Patent ID: 9582214
Date: 2017-02-28
CPC Classifications: G06F

Claim:
1. A data access method executed by a storage system including one or more memory apparatuses, the data access method comprising: starting, by a processor, a first process to proceed with initialization of a plurality of blocks of the memory apparatuses regardless of access requests, and updating exclusion information according to progress of the first process, the exclusion information indicating which one of the plurality of blocks is being initialized; determining, by the processor, upon receiving an access request to read data from a first storage area being a part of a block whose initialization has not been completed, whether the block indicated by the access request is being initialized by the first process in reference to the exclusion information; executing, when the block is not being initialized by the first process, by the processor, a second process to complete initialization of the block by instructing the memory apparatuses to initialize the first storage area and a second storage area not designated by the access request, the second storage area being a remaining storage area of the block other than the first storage area; and returning, by the processor, data corresponding to the initialized first storage area as a response to the access request.