CONTROL PROGRAM AND STORAGE CONTROL METHOD

摘要

A storage control apparatus starts, in a group of storage apparatuses that store constituent data that constitute redundant data in a distributed manner in units of a stripe, in regard to respective stripes of a plurality of stripes obtained from a group of target storage apparatuses excluding one of the storage apparatuses, a plurality of rebuilding processes for restoring the constituent data; decides, for each rebuilding process, a stripe for which the rebuilding process is to be performed next, according to access loads on the respective storage apparatuses of the group of target storage apparatuses; and obtains, for each rebuilding process, constituent data corresponding to the decided stripe from the group of target storage apparatuses and executing the rebuilding process, and executes the rebuilding process, to restore constituent data stored in the excluded storage apparatus from the obtained constituent data.

主权项

1. A storage control apparatus comprising
a processor that performs a process including: in a group of storage apparatuses that store constituent data that constitute redundant data in a distributed manner in units of a stripe that is a unit in which the constituent data are stored in parallel in respective storage apparatuses of the group of storage apparatuses, in regard to respective stripes of a plurality of stripes obtained from a group of target storage apparatuses excluding one of the storage apparatuses, starting a plurality of rebuilding processes for restoring the constituent data; for each rebuilding process, deciding a stripe for which the rebuilding process is to be performed next, according to access loads on the respective storage apparatuses of the group of target storage apparatuses; and for the respective rebuilding processes, obtaining constituent data corresponding to the decided stripe from the group of target storage apparatuses and executing the rebuilding process, to restore constituent data stored in the excluded storage apparatus from the obtained constituent data.